What a great diy video! You even went to the trouble of making a parts list with links. Very professionally done. I'm new to your channel, but very impressed with your skills.
Using 0hm's law...4 amps X 3 = 12 amps X 40 = 480 Watts, which is...480 ÷ 12 = 40 ah. So, 480 Watts and/or 40 ah. So 1000 Watts of power drain plus around 20% inverter losses = 56 Watts so 480 Watts - 56 Watts = 424 Watts would deplete those batteries in around 25.5 minutes, of course less with a 1500 Watt inverter but still; not too shabby at all. Great hack Chris 👍
Your Ryobi projects are very cool! Thanks! I watched some of your 40v inverter projects and was wondering if you had more details in paralleling them? Is it the same paralleling the 18v batteries?
Here's an 18V project I did that used groups of two batteries ( th-cam.com/video/lAAWFCU4iEM/w-d-xo.html ), but I didn't do the blocking diodes at the time. Just required that you only used fully charged batteries
@@SerendipitySue Hi Chris, love your videos and hacks. Did you come up with a way to solar charge and passthrough this three port power station ? I'm trying to make my big 6ah Ryobi batteries earn their keep by making two or three of your power stations in conjunction with solar panels on van roof and using them to add a few miles to my hybrid vehicle. I want to make them power a 220v inverter to power an extra level 2 charger I have to add a few miles while parked away from home. Not sure if the level 2 can be tricked into charging like the level 1 charger can be by using a bonding plug into spare inverter outlet. In worse case I can use the level 1 charger on a 120v inverter.
So if I understand this correctly, this is an "exploded" DIY 40V generator - for $300 in components as opposed to $800 in components for the full blown Ryobi generator.
How to make this into something portable. I want to use it for a Sailboat. Bringing the 40volts to the boat electrical panel. Then the inverter and drop to 12 volts. But the charger needs to be able to go back home to charge. I am thinking of connectorizing somehow the 40 volts combines atht e load side of the diodes. So i would need to somehow mount the diode heatsink block onto the Ryobi charger and have a plug of somesort. Thus is could do double duty - bring it to the boat and plug into the panel OR bring it anywhere and plug into other options. Maybe mounting n inverter on teh ryobi case?
In my other project th-cam.com/video/TCWndCrfHi8/w-d-xo.html ). I had to get rid of the charging circuit to make room for the thicker wires and DC-DC converter. I'd have to go back and look at a new supercharger and see if I could solder the thicker wires and bring them outside. You would need six blocking diodes.
@@SerendipitySue that would be amazing to see. I was trying to figure out how to still use my charger as a charger and a power station. 1 other questions : when you drop down the power from 18v to 12v is there much of a power loss. I used a 40 v inverter and hooked my batteries in parallel.
I designed an adapter for the RYOBI 40V battery. The model link is in the video description ( th-cam.com/video/hKc6IsjtHX4/w-d-xo.html ). You can hook as many batteries together as you want.
@SerendipitySue any thoughts on whether this 3-port charger can be powered/charged via solar with some internal hacking? It would be a nice alternative to the crazy priced Power Station.
Thanks for the quick reply, Chris. I’ve watched many of your videos on solar charging Ryobi batteries and learned a ton. I’d like to use the 3 port charger to be able to power up 3 batteries in sequence using solar. I know the 1800 watt Power Station can do this, but not sure if that’s also possible with this 3 port. Thoughts?
Fantastic work and great documentation! I am currently building out a chargeable/hot swappable version of this for a small camping power station this summer. I had a few questions about the diodes you used. 1 - Did you worry about a short being introduced by two diodes sharing a conductive heat sink? I didn't see any insulation that would prevent this but I know very little about these stud style diodes. 2 - Can I use something else that functions as a high powered diode? Specifically I am looking at the 70HF120 Rectifier Diode since it's much lower cost but I am worried about it being a functional sub. Do you think this would work? @SerendipitySue
Curious (not being a smartass) Why not just buy the 40v inverter… Would t that be easier than trying to make one and hope all the connectors and capacitors are right? Or is there an advantage to diy Legit curious
wondering is you could use an aluminum heatsink bar inside the supercharger with the blocking diodes. then perhaps join the - wires inside the box as well to just come out through one hole with two wires + and - but already block protected. I suppose it will need to be checked for space. will the diodes get too hot or cause other problems?
