Tool Batteries: More Ah = More Power!?!
ฝัง
- เผยแพร่เมื่อ 12 ก.ย. 2024
- Dealing with the comments I get all the time "You should of used a 6.0Ah battery it has way more power than the 3.0Ah" & "That test wasn't fair, one tool had a 4.0Ah battery, the other one has a 5.0Ah"
The other guy in the video / @takamiwoodshop
The Impact amzn.to/3eAjB4X
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Check out my other videos for reviews of Makita, Hilti, DeWalt, Bosch, Hitachi, Ryobi and more... As well as build projects and the odd random thing.
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Try the same power test with an angle grinder :)) And you will see the difference.
Higher amp-hour batteries get less stress under load (so you don’t burn out a battery as fast), and can deliver maximum performance longer. That’s it.
Yup. Just sometimes the maximum performance demand is too big for smaller batteries to begin to do the job.
Two 1500 samsung 15m's parallel will allow more amps pulled from a source than one samsung 3000mah 30q .
As a drone maker and flier, here's how this whole battery thing works: the 3ah makita batteries were the original high discharge batteries meant for power gobbling brushed tools like the original LXT circular saw which I still have. The newer batteries like the 4ah+ were thought to have a lower discharge rate and thusly they were locked out from use in the original LXT set, Via a small tab that can be cut off. A normal 4-6ah makita battery has 10 18650 cells, any pack with only 5 cells (smaller) will not have that same discharge capacity regardless of ah. The modem 4-6ah batteries can handle the high discharge that the 3ah can because all makita batteries have a temp sensor for safety of the battery and the house. A 6ah battery should in theory be able to screw in twice as many screws as a 3ah, because it has twice the juice, think of a gas tank twice the size but nothing else is different, the engine could run longer but not have more horsepower.
My understanding was that the tab was on the 4Ah+ batteries due to the fact they had the overheating protection in them. Makita had a lot of problems with tools and batteries "melting down". To overcome this they modified the batteries and tools so they could communicate overload/overheating and shut down. To prevent people using the new batteries (with the star) on old tools (without the star) the tab came into play so people didn't destroy a new battery thinking it would cut out, when it won't because the old tool didn't know what to do. I know that a 6 should run twice as long as a 3, that was never the question. I used that as a thumbnail as it was way to hard to express the real reason for this video, which is the constant barrage of abusive comments from people saying higher amp hour batteries have "more power", not longer run times.
So many claim that higher Ah batteries can do way more. drive bigger screws, cut thicker wood, etc, etc. I wanted to show it makes toss all difference. The text at the beginning was due to most of these comments coming from DeWalt and Milwaukee fanboys who claim Makita tools will never be as powerful because the batteries only go up to 6Ah. Thanks for your comment.
It's been way too many years since I've cracked my EE books, but I have noticed a difference between the new batteries and the original old ones (without the "charge indicator"). My personal opinion is that the newer design's have less internal resistance or better battery chemistry and therefore can provide a bit more current that the older ones. The voltage is immaterial as the tools use a nominal voltage of 18v so it can range from roughly 20v to 16v and still work. The key is current for electromotive force I.E. it's current that gives the tool "oomph". That's as far as I'm going as my brain hertz now... All I know is the damn things work well with the new battery chemistry and new batts. Lol
Solid comment that one ✅
"my brain hertz" I caught that. Haha!
Internal battery resistance is key. It indicates how much power is lost in the battery as heat. Bigger capacity cells tend to be newer technology with lower internal resistance, thus less internal power loss meaning more power for the tool. Also the 1.5 and 2 Ah cells have one row of batteries, 3 Ah and up have 2 rows halving the internal resistance.
Bigger and smaller cells, both can have high and low impedance, that depends on how they're designed/manufactured. But yeah, twice the amounts of cells will have easier time providing amps.
The only time I'd expect to see a real noticeable difference in power output is between a 5 cell battery @18v and a 10 cell battery @18v. Regardless of watt hours.
Beyond that I'd expect a noticeable difference between 18650 celled batteries and 21700 celled batteries.
If you’re comparing between two batteries with the number of cells, wired in the same way, you’re generally going to see lower power delivery with higher capacity and vice versa. It’s a trade off with the cells themselves.
Awesome! Where I found a big difference was my old impact driver. I used an adapter to remove my Subaru lug nuts which were torqued to 95 Nm. The 3AH didn’t remove them. The 5AH did quite easily. Otherwise as you say not massive difference but that was where it was very clear n
Same with mine. More pump when needed on high torque demand.
My skill saw cuts out way more often with my 2ah compared to my 5ah. Haven’t noticed any difference when I used them in my combi drill tho. I think comparing the Watt Hours is a more accurate way of talking about it. 36wh vs 90wh for instance. Great video once again mate.
Curiously seems like the 5Ah performs rhe best. Which matches up with my research so far. The 18650 cells in the 5Ah have the highest discharge amp ratings for all the cells used in the various Ah sizes. The 6ah batteries have cells with a lower max discharge ratings. So if a tool can benefit from more amps, the 5Ah looks to be the best performer for power level.
