Unfortunately it doesn't convince me, unless makita, dewalt and milwaukee will make a universal battery, or an adapter that'll work for all of them. I'm not buying a $100 a piece dewalt or milwaukee battery, just so I can keep them around for the guys I work with to use :/.
Yes It helped a lot My situation usually boils down to “If you have the money, you can buy it. If you don’t, you can learn how to make it without or make it yourself.” And I’m a combination of frugal and poor 😂
Thank you for providing us with this very important information!! I just saw reviewers on amazon showing how the Waitley adapter melted with continuous use.
Don't listen to this person, those cheap adaptors are fine if you have common sense, if your dumb keep paying the tool companies extortionate prices for batteries
Thank you so much! Spent hours in 2022 trying to find some definitive answers about this and came up empty handed. You've answered all my questions and more.
That depends how much is the usage of the tool. If you use in home projects I do not think you will over use your battery that much to discharge it beyond charging. If you are professional and working every day with these tools it make sense do not have adapters at all. If you have like me 10 drills collected in the last 20 years and some of the NiHibrid batteries died, just go ahead and buy batteries adapters for them.
Yeah... That's why I chose Makita as my main tools/batteries and I adapt them to everything else when needed. It's moronic to have the low battery cut off, overheat protections etc, inside the tool instead of inside the battery. I also have battery "adapters" that just give me two wires to use with whatever I like.. I use them for everything from soldering irons to RC cars to AC power inverters. When the battery gets low, or too hot, it shuts itself off not matter what my application is., Makita also has fantastic chargers (although I had to go with a 3rd party to find a super-portable/small one). They're really the only company doing batteries right.
I see nothing wrong with using them if you're aware of these issues. I'd never use one in a tool that just stays on, like a flashlight or a sander. But on most power tools like drills and saws, you're going to notice the lack of power from the voltage drop long before the cells get to any dangerously low level. Likewise you should be paying attention to heat from either the tool or the battery. I'm using batteries that have their own 3-bar LED and I tend to take them off adapters once they're at one bar. I'm tempted to add a voltage screen to adapters in the future. As someone else said, this is really a problem with Dewalt's battery design more than adapters as a concept. The cell protection should be in the battery pack, like with Makita.
You have layman's understanding on what is involved in battery protection and very naive idea of why batteries are designed the way they are. Dewalt/Milwaukee does not have LVD in batteries because high power batteries will require expensive MOSFETs with massive heatsinks to handle high currents, and will get very hot. Also, under heavy loads it's very easy to miss the cutoff voltage as the cell discharge is very nonlinear. Risking a $100-250 battery to run a crappy $50 old tool is stupid.
@@drcpaintball I definitely value your expertise here but for what I use adapters for and my general low- intensity tool use I'm still unconcerned. If I was a contractor using the tools consistantly and constantly swapping batteries I would of course use all the same branded batteries with their tools. But I'm talking about how every once in a blue moon I need to cut some sheetrock with the oscilating tool, so I use my 5ah dewalt battery with my cheap craftsman oscilating tool, for 15 minutes. Nothing you've said has convinced me that this is dangerous or harmful to the battery. Like I said, I don't use my adapters when they're down to 1 bar. Plenty of juice left, nowhere near the cutoff. The tools I buy cheap versions of and use adapters for are all tools that see very little use. If the reason Dewalt and Milwaukee don't put the protections in the battery is cost, why does makita do it, and how can they maintain competetive prices? As for risking a $100 on a $50 tool being stupid, sure I guess. But if it would have cost $150 for the big brand tool that I rarely use, the savings is easily worth the risk. If, and to me this is a big if, I have to replace the $100 battery, I've still spend the same. More likely I'll get a free battery or free tool down the line in one of those bundles. The risk is minimal and eventual. The savings is immediate and significant.
@@caramelzappa it's not about costs, it's about locking people into a proprietary system so you have 'captured' a customer base. You really think they *need* a new battery system every few years? They do not. They change the design for force upgrades. The motor does not care where the power comes from. The lithium batteries need to not be run flat to hard to avoid a Samsung note type explosion.
I totally get what your are saying but I am in a conundrum with my new Flex Volt batteries not working on my genuine Dewalt adaptor. Dewalt needs to fix this issue or Waitley is about to sell a shit ton of adaptors over Dewalt.
If I use a Bauer battery with the 20$ amazon adapter to power my Ryoby tool, will I still run the risk of depleting the battery too much? Or in this case because it's Ryoby I'm fine? Thank you very much for the help, truly appreciate!