@@SerendipitySue thanks. I have the same concerns. Do the diodes get really hot? To make it a portable power station like the other one you made though it needs some packaging for the external diodes etc. My thinking was if the diodes were internal then it could be a 40Volt supplu then the other bits would be easier to mount. Problem of course is that the negatives on the diodes would be at +40V if left naked. Thanks so much for every video you do! Dara
Hi there, I 3d printed your device for the 40v terminal. I have a Ryobi 40v(36v} jet washer and want to use husqvarna batteries that are 36v. My concern is that there are 4 ports on the husky and also 3 or 4 on the Ryobi. I presume one is for balance charging and the other for communication? will I cause damage just running positive and negative? thanks Stuart
RYOBI batteries have the BMS (battery management system) built in. It protects the battery from overcharging, over discharging, overcurrent, over/under temp. I don't know about other brands of batteries. On RYOBI there are four terminals. For discharging you only need the +/-. Charging requires the T1/T2 sensors.
@@SerendipitySue thank you, the thing that confuses me is that you see those terminals on the tool side of connector too not just between the battery and charges
Ryobi one+ ryobi hp 40v hart 40v hart 20v It would be great to see 3d printed adapter for Hart 40v to Ryobi 40v & to Hart 40v seeing as Hart tools are just rebadged Ryobi it should be capable w/o damage to either tool or battery.
I see Walmart sells them and they are made by TTI (Ryobi's parent company). www.toolboxbuzz.com/cordless-tools/hart-tools-launches-new-line-of-tools-at-walmart/
Hi Chris, love your videos and hacks. Did you come up with a way to solar charge and passthrough this three port power station ? I'm trying to make my big 6ah Ryobi batteries earn their keep by making two or three of your power stations in conjunction with solar panels on van roof and using them to add a few miles to my hybrid vehicle. I want to make them power a 220v inverter to power an extra level 2 charger I have to add a few miles while parked away from home. Not sure if the level 2 can be tricked into charging like the level 1 charger can be by using a bonding plug into spare inverter outlet. In worse case I can use the level 1 charger on a 120v inverter.
sorry I just saw your comment. I keep the 3 battery charger plugged into AC all the time. You can pull power from it while it is plugged in. Maybe you could use a small solar charge controller and a AC inverter to keep them charged? It would be that efficient though
What do you do with all the power stations you have made. Would you ever feel like selling one or two? Right now I am making one of your dual Ryobi 18 volt battery powered Ryobi power inverters, 300 watt, that would normally use a 40 volt battery. I am using a gutted Ryobi 40 volt battery, with just the board remaining, so I have the contacts all ready to slide into the inverter. I will put the two halves of the battery housing back together for more of a stock look. Is there anything I need to look out for? Thanks
yeah... I know.. I have RYOBI projects all over the place :-) Using a 40V battery shell/contact should work nicely. I've gotten a couple dead 40V battery out of the Home Depot recycle box.