The difference in low drain tools is negligible. It's not noticeable until the amp draw of the tool approaches/exceeds the amp drain capacity of the battery. I don't think it about Amp/hours as much as the packs cell count. Depending on which cells are used, you shouldn't see much difference between batteries with the same cell count. Packs with 2 rows of cells should be able to deliver twice the amps of a pack with a single row of cells. That basic electricity 101. The battery controller could, however limit this, of course, and cells are getting better all the time. Used to be a rule of thumb that you could have high current or high capacity, but not both, depending on the cell chemistry and construction. That trade off may no longer be valid. You should see a significant difference in tools like circulars saws, especially when heavy ripping wet or treated lumber, larger impact guns, larger drills with large bits, and chainsaws, etc. As long as the tools amp draw is below the single row packs capacity, only the run time should be significantly different. Also, regardless of the advertising, the voltage does drop in lithium ion batteries as they drain. So a larger battery capacity should maintain higher voltage longer, which should translate to higher rpms unless the mosfets and other electronic doodads in the tool are able to trade amps for volts. Or, Makita does magic sorcery to defy the laws of physics. I don't have any single row Makita batteries, so I can't test it on my high drain tools. I only have Makita 5ah packs and most of the Milwaukee sizes. I have been thrilled with the performance, durability, and longevity of both brands. Great batteries.
Volume is way too low, we can't hear what you are saying?
The text is too small. I can't read this comment.😉
@@TakamiWoodshop Your logo's to light, I can't make out what it is. ;)
Very interesting video
One bit of advice, or a request if you like. You sound tok quiet and the tools too loud. Any way to sort that?
I found myself turning the volume up and down throughout the video
It seems that there is a difference between brushed and brushless tools. Also, I have seeen some people saying that the best makita battery is the 5ah, not the 6ah (first test kind of shows). Nice video, thanks for sharing.
I have to agree that the 5s are better. I have noticed on my 18v chainsaw that the 6ah cuts out when still showing 2 bars on the battery, whilst the 5s go right down to the flashing last bar.
The 5ah uses the Samsung 25r cd-20amps 5 second pulse of 45 amps.
The 6ah battery uses the Samsung 30q cd-15amps pulse is lower as well so yeah it will not perform as well when it comes to the big machines,but still does awsome on most common machines.but this statement makes sence.
My understanding is that the high ah batteries have a higher runtime typically, meaning they have more power available. Which means that they can work stronger and harder than smaller batteries, but idk, i don’t understand this stuff
I subscribed after reading a comment by you in in a geographics video and then looking at your channel.
Great channel BTW
Hey, thanks! Welcome aboard.
The reality is that impact drivers pull under 200 watts so thats no where near the max sustained draw an 18v can output.
Most of the time it is 800 watts.
Try the 3, 4, 5 and 6 amps that all have 10 cells in a 5s2p config. The 3, 4 and 5 amp will have cells capable with samsung 25amps capable continous whereas the 6amp may only have 20 amp continuous samsung cells.
Try this test again in a circular saw going down the grain in saw some 8x2 or 6x2.
All makita packs that arent slim packs are great its just how Much you want to spend and how long you want the tool using it to last for.
A 3 amp is lovely in an impact driver but not so much a 5" angle grinder.
The 6 amp is great for the angle grinder and overkill perhaps for an impact driver....
Makita has a lot of small and light tools because there is a market for stuff you can lift over your head for a whole shift. That is why they have small batteries and quite a 12 volt lineup. They are Japanese, they are small and trim, unless they are Sumo wrestlers of course ;-)
Wish I'd have read yours before I typed mine out. HA! You are much better at explaining in fewer words.
Good video thanks
That chainsaw is huge to be using batteries never saw that before.
This really is more of interest with constantly running and torque dependent tools. You get into the falloff stage really fast on smaller capacity batteries, forcing you to cycle and recharge way to often since the voltage dropped so far that the tool only brings on 70% or so of it's nominal power. Technically the batteries are not yet empty, but the loss of power is so massive that you can't do any proper work. In such scenarios, I feel that everything under 3Ah just isn't usable. While 3Ah seems to be the sweet spot for my drills and my small circular saw, 5Ah seems to be a good compromise between use time and charging time for those power hungry devices like lawn mowers, string trimmers, sanders and grinders.
Yes its this ... I notice this with my circular saw, a 1.5 amh will cut the same stuff, but stalls and dies very quickly, my 5 amh, cuts for hours and stalls less.
New to your channel bro and loving the vids man. Love the local trades getting on youtube. Cheer bro and keep it up.
Chur bro, welcome aboard.
Not much in it really, unless like what some other people have said - older batteries can't keep up with the demand that the tool puts on it.
I accidentally threw a Makita compact batt on either my grinder or metal circ (don’t remember which one) the other day and didn’t notice until I pulled it off. I was befuddled and impressed because I definitely would have noticed the performance lag with the other brands I use.