Now my question is, if all the tools you're trying to swap batteries with are all new, is this really an issue? It seems your video is directed towards using newer batteries on old tools, such as the genuine dewalt adapter you have in the video. But if most modern 20v tools have protections built into the tool itself, then it would not matter if I'm trying to adapt a dewalt battery to a makita, as long as they are both 20v and built within a couple years?
Yes and no. In some cases, the protection within the tool, relies on data from the pack to cut out, which is why the pack has more than two, positive and negative, contacts to begin with.
Thank you so much! Spent hours in 2019 trying to find some definitive answers about this and came up empty handed. You've answered all my questions and more.
Or the most basic thing could be unconnected, the temp sensor, which allows the tool to know it's about to over heat the battery and stop before that happens.
Would you know whats the best way to use dewalt 40v on a dewalt 20v drill? as in if theres converters or if its possible to buy a battery housing unit and covert it to connect to a 40v battery?
you are right.however, I have not seen any adapters that have any circuitry in them. If you know of any please post it. I use dewalt 20vmax batteries to run my ryobi glue gun. I am going to design a circuit that warns me when the battery drops to a certain level so it does not over discharge and add to the adapter. yes, because I have ruined a couple of batteries already. beep beep beep - swap your battery!
I have some 12 volt dewalts that I don't use that much and like the 18 volt ones don't want to throw away as they have a lot of life left in the tool but seldom used batteries go bad. OK I'm getting to it. Why don't they make a 12 volt adapter Like the 18? What low voltage cut off can I use to make my own? Can I salvage one out of a used 12 volt lion tool?
There are no genuine adapters if going from a dewalt battery to a rigid tool for example. At best you can swap out for a freshly charged battery before you get too low on a battery. But yea good info. I will say this you can get a harbor freight grinder for 40 bucks versus 140 for a dewalt. That will make get adapters.
So some if we simply connected the remaining 2 pins so that the battery can communicate with the tool, should be sweet unless they won't talk? Isn't it just a standard bms?
@@hachi-rokuperformancegroup3987 i have the dewalt branded one (dca1820) works great with my dc835 recipicating saw, which has a high power draw and it works with the 18v hammer drill. Mine has heavy abuse becuase I use it almoast daily (not so much anymore) but one thing i did notice with the saw is the battery life is not long. It works with the premium batterys, xr batterys, I dont know about flex volts though. It shuts off when the battery drains to about 10% (makes sure its not too discharged). In genral I would reccomend the dca1820.
Hey Boss Please advise If i make adaptor from ryobi to flex car polisher . Use handle from ryobi and then original flex battery to make adaptor ? Will this adaptor cope long term , heavy duty use ? Polishing cars all day for example ? Thanks and subscribed
If you polish cars all day, i recommend you buy a milwaukee car polisher and use milwaukee 8Ah or 12Ah batteries. Flex polisher only runs 5 minutes on a 5Ah 18v battery. You *can* use Ryobi batteries with flex 18v tools (but not 24v ones) as long as you use 12Ga wire in your adapter and good quality contacts.
Ok, but when you use the correct 1820 Dewalt adapter for your old NiCad Dewalt Sawzall with a 20v Lithium Dewalt battery and it only works for 10 seconds and then refuses to work for any more than 1 second at a time, what is a guy to do? Is it not ok to buy a cheap Amazon adapter so you can use your old Sawzall again? I don't understand your point about charging the batteries though. You don't use the adapter when charging. You would use the Dewalt Lithium charger for the Lithium batteries and then plug them onto the adapter for the NiCad tools. The reason I am even commenting and asking is because I want to use my old beat up NiCad tools at the wrecking ward without trashing my newer Dewalt tools. Am I missing something?
My point about charging was people slapping 20v on plus and minus terminals bypassing the balancer. I never said anything about charging THRU the adapter.
Craftsman stopped making the C3 19.3 batteries. If you want even used ones on eBay be prepared to pay $150 for a battery. Amazon sells a DeWalt tonC3 adapter. Now since you've scared the crap out of me, do you have a recommendation for a good adapter to C3? The aftermarket C3 batteries are garbage.
Thanks for providing this information. What would be helpful is to list the type of tool brands which are safe to use the convertable adapters. I believe you are suggesting that DeWalt, Milwaukee and Makita all have low voltage battery protecton technology built into the tool rather than the battery so using a convertable adapter would work with those tool lines. Is that correct?
The circuit that decides that the battery is "low" is in the battery. The transistors that cut the battery off when its low is in the tool. Both the battery and the tool have have its own microcontroller, and they talk over the system management bus - the extra pins beside +/-. These are not dumb "no/no go" circuits. So there is NO adapters that prooerly stitch 2 brands together, other than maybe old makitas. Older makita LXT tools have dumb low volrage cutoff, so you can probably use dewalt/milwaukee packs on makita tools.