You should be able to do something similar with the 18V charger. When I did it, I removed the charging stuff. You would have to find room for the blocking diodes. It would be much easier to add them to a project like: th-cam.com/video/lAAWFCU4iEM/w-d-xo.html
Are the blocking diodes necessary? I’ve connected two ryobi 40v batteries in parallel and their 18v batteries together in parallel for different projects and I could never get any current to pass from one battery into the other. I’m guessing it’s because the internal bms won’t allow voltage to pass through unless the battery is connected to the charger. Which I guess kinda answers my own question. I always used 3D printer adapters that slide onto the battery and have a positive and negative leads coming off, for my projects. However I’d have to remove the battery and place it on the charger every time it died, vs your setup where the the discharge is built into the charger. So of course you need blocking diodes
Would you mind explaining the reason for the diodes? I was thinking it would be a good idea that all 40v connected batteries share the load allowing for parallel sharing (diodes prevent bidirectional current, so remove those), meaning without diodes if one battery is lower than another the higher charged battery will help balance each other and the end resulting capacity of all batteries allowing you to hot swap easier? add a 6ah battery to a 1.5 and the all batteries die at the same time without the diodes.
Ideally all three batteries have the same voltage and will equally contribute to the load. The reason for the diodes is that if the voltages aren't equal, you can easily make an arc welder! A large amount of current (as much as battery can provide) will rush from the full battery to the empty battery. The result would not be good. Unfortunately I don't know of an inexpensive device that will let the current flow in the reverse direction at 2-3A (which is the normal charging current)
@@SerendipitySue A solenoid or relay is cheap and will do what you want.. but I don't think it's necessary, here are my thoughts and I look forward to yours as well on this... the concern if I understand it is the battery seems to have the ability to dump its charge very fast" first off these batteries have PCB boards with MOSFETs that try to force 40v at all times even when the battery is max full or nearly empty. Current can only go up if the voltages are X percent higher than the destination... like flowing water depends on how far you tilt the glass, sure these likely have 12-16x 18650s in them which could means 3 amps per cell, but the key here is a battery can only ingest current at the rate of its chemistry which would limit how fast the current flows into itself out of any of the battery or plural from the "pool" these batteries I believe are rated a 1c max and that makes your wire size engineered at just over that max at 12gauge per battery into a 8-10 gauge bus bar for three of these. Just like how far to tilt the glass with liquid the flow rate will merge from all three or just two depending on the voltage. If one battery is 43 and the other is 38, then technically only 41 volts will flow into the lesser filled battery which will fill or charge very slowly because 41 as not far off from its Nominal when controlled by its built in PCB again to help preserve the tool its plugged into.
48v. Because they are lead acid they needed 75 - 115ah batteries since you can't dischage them pass 50% The 42" could be had with the 75ah batteries. I suppose Lithium would only need to be a percentage of that.
I'm building a powerstation using your plan running two 40v chargers ib parallel. Can i use 3 heat sinks with one blocking diode for each mounted in each one?
@@SerendipitySue Hey Chris if I'm not interested in adding a cigarette lighter socket can I avoid the buck converter and if so would I connect the red switch negative wire directly to the negative side of the inverter?
Question. With this set up Will you be able to connect your solar panel system up with the mppt charge controller and still charge and draw current from your inverter
not yet. The charger is serial (charges one battery at a time) and there is only an AC plug. If it had a AC=>DC power brick like some of the small 40V chargers we could do it.
@@SerendipitySue What if we didn't use the charger and used the 3D created 40v adapter connectors and used your method of the adjustable voltage MPPT charge controller. I used your idea without the charger and used the 40v adapters And used 4 - 40v batteries in my system instead of 3 batteries. I already got the MPPT adjustable controller just haven't tried tried it yet. Appreciate your advise.
Or do I still need to use their DC charger and charge their batteries individually? Afraid my Idea would over charge the group of batteries. But if the adjustable charge controller set to the correct voltage I can't over charge the batteries? If my thinking correct?
Just thought about it the blocking diode would prevent the batteries from accepting a charge. What if the Adjustable MPPT controller was connected to the batteries along with the connection to the the blocking diode from each of the batteries?