Nice impact driver, I got the same one except all black from Japan
Thanks for doing this. There are so many numpties that see a bigger number and think more power. They even try and argue the point inspite of clear irrefutable theoretical principals and demonstrable evidence. More power to you😁. Cheers.
I get comments from those numpties every day.
@@ToolsAndStuffOFFICIAL are they related to humpties?
Yeah, just a slightly different shape.
Should’ve done it on grinders, they for sure feel way less powerful and my boss says it doesn’t matter even though I used a grinder for 2 years with 6 amp hours so I know a 6 has wayyyyy more power than a 3 . A 3 amp hour stalls wayyyyyy wayyyyy easier and just takes way more time but yeah anyways should have done it on grinders 🤷🏻♂️
Now what's only left is compare 1,5Ah with Makita power backpack with 4x6Ah ;)
Stop using them barbecue brickets…and use real wood barbecue coal instead. It burns hotter, and doesn’t impart that chemical stench to all your food. You’ll get a much nicer sear on your meat, and a much nicer flavor from the real wood coal (don’t confuse it with the wood smoking chips, though you can add them if you want a particular wood smoke flavor).
Shame the battery chargers don't charge to peak voltage. They charge to a high storage voltage.
The extra voltage gain would make a difference too.
Check this out th-cam.com/video/uumwieLu8CE/w-d-xo.html
It looked like the weight of the 6.0 steadied your hand and wonder just how much that contributed to a more efficient drill time.
Wrong. The 3,4,5 and 6 Ah batteries are basically all the same weight.
Wonder why the 5.0 ah battery beat the 6.0 on the speed test on the impact driver?
possibly inside 5a are vtc5a and inside 6a vtc6, 5a chemistry can hold more current.
Parafusadeira de impacto não força tanto a bateria.. A mola interna alivia o torque direto, sobre o motor.
sure you got more umff & torque with higher amp-powered cells if anything else is equal.
if you in doubt, make a DIY cable with one of these RC AMP meters. (cost like 6buck 150A) and put it in between with some high rated silicone wires) and see what amp it affects, but can be numerous other factors that mudder the results, like protection circuits inside the power tool, but generally you will get more torque on a big amp pack than a smaller amp pack.
Do you know what’s cell inside 3.0Ah please?
i have a bosch impact drill 25618 and both bartteries that came with it was bat612 and they don't work at all and i don't understand why. i had it going on 3 years and i only use it once and i never charged them so i heard the battery died and the other one stays with 3 bars showing. so i want to purchase a high output battery for my impact drill
Great video and comparisons.
Have you ever tried the aftermarket 9ah batteries are they any good?
You are welcome to try them. But the vast majority of reviews on them go like this. Charge and 1st run, "These are awesome! I saved so much money!" The following month, "The run time has dropped off a lot." Or, "Maybe I should just use these in lights." Then, "I charged that battery just yesterday and it only has 2 bars this morning." And finally, "That battery pack I got a couple months ago won't charge now."
Good luck, you'll need it. Caveat emptor!
My old man is a fencing contractor. He is all ways driving the 150mm and 200mm batten screws with his Milwaukee impact driver and it gets bloody hot. Would a 1/2’ rattle gun be any better?
I am going to do a video on that shortly. As soon as I get a 40v Makita battery for my impact driver.
It would take longer, but wouldn’t get as hot, I think.
I like the purple
Good vídeo ,👏🏼👏🏼👏🏼👏🏼galera do Brasil vindo prestigiar ...
Ferramentas em ação. . . Tmj
Bel video, complimenti 🏆
hope you make video comparison made by china. japan. Singapore. Vietnam. I know what makes his board different. because in our country. we no longer know what original battery
Большое спасибо, было познавательно
if your doing things that require alot more torque you will notice the power difference.
Does someone have disassembled and compared battery 5 and z 6 ah?
What!? So just few seconds for $$$ more? Or did miss anything 🤔
Watch until the end.
1.5 versus sex? You kiwis.
I want that purple, but I don't know anyone that in china
It's not from China.
@@ToolsAndStuffOFFICIAL ... How can I get it, then?
ebay.us/pBl79u This is the newly released and only available in Japan one. Get in quick... one left
My batteries got fucked had 2x1.5 Ah
But my driller broke pickup ran over my bag and it was in it)
I inserted my battery to see if it still worked and that broke my battery.
Good safety messures tho it didint blow up in my hand it overheated.
No, more cells in parallel means more power
Wrong copmarison.capacity(Ah or mAh) shows the time that battery can provides a specifuc amount of current.but the torqe of a motor equal to voltage ×current.but low capacity battery voltage drops faster than a high capacity battery so after wile the low cap battery can deliver lower amont of power.so Ah of a battery×its nominal voltage is equal to its storage energy but for example 2 Ah battery can provide 2 amps in 2 houres.
Wouldn't that be 4ah? A 2ah battery should deliver 2amps for 1 hour or 1amp for 2 hours. Yes?
@@mikemorgan5015 1hour
Normal drill driver would do it much faster
You've missed the point.
What's the weght of the 2Ah?