I want to use my old nicad tools till they're wore out without buying nicads that sit at home and go bad. No one makes a 12volt adapter. I called dewalt tech and they told me the 12volt batteries have discharge protection built in the batteries. I was going to cut off the receiver on a bad 12v lion tool and attach it to the top dick part of a bad nicad so I can use the lions. I know not to use the adapter for charging. Why don't they make a 12v adapter?
They dont. They have charge balancers, but low voltage disconnect is in tools because there is no sense of duplicating MOSFETs for switching. You are talking out of your ass. In modern tools BMS is spread between the tool and the battery pack. Only exception is Ryobi and Makita.
@@drcpaintballHave you seen the Dyson Cordless Vacuum adapters? Those seem to be more intelligent with the low voltage disconnect. I've debated getting and gutting and using the BMS with battery connector side in homebrew adapters using old battery cases carved to fit my tool batteries, DeWalt and Bauer both 20V US.
Thaks for the info. I was wondering about the low voltage protection in my Metabo battery. Because I want to use it with my Makita gear. But maybe that Metabo battery has that low voltage protection because atleast my Metabo drill has only 4 contacts + , - , T+ , T- so the fifth D contact is not connected. I think that those T+ and T- are temp sensor so the battery must have that low voltage cut-out inside its BMS PCB - I think... 🤔 Edit: I got info that Metabo batteries do not have over voltage or under voltage protection if only +/- contacts ate used. So apparently my Metabo drill (with no D contact) does not have under voltage cut-out. I did not know this because I have always kept it above one bar charge.
all these "expert" commenters. Im still at a loss of what to do. This viedo seems to be right on with why to buy dewalt brand. My son is a contractor and years ago he told me not to buy the non brand batteries. This was just before the change DeWalt made in their tools.
Thanks for the explanation. Was going to try and rig up a 20V DeWalt battery directly to a drill and your video helped me realize that's not a good idea. Glad there's people like you out there that can actually provide useful information and be helpful. Any thoughts on trying to use the 18V to 20V adapter on a old DeWalt 14.4V drill?
@@h0udinl Yeah, seems a buck converter module or old school regulator might do. Reminds me I need to do more work on my Black and Decker 18V tool adapter and the method for the Bauer 20V batteries for both the 18V and a similar resistor and 7812 voltage regulator for the 20V tools where I am using an old DeWalt 20V battery pack case carved to fit the Bauer battery.
Thanks for good information, I have Metabo drill 18v with 4 pole, and can't find battery for it, how connect it external adapter, I connect positive and negative but not work
Because you will not see a significant slowdown untill its too late, because brushless motor driver will keep increasing current to the motor to maintain programmed RPM, until the battery is drained too deep and can no longer source the needed current, dumbass.
JUST BOUGHT THE DEWALT 20V DA POLISHER. I ONLY HAVE ONE 9AH 60V FLEXVOLT BATTERY (RUNS POLISHER PERFECT, JUST TOO HEAVY). I WAS GOING TO BUY AN ADAPTER FOR MY M18 HIGH OUTPUT 3.0AH 21700 CELL BATTERIES (I HAVE TWO). THE ADAPTER IS $35 (AMAZON), AN OEM DEWALT HIGH DRAIN (21700 CELL) 4.0AH BATTERY IS $45 (EBAY, NEW AND SEALED). SO, DOES IT MAKE SENSE TO RISK DAMAGE TO TOOL OR BATTERIES TO SAVE $10? WHAT ABOUT THE RISK OF A FIRE? THE GUY THAT MADE THIS VIDEO KNOWS WHAT HE TALKING ABOUT. HE IS NOT YOUR DADDY, OR YOUR MOMMY GIVING YOU LECTURES. HE IS A SMART GUY WITH MORE KNOWLEGE ON ELECTRONICS THAN MOST OF US WHO IS JUST PASSING ON SOME OF HIS WISDOM. THANK YOU SIR FOR MAKING THIS VIDEO AND 1) SAVING ME POSSIBLE AGGREVATION. 2) HAVING PEACE OF MIND I'M NOT DESTROYING TOOLS/BATTERIES BY NOT USING THE ADAPTER.
I added a low voltage disconnect switch to one of these adapters...would be interested in your feedback on my how-to-video on that...just check my channel.
So you did it right, the only issue is, drills can draw up to 30A under heavy loads such as hole saws, and the relay on that boars, and traces on the pcb might get really hot at 30A, as i don't think they are rated for 30A continuous
The information provided here is not entirely correct. Makita batteries ARE internally protected, see for instance this video by Project Farm: th-cam.com/video/4OkT_SU6GSg/w-d-xo.html
NO. The battery in Project Farm video is a MAKSTAR battery. Not ALL Makita batteries have MAKSTAR BMS and have low voltage cutoff. Only MAKSTAR batteries have integrated MOSFETs for low voltage cutoff, most kits comes with non-Makstar batteries and rely on the tool.