@@donkania7338 I haven't figured out how to put the Ryobi 40V batteries into "charge mode" yet (I did for the 18V batteries). So for now I need to use the Ryobi chargers:-(
All of my Ryobi batteries (18V and 40V) are still working. They say LiON batteries will do 500 cycles before they fall under 80% charge. You can look up the specific 18650 cell specs in your battery
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Love your 18v version video and was wondering if you could keep the charging function. Glad to see you made it in this 40V version!
wow... i wanna say it sounds like it out performs the new Ryobi 40v powerstation! great job!
their packaging is much nicer ;-)
What a great diy video! You even went to the trouble of making a parts list with links. Very professionally done. I'm new to your channel, but very impressed with your skills.
Glad it was helpful!
This is great video! I'm not an expert like you at all, but I'm doing same thing with my 80V charger. Thank you for sharing.
We all learn by doing. And electronics is so fun and interesting. I'm doing so many things with my solar charged 40v batteries. Keep it up.
Is always you Chris you are very good I have been following for several months you are the best buddy
Using 0hm's law...4 amps X 3 = 12 amps X 40 = 480 Watts, which is...480 ÷ 12 = 40 ah.
So, 480 Watts and/or 40 ah.
So 1000 Watts of power drain plus around 20% inverter losses = 56 Watts so 480 Watts - 56 Watts = 424 Watts would deplete those batteries in around 25.5 minutes, of course less with a 1500 Watt inverter but still; not too shabby at all. Great hack Chris 👍
Looking foward to a video on solar charging the 3 port ryobi.
Been looking for something like this. Wish Ryobi would help out on the solar side.
Charging via PV MPPT would be really cool!
Your Ryobi projects are very cool! Thanks! I watched some of your 40v inverter projects and was wondering if you had more details in paralleling them? Is it the same paralleling the 18v batteries?
Here's an 18V project I did that used groups of two batteries ( th-cam.com/video/lAAWFCU4iEM/w-d-xo.html ), but I didn't do the blocking diodes at the time. Just required that you only used fully charged batteries
@@SerendipitySue Hi Chris, love your videos and hacks. Did you come up with a way to solar charge and passthrough this three port power station ? I'm trying to make my big
6ah Ryobi batteries earn their keep by making two or three of your power stations in conjunction with solar panels on van roof and using them to add a few miles to my hybrid vehicle. I want to make them power a 220v inverter to power an extra level 2 charger I have to add a few miles while parked away from home. Not sure if the level 2 can be tricked into charging like the level 1 charger can be by using a bonding plug into spare inverter outlet. In worse case I can use the level 1 charger on a 120v inverter.
Ctk-ev 600 mppt charge controller. You can set your charging voltage.
th-cam.com/video/xhLEnkzLj60/w-d-xo.html I did a video on this
Do the diodes keep a load on the batteries even when the unit charger and inverter are plugged?
Wow that's awesome
Wish I could buy one them
#EPIC ⚡
Awesome. Thanks for the video!
Nice!
So if I understand this correctly, this is an "exploded" DIY 40V generator - for $300 in components as opposed to $800 in components for the full blown Ryobi generator.
How to make this into something portable. I want to use it for a Sailboat. Bringing the 40volts to the boat electrical panel. Then the inverter and drop to 12 volts. But the charger needs to be able to go back home to charge. I am thinking of connectorizing somehow the 40 volts combines atht e load side of the diodes. So i would need to somehow mount the diode heatsink block onto the Ryobi charger and have a plug of somesort. Thus is could do double duty - bring it to the boat and plug into the panel OR bring it anywhere and plug into other options. Maybe mounting n inverter on teh ryobi case?
Great idea, super job, very well presented. Best wishes.
Any plans to do something similar with Ryobi 80v batteries? I'd be interested in seeing how they might be used to power an ebike.
sorry, I don't have any Ryobi 80V batteries yet :-)
Amazing job ! Is it the same with you other 6 battery charger ? The previous one you made could you have it do both charge and power ?