@@drcpaintball What you call a Makstar battery is a standard LXT 18V battery with the charge indicator that they've been selling for years. All new Makita 18V batteries, at least those of 4 Ah and up, look like this. However, in another comment here under this video you write that it's the OLDER Makita batteries that have the "dumb" protection as you call it. You apparently made a mistake in this video, that happens, nothing to worry about. Why not just admit it instead of insisting on giving people false information?
does that mean that makita batteries with a star would be the safest brand to use with an adapter? I bought an adapter to use my 5.0 makita batteries with the ryobi glue gun and so far the tool shuts down when the battery is low enough without continuing to draw current from the battery. I am assuming that is the battery protection kicking in, so should I have to worry about over-discharging the battery at all or will the star-protection keep working as intended when using the adapter?
@@MichaelMoore-dw7ft As I understand it, have seen others test and use it, and I use it myself, then yes, you are correct in your assessment. Newer style Makita star batteries protect themselves and are safe to use with adapters. Pretty much the only one I have found that disagrees is actually the creator of this video. That being said, this is not legal advice and I do not work for Makita, so you must of course make your own choices, but it does sound like you're on the right track. Best of luck in your endeavours.
See if wiring the bms pins to the tool enable them to talk and then no low voltage cut off will need to be added, not sure if all tools and battery monitoring systems will communicate but I wouldn't be surprised if all umbrella brands are cross compatible (ie dewalt, stanley, black and decker etc are one umbrella) plus im sure one manufacturer will be supplying a ton of companies the same bms from China or Taiwan...
Thanks for the info but if you are buying cheap alternatives obviously you must do your homework, unless your battery has a meter like Milwaukee or makita they you gotta be really careful not to run your battery too low. Buy alternatives at your own risk. 😊 btw you cannot charge the batteries with the adaptors.
why most of you youtubers so discriminating?! WHERE IS THE BLACK AND DECKER LOVE?! I HAVE A FEW BLACK AND DECKER POSTS BATTERIES TYPE IN THE 15.6V I WOULD LIKE TO USE MY MAKITA BATTERIES IN???? ANY BLACK AND DECKER BATTERY ADAPTERS TO USE MAKITA BATTERIES?
I'd spend more money on proper adapters instead of the cheapo ones but proper adapters don't exist.
Unfortunately it doesn't convince me, unless makita, dewalt and milwaukee will make a universal battery, or an adapter that'll work for all of them. I'm not buying a $100 a piece dewalt or milwaukee battery, just so I can keep them around for the guys I work with to use :/.
Whitely on Amazon dude. Good stuff.
Yes
It helped a lot
My situation usually boils down to “If you have the money, you can buy it. If you don’t, you can learn how to make it without or make it yourself.”
And I’m a combination of frugal and poor 😂
Thank you for providing us with this very important information!! I just saw reviewers on amazon showing how the Waitley adapter melted with continuous use.
Don't listen to this person, those cheap adaptors are fine if you have common sense, if your dumb keep paying the tool companies extortionate prices for batteries
This guy makes me feel like I'm being lectured by my father.
Thank you so much! Spent hours in 2022 trying to find some definitive answers about this and came up empty handed. You've answered all my questions and more.
That depends how much is the usage of the tool. If you use in home projects I do not think you will over use your battery that much to discharge it beyond charging. If you are professional and working every day with these tools it make sense do not have adapters at all. If you have like me 10 drills collected in the last 20 years and some of the NiHibrid batteries died, just go ahead and buy batteries adapters for them.
You only need to overdischarge it ONCE. The BMS goes into lockdown and the battery is now dead.
Yeah... That's why I chose Makita as my main tools/batteries and I adapt them to everything else when needed. It's moronic to have the low battery cut off, overheat protections etc, inside the tool instead of inside the battery. I also have battery "adapters" that just give me two wires to use with whatever I like.. I use them for everything from soldering irons to RC cars to AC power inverters. When the battery gets low, or too hot, it shuts itself off not matter what my application is., Makita also has fantastic chargers (although I had to go with a 3rd party to find a super-portable/small one). They're really the only company doing batteries right.
I believe Ridgid/AEG does this too
I see nothing wrong with using them if you're aware of these issues.
I'd never use one in a tool that just stays on, like a flashlight or a sander.
But on most power tools like drills and saws, you're going to notice the lack of power from the voltage drop long before the cells get to any dangerously low level.
Likewise you should be paying attention to heat from either the tool or the battery.