In my other project th-cam.com/video/TCWndCrfHi8/w-d-xo.html ). I had to get rid of the charging circuit to make room for the thicker wires and DC-DC converter. I'd have to go back and look at a new supercharger and see if I could solder the thicker wires and bring them outside. You would need six blocking diodes.
@@SerendipitySue that would be amazing to see. I was trying to figure out how to still use my charger as a charger and a power station. 1 other questions : when you drop down the power from 18v to 12v is there much of a power loss. I used a 40 v inverter and hooked my batteries in parallel.
hi Chris... do you have more ideal for a larger power bank with the 40v battery.... for my power station
I designed an adapter for the RYOBI 40V battery. The model link is in the video description ( th-cam.com/video/hKc6IsjtHX4/w-d-xo.html ). You can hook as many batteries together as you want.
How long it last wn you using the inverter
depends on your AC load
@SerendipitySue any thoughts on whether this 3-port charger can be powered/charged via solar with some internal hacking? It would be a nice alternative to the crazy priced Power Station.
Check my video list. I’ve done several videos on solar charging ryobi batteries
Thanks for the quick reply, Chris. I’ve watched many of your videos on solar charging Ryobi batteries and learned a ton. I’d like to use the 3 port charger to be able to power up 3 batteries in sequence using solar. I know the 1800 watt Power Station can do this, but not sure if that’s also possible with this 3 port. Thoughts?
Are these commercially available?
Fantastic work and great documentation! I am currently building out a chargeable/hot swappable version of this for a small camping power station this summer.
I had a few questions about the diodes you used. 1 - Did you worry about a short being introduced by two diodes sharing a conductive heat sink? I didn't see any insulation that would prevent this but I know very little about these stud style diodes. 2 - Can I use something else that functions as a high powered diode? Specifically I am looking at the 70HF120 Rectifier Diode since it's much lower cost but I am worried about it being a functional sub. Do you think this would work?
@SerendipitySue
Curious (not being a smartass)
Why not just buy the 40v inverter… Would t that be easier than trying to make one and hope all the connectors and capacitors are right?
Or is there an advantage to diy
Legit curious
wondering is you could use an aluminum heatsink bar inside the supercharger with the blocking diodes. then perhaps join the - wires inside the box as well to just come out through one hole with two wires + and - but already block protected. I suppose it will need to be checked for space. will the diodes get too hot or cause other problems?
I didn't want the heat inside the case
@@SerendipitySue thanks. I have the same concerns. Do the diodes get really hot? To make it a portable power station like the other one you made though it needs some packaging for the external diodes etc. My thinking was if the diodes were internal then it could be a 40Volt supplu then the other bits would be easier to mount. Problem of course is that the negatives on the diodes would be at +40V if left naked. Thanks so much for every video you do! Dara
@@SerendipitySue oh also can you charge and leave the power connected as well at the same time?
@@MrDara1952 yes
doesnt this void the warranty?
yup
Hi there,
I 3d printed your device for the 40v terminal. I have a Ryobi 40v(36v} jet washer and want to use husqvarna batteries that are 36v. My concern is that there are 4 ports on the husky and also 3 or 4 on the Ryobi. I presume one is for balance charging and the other for communication?
will I cause damage just running positive and negative?
thanks
Stuart
annoying thing is I bought the Ryobi 9amp battery to be on the save side but found its to large to fit into the housing of the pressure washer.
RYOBI batteries have the BMS (battery management system) built in. It protects the battery from overcharging, over discharging, overcurrent, over/under temp. I don't know about other brands of batteries. On RYOBI there are four terminals. For discharging you only need the +/-. Charging requires the T1/T2 sensors.
@@SerendipitySue thank you, the thing that confuses me is that you see those terminals on the tool side of connector too not just between the battery and charges
Ryobi one+ ryobi hp 40v hart 40v hart 20v
It would be great to see 3d printed adapter for Hart 40v to Ryobi 40v & to Hart 40v seeing as Hart tools are just rebadged Ryobi it should be capable w/o damage to either tool or battery.