I'm using batteries that have their own 3-bar LED and I tend to take them off adapters once they're at one bar.
I'm tempted to add a voltage screen to adapters in the future.
As someone else said, this is really a problem with Dewalt's battery design more than adapters as a concept. The cell protection should be in the battery pack, like with Makita.
You have layman's understanding on what is involved in battery protection and very naive idea of why batteries are designed the way they are. Dewalt/Milwaukee does not have LVD in batteries because high power batteries will require expensive MOSFETs with massive heatsinks to handle high currents, and will get very hot. Also, under heavy loads it's very easy to miss the cutoff voltage as the cell discharge is very nonlinear. Risking a $100-250 battery to run a crappy $50 old tool is stupid.
@@drcpaintball I definitely value your expertise here but for what I use adapters for and my general low- intensity tool use I'm still unconcerned. If I was a contractor using the tools consistantly and constantly swapping batteries I would of course use all the same branded batteries with their tools.
But I'm talking about how every once in a blue moon I need to cut some sheetrock with the oscilating tool, so I use my 5ah dewalt battery with my cheap craftsman oscilating tool, for 15 minutes. Nothing you've said has convinced me that this is dangerous or harmful to the battery.
Like I said, I don't use my adapters when they're down to 1 bar. Plenty of juice left, nowhere near the cutoff. The tools I buy cheap versions of and use adapters for are all tools that see very little use.
If the reason Dewalt and Milwaukee don't put the protections in the battery is cost, why does makita do it, and how can they maintain competetive prices?
As for risking a $100 on a $50 tool being stupid, sure I guess. But if it would have cost $150 for the big brand tool that I rarely use, the savings is easily worth the risk. If, and to me this is a big if, I have to replace the $100 battery, I've still spend the same. More likely I'll get a free battery or free tool down the line in one of those bundles. The risk is minimal and eventual. The savings is immediate and significant.
@@caramelzappa it's not about costs, it's about locking people into a proprietary system so you have 'captured' a customer base.
You really think they *need* a new battery system every few years? They do not. They change the design for force upgrades. The motor does not care where the power comes from.
The lithium batteries need to not be run flat to hard to avoid a Samsung note type explosion.
@@blatantmisconception bro this comment thread is 9 months old
@@caramelzappa and?
Would you suggest me investing in an adapter that converts 18/36v hikoki batteries to 18v AEG powertools
I totally get what your are saying but I am in a conundrum with my new Flex Volt batteries not working on my genuine Dewalt adaptor. Dewalt needs to fix this issue or Waitley is about to sell a shit ton of adaptors over Dewalt.
I actually burnt a brand new 5ah dewalt battery with one of these cheap adapters, I opened it up and it was the polarity been crossed wired.
If I use a Bauer battery with the 20$ amazon adapter to power my Ryoby tool, will I still run the risk of depleting the battery too much? Or in this case because it's Ryoby I'm fine? Thank you very much for the help, truly appreciate!
Yes it may kill you bauer battery. Ryobi batteries have a low voltage shutoff in the battery itself. Bauer battery relies on the tool.
@@drcpaintball Great, thank you so much for making this clear to me.
Now my question is, if all the tools you're trying to swap batteries with are all new, is this really an issue? It seems your video is directed towards using newer batteries on old tools, such as the genuine dewalt adapter you have in the video. But if most modern 20v tools have protections built into the tool itself, then it would not matter if I'm trying to adapt a dewalt battery to a makita, as long as they are both 20v and built within a couple years?
Yes and no. In some cases, the protection within the tool, relies on data from the pack to cut out, which is why the pack has more than two, positive and negative, contacts to begin with.
Thank you so much! Spent hours in 2019 trying to find some definitive answers about this and came up empty handed. You've answered all my questions and more.
Or the most basic thing could be unconnected, the temp sensor, which allows the tool to know it's about to over heat the battery and stop before that happens.
Would you know whats the best way to use dewalt 40v on a dewalt 20v drill? as in if theres converters or if its possible to buy a battery housing unit and covert it to connect to a 40v battery?
you are right.however, I have not seen any adapters that have any circuitry in them. If you know of any please post it. I use dewalt 20vmax batteries to run my ryobi glue gun. I am going to design a circuit that warns me when the battery drops to a certain level so it does not over discharge and add to the adapter. yes, because I have ruined a couple of batteries already. beep beep beep - swap your battery!
I have some 12 volt dewalts that I don't use that much and like the 18 volt ones don't want to throw away as they have a lot of life left in the tool but seldom used batteries go bad. OK I'm getting to it. Why don't they make a 12 volt adapter Like the 18? What low voltage cut off can I use to make my own? Can I salvage one out of a used 12 volt lion tool?