I haven't seen Hart tools? Who sells them? Walmart? How do you know they are rebadged Ryobi?
I see Walmart sells them and they are made by TTI (Ryobi's parent company). www.toolboxbuzz.com/cordless-tools/hart-tools-launches-new-line-of-tools-at-walmart/
Great video. Did you experience any problems running the 36v inverter on 40v batteries?
No because 40V lithium batteries have a 30-42V range. The inverter has a DC input range: 30V-45V.
Hi Chris, love your videos and hacks. Did you come up with a way to solar charge and passthrough this three port power station ? I'm trying to make my big
6ah Ryobi batteries earn their keep by making two or three of your power stations in conjunction with solar panels on van roof and using them to add a few miles to my hybrid vehicle. I want to make them power a 220v inverter to power an extra level 2 charger I have to add a few miles while parked away from home. Not sure if the level 2 can be tricked into charging like the level 1 charger can be by using a bonding plug into spare inverter outlet. In worse case I can use the level 1 charger on a 120v inverter.
sorry I just saw your comment. I keep the 3 battery charger plugged into AC all the time. You can pull power from it while it is plugged in. Maybe you could use a small solar charge controller and a AC inverter to keep them charged? It would be that efficient though
As always great videos.... can I buy some if your intelligency?
What do you do with all the power stations you have made. Would you ever feel like selling one or two? Right now I am making one of your dual Ryobi 18 volt battery powered Ryobi power inverters, 300 watt, that would normally use a 40 volt battery. I am using a gutted Ryobi 40 volt battery, with just the board remaining, so I have the contacts all ready to slide into the inverter. I will put the two halves of the battery housing back together for more of a stock look. Is there anything I need to look out for? Thanks
yeah... I know.. I have RYOBI projects all over the place :-) Using a 40V battery shell/contact should work nicely. I've gotten a couple dead 40V battery out of the Home Depot recycle box.
Can you add blocking diodes to the 18v x6 battery one? Will they charge?
You should be able to do something similar with the 18V charger. When I did it, I removed the charging stuff. You would have to find room for the blocking diodes. It would be much easier to add them to a project like: th-cam.com/video/lAAWFCU4iEM/w-d-xo.html
Are the blocking diodes necessary? I’ve connected two ryobi 40v batteries in parallel and their 18v batteries together in parallel for different projects and I could never get any current to pass from one battery into the other. I’m guessing it’s because the internal bms won’t allow voltage to pass through unless the battery is connected to the charger. Which I guess kinda answers my own question. I always used 3D printer adapters that slide onto the battery and have a positive and negative leads coming off, for my projects. However I’d have to remove the battery and place it on the charger every time it died, vs your setup where the the discharge is built into the charger. So of course you need blocking diodes
What are the specs on the blocking diodes please? Great vid!
The parts I used are in the video description. The blocking diode was amzn.to/3aSBSgQ
Would you mind explaining the reason for the diodes? I was thinking it would be a good idea that all 40v connected batteries share the load allowing for parallel sharing (diodes prevent bidirectional current, so remove those), meaning without diodes if one battery is lower than another the higher charged battery will help balance each other and the end resulting capacity of all batteries allowing you to hot swap easier? add a 6ah battery to a 1.5 and the all batteries die at the same time without the diodes.