Thanks for the information...because sometime the cost to buy bateries is expensive .
There are no genuine adapters if going from a dewalt battery to a rigid tool for example. At best you can swap out for a freshly charged battery before you get too low on a battery. But yea good info.
I will say this you can get a harbor freight grinder for 40 bucks versus 140 for a dewalt. That will make get adapters.
If I was to buy a dewalt battery to ryobi adapter and rig it for Bauer batteries would I hurt my tools or just the cheap Bauer batteries?
So some if we simply connected the remaining 2 pins so that the battery can communicate with the tool, should be sweet unless they won't talk? Isn't it just a standard bms?
There is no such thing as "standard" BMS. Both Dewalt and Milwaukee use SMBus but the command set is cimpletely different
the fact is, there is no proper adapter for cross brand such as milwaukee to dewalt or vice versa!
I purchased a cheep adapror, 5min of use it caught fire. No damage was done to my dewalt tool or battery.
Yeah I'm coming to the conclusion it's cheaper to buy a couple extra batteries than new tools and battery
@@hachi-rokuperformancegroup3987 i have the dewalt branded one (dca1820) works great with my dc835 recipicating saw, which has a high power draw and it works with the 18v hammer drill. Mine has heavy abuse becuase I use it almoast daily (not so much anymore) but one thing i did notice with the saw is the battery life is not long. It works with the premium batterys, xr batterys, I dont know about flex volts though. It shuts off when the battery drains to about 10% (makes sure its not too discharged).
In genral I would reccomend the dca1820.
Hey Boss
Please advise
If i make adaptor from ryobi to flex car polisher .
Use handle from ryobi and then original flex battery to make adaptor ?
Will this adaptor cope long term , heavy duty use ?
Polishing cars all day for example ?
Thanks and subscribed
If you polish cars all day, i recommend you buy a milwaukee car polisher and use milwaukee 8Ah or 12Ah batteries. Flex polisher only runs 5 minutes on a 5Ah 18v battery. You *can* use Ryobi batteries with flex 18v tools (but not 24v ones) as long as you use 12Ga wire in your adapter and good quality contacts.
Ok, but when you use the correct 1820 Dewalt adapter for your old NiCad Dewalt Sawzall with a 20v Lithium Dewalt battery and it only works for 10 seconds and then refuses to work for any more than 1 second at a time, what is a guy to do? Is it not ok to buy a cheap Amazon adapter so you can use your old Sawzall again? I don't understand your point about charging the batteries though. You don't use the adapter when charging. You would use the Dewalt Lithium charger for the Lithium batteries and then plug them onto the adapter for the NiCad tools. The reason I am even commenting and asking is because I want to use my old beat up NiCad tools at the wrecking ward without trashing my newer Dewalt tools. Am I missing something?
My point about charging was people slapping 20v on plus and minus terminals bypassing the balancer. I never said anything about charging THRU the adapter.
Craftsman stopped making the C3 19.3 batteries. If you want even used ones on eBay be prepared to pay $150 for a battery. Amazon sells a DeWalt tonC3 adapter. Now since you've scared the crap out of me, do you have a recommendation for a good adapter to C3? The aftermarket C3 batteries are garbage.
Thanks....gonna buy this adapter and combine it with a m18 battery to accept dewalt 20v batteries.
I wonder if u can customize these adaptors to fit and work on a 12v dewalt drill 🤔🤔🤔
You can if you use m12 batteries and a low voltage disconnect board. 20v battery will burn 14.4v motor quickly
Thanks for providing this information. What would be helpful is to list the type of tool brands which are safe to use the convertable adapters. I believe you are suggesting that DeWalt, Milwaukee and Makita all have low voltage battery protecton technology built into the tool rather than the battery so using a convertable adapter would work with those tool lines. Is that correct?
The circuit that decides that the battery is "low" is in the battery. The transistors that cut the battery off when its low is in the tool. Both the battery and the tool have have its own microcontroller, and they talk over the system management bus - the extra pins beside +/-. These are not dumb "no/no go" circuits. So there is NO adapters that prooerly stitch 2 brands together, other than maybe old makitas. Older makita LXT tools have dumb low volrage cutoff, so you can probably use dewalt/milwaukee packs on makita tools.
I want to use my old nicad tools till they're wore out without buying nicads that sit at home and go bad. No one makes a 12volt adapter. I called dewalt tech and they told me the 12volt batteries have discharge protection built in the batteries. I was going to cut off the receiver on a bad 12v lion tool and attach it to the top dick part of a bad nicad so I can use the lions. I know not to use the adapter for charging. Why don't they make a 12v adapter?
Most of the tool batteries you can buy today whether its a cheap or expensive they have built in bms protection board inside.