Ideally all three batteries have the same voltage and will equally contribute to the load. The reason for the diodes is that if the voltages aren't equal, you can easily make an arc welder! A large amount of current (as much as battery can provide) will rush from the full battery to the empty battery. The result would not be good. Unfortunately I don't know of an inexpensive device that will let the current flow in the reverse direction at 2-3A (which is the normal charging current)
@@SerendipitySue A solenoid or relay is cheap and will do what you want.. but I don't think it's necessary, here are my thoughts and I look forward to yours as well on this... the concern if I understand it is the battery seems to have the ability to dump its charge very fast" first off these batteries have PCB boards with MOSFETs that try to force 40v at all times even when the battery is max full or nearly empty. Current can only go up if the voltages are X percent higher than the destination... like flowing water depends on how far you tilt the glass, sure these likely have 12-16x 18650s in them which could means 3 amps per cell, but the key here is a battery can only ingest current at the rate of its chemistry which would limit how fast the current flows into itself out of any of the battery or plural from the "pool" these batteries I believe are rated a 1c max and that makes your wire size engineered at just over that max at 12gauge per battery into a 8-10 gauge bus bar for three of these. Just like how far to tilt the glass with liquid the flow rate will merge from all three or just two depending on the voltage. If one battery is 43 and the other is 38, then technically only 41 volts will flow into the lesser filled battery which will fill or charge very slowly because 41 as not far off from its Nominal when controlled by its built in PCB again to help preserve the tool its plugged into.
@@mikenkaried4543 If you are careful and only ever put fully charged batteries in it, then you don't need anything.
What is the 60 amp fuse/holder used for in this setup?
safety
Do the batteries have built in undervoltage protection?
yes
this was awesome. Could something like this be made to power the lead acid Ryobi zero turn?
probably not enough energy (watt/hrs) to run for very long. What voltage does it run at?
48v. Because they are lead acid they needed 75 - 115ah batteries since you can't dischage them pass 50% The 42" could be had with the 75ah batteries. I suppose Lithium would only need to be a percentage of that.
What are the blocking diodes for ?
to keep current rushing from a charged battery to a lower charged battery
@@SerendipitySue that's fascinating
I'm building a powerstation using your plan running two 40v chargers ib parallel. Can i use 3 heat sinks with one blocking diode for each mounted in each one?
you need a blocking diode for each battery
@@SerendipitySue How did you connect wires to the top of the blocking diodes? Solder?
@@davidnoack773 I crimped on standard female spade connector. It fits on the top male portion of the blocking diode
How did you connect wires to the top (anode
) of the blocking diode?
just crimped on a standard female spade connector. It fits on the male portion of the blocking diode
@@SerendipitySue Hey Chris if I'm not interested in adding a cigarette lighter socket can I avoid the buck converter and if so would I connect the red switch negative wire directly to the negative side of the inverter?
@@TxBestlectricrides If you don't care about 13.8V applications, you can get rid of the big red switch, DC-DC converter and the cigarette socket
@@SerendipitySue Thank you.
Question. With this set up Will you be able to connect your solar panel system up with the mppt charge controller and still charge and draw current from your inverter
not yet. The charger is serial (charges one battery at a time) and there is only an AC plug. If it had a AC=>DC power brick like some of the small 40V chargers we could do it.
@@SerendipitySue What if we didn't use the charger and used the 3D created 40v adapter connectors and used your method of the adjustable voltage MPPT charge controller. I used your idea without the charger and used the 40v adapters And used 4 - 40v batteries in my system instead of 3 batteries. I already got the MPPT adjustable controller just haven't tried tried it yet. Appreciate your advise.
Or do I still need to use their DC charger and charge their batteries individually? Afraid my Idea would over charge the group of batteries. But if the adjustable charge controller set to the correct voltage
I can't over charge the batteries? If my thinking correct?
Just thought about it the blocking diode would prevent the batteries from accepting a charge. What if the Adjustable MPPT controller was connected to the batteries along with the connection to the the blocking diode from each of the batteries?
@@donkania7338 I haven't figured out how to put the Ryobi 40V batteries into "charge mode" yet (I did for the 18V batteries). So for now I need to use the Ryobi chargers:-(
I would buy this if it was premade.
How many cycles do all of these batteries get?
All of my Ryobi batteries (18V and 40V) are still working. They say LiON batteries will do 500 cycles before they fall under 80% charge. You can look up the specific 18650 cell specs in your battery