They dont. They have charge balancers, but low voltage disconnect is in tools because there is no sense of duplicating MOSFETs for switching. You are talking out of your ass. In modern tools BMS is spread between the tool and the battery pack. Only exception is Ryobi and Makita.
@@drcpaintballHave you seen the Dyson Cordless Vacuum adapters? Those seem to be more intelligent with the low voltage disconnect. I've debated getting and gutting and using the BMS with battery connector side in homebrew adapters using old battery cases carved to fit my tool batteries, DeWalt and Bauer both 20V US.
Dewalt told me that their adapter does not have a cutoff for low voltage. Does it?
It does, its right in the video
Thaks for the info. I was wondering about the low voltage protection in my Metabo battery. Because I want to use it with my Makita gear. But maybe that Metabo battery has that low voltage protection because atleast my Metabo drill has only 4 contacts + , - , T+ , T- so the fifth D contact is not connected. I think that those T+ and T- are temp sensor so the battery must have that low voltage cut-out inside its BMS PCB - I think... 🤔
Edit: I got info that Metabo batteries do not have over voltage or under voltage protection if only +/- contacts ate used. So apparently my Metabo drill (with no D contact) does not have under voltage cut-out. I did not know this because I have always kept it above one bar charge.
all these "expert" commenters. Im still at a loss of what to do. This viedo seems to be right on with why to buy dewalt brand. My son is a contractor and years ago he told me not to buy the non brand batteries. This was just before the change DeWalt made in their tools.
Why not show us inside the Chinese adapter ?
My recip saw burned after using the adapter but it was the old saw. I am trying the adapter in an XPR.
RIDGID batteries have all protection build in the battery.
Thanks for the explanation. Was going to try and rig up a 20V DeWalt battery directly to a drill and your video helped me realize that's not a good idea. Glad there's people like you out there that can actually provide useful information and be helpful. Any thoughts on trying to use the 18V to 20V adapter on a old DeWalt 14.4V drill?
You can but it will run too fast and very hot, 20v is too high for 14.4v motor
@@drcpaintball wouldn’t you just add a voltage step down
@@h0udinl Yeah, seems a buck converter module or old school regulator might do. Reminds me I need to do more work on my Black and Decker 18V tool adapter and the method for the Bauer 20V batteries for both the 18V and a similar resistor and 7812 voltage regulator for the 20V tools where I am using an old DeWalt 20V battery pack case carved to fit the Bauer battery.
Is there a reason why the adapter wouldn't work on flexvolt?
Great info! Thanks for sharing!
Thanks for good information, I have Metabo drill 18v with 4 pole, and can't find battery for it, how connect it external adapter, I connect positive and negative but not work
What model?
@@drcpaintball metabo D-72622
@@ibrahemahmed9328 i recommend you sell the drill and buy Milwaukee m12 drill
What about the Dewalt brand adapter?
Looking for a craftsman 18v to lithium battery adapter
the craftsman 18v tools will use the craftsman lithium batteries straight up.
I always add a pint of gas to my cordless tool, that way if she goes up…she really takes care of business…..
Thanks for being the adult in the room on this subject.
Gee, why not keep any eye on the tool performance and when it slows down - stop using it.
As far as charging the pack , just use the original charger.
Because you will not see a significant slowdown untill its too late, because brushless motor driver will keep increasing current to the motor to maintain programmed RPM, until the battery is drained too deep and can no longer source the needed current, dumbass.
JUST BOUGHT THE DEWALT 20V DA POLISHER. I ONLY HAVE ONE 9AH 60V FLEXVOLT BATTERY (RUNS POLISHER PERFECT, JUST TOO HEAVY). I WAS GOING TO BUY AN ADAPTER FOR MY M18 HIGH OUTPUT 3.0AH 21700 CELL BATTERIES (I HAVE TWO). THE ADAPTER IS $35 (AMAZON), AN OEM DEWALT HIGH DRAIN (21700 CELL) 4.0AH BATTERY IS $45 (EBAY, NEW AND SEALED). SO, DOES IT MAKE SENSE TO RISK DAMAGE TO TOOL OR BATTERIES TO SAVE $10? WHAT ABOUT THE RISK OF A FIRE? THE GUY THAT MADE THIS VIDEO KNOWS WHAT HE TALKING ABOUT. HE IS NOT YOUR DADDY, OR YOUR MOMMY GIVING YOU LECTURES. HE IS A SMART GUY WITH MORE KNOWLEGE ON ELECTRONICS THAN MOST OF US WHO IS JUST PASSING ON SOME OF HIS WISDOM. THANK YOU SIR FOR MAKING THIS VIDEO AND 1) SAVING ME POSSIBLE AGGREVATION. 2) HAVING PEACE OF MIND I'M NOT DESTROYING TOOLS/BATTERIES BY NOT USING THE ADAPTER.
@Womb Raider DEAR MR. WOMB, WHEN WE GIVE YOU THE WORD, YOU "WILL" DO WHAT WE SAY.......DO IT!!!......NOW!!!
I added a low voltage disconnect switch to one of these adapters...would be interested in your feedback on my how-to-video on that...just check my channel.
So you did it right, the only issue is, drills can draw up to 30A under heavy loads such as hole saws, and the relay on that boars, and traces on the pcb might get really hot at 30A, as i don't think they are rated for 30A continuous
@@drcpaintball Thanks for the feedback!
The information provided here is not entirely correct. Makita batteries ARE internally protected, see for instance this video by Project Farm: th-cam.com/video/4OkT_SU6GSg/w-d-xo.html
NO. The battery in Project Farm video is a MAKSTAR battery. Not ALL Makita batteries have MAKSTAR BMS and have low voltage cutoff. Only MAKSTAR batteries have integrated MOSFETs for low voltage cutoff, most kits comes with non-Makstar batteries and rely on the tool.
@@drcpaintball What you call a Makstar battery is a standard LXT 18V battery with the charge indicator that they've been selling for years. All new Makita 18V batteries, at least those of 4 Ah and up, look like this. However, in another comment here under this video you write that it's the OLDER Makita batteries that have the "dumb" protection as you call it. You apparently made a mistake in this video, that happens, nothing to worry about. Why not just admit it instead of insisting on giving people false information?
does that mean that makita batteries with a star would be the safest brand to use with an adapter? I bought an adapter to use my 5.0 makita batteries with the ryobi glue gun and so far the tool shuts down when the battery is low enough without continuing to draw current from the battery. I am assuming that is the battery protection kicking in, so should I have to worry about over-discharging the battery at all or will the star-protection keep working as intended when using the adapter?
@@MichaelMoore-dw7ft As I understand it, have seen others test and use it, and I use it myself, then yes, you are correct in your assessment. Newer style Makita star batteries protect themselves and are safe to use with adapters. Pretty much the only one I have found that disagrees is actually the creator of this video. That being said, this is not legal advice and I do not work for Makita, so you must of course make your own choices, but it does sound like you're on the right track. Best of luck in your endeavours.
I know this post is old but you seem to know your shit. Really don't want to invest in a new battery, Badaptor Makita to Ryobi any good?
where I can find the genuine battery adapter for my old Hitachi to makia
Ebay
I'm gonna be buying a milwaukee to ryobi adapter and adding in a low voltage cut off.
If you used Makita batteries for everything and just adapted to whatever you need you wouldn't have to hack them yourself..
See if wiring the bms pins to the tool enable them to talk and then no low voltage cut off will need to be added, not sure if all tools and battery monitoring systems will communicate but I wouldn't be surprised if all umbrella brands are cross compatible (ie dewalt, stanley, black and decker etc are one umbrella) plus im sure one manufacturer will be supplying a ton of companies the same bms from China or Taiwan...
Yeap! That's why bosch batteries have a simple pcb inside.
Just don't run them completely dead...
Show us the tear down on the cheap adapters, you didn't show us anything.
thanks. i was about to buy a cheap usb charger
Good information, thanks for sharing
Where do you get proper adapters?
He wants you to use expensive batteries, not cheap adapters.
I don't know if he's getting paid to say that.
@@jerrymcg3199 i do not get paid for anything. I am not sponsored in any way.
Thanks for sharing 😃
Thanks for the info but if you are buying cheap alternatives obviously you must do your homework, unless your battery has a meter like Milwaukee or makita they you gotta be really careful not to run your battery too low. Buy alternatives at your own risk. 😊 btw you cannot charge the batteries with the adaptors.
th-cam.com/video/rEB6YTbP68s/w-d-xo.html
You can do it... once
Don’t tell me what to do
Very good information 👌
Where are legit adsptors?
Home depot
the adapters only for working with the device not for charging!
charging should with the original charger from the battery without adapters !
a mosfet is not a transistor its a conducter
Do you know what T in MOSFET stands for? Metal Oxide Semiconductor Field Effect TRANSISTOR.
why most of you youtubers so discriminating?!
WHERE IS THE BLACK AND DECKER LOVE?!
I HAVE A FEW BLACK AND DECKER POSTS BATTERIES TYPE IN THE 15.6V
I WOULD LIKE TO USE MY MAKITA BATTERIES IN????
ANY BLACK AND DECKER BATTERY ADAPTERS TO USE MAKITA BATTERIES?