Not sure if you know this but you can buy 3D printed docks from eBay and request the wire gauge you need . You would be able to remove your battery and charge theme on a ryobi charger . I bought 5 ryobi string trimmers from Craigslist’s for 20 bucks and cut the battery Mount and I used them on my ebike . I use the 5ah and 2.6ah battery it works great . Ryobi just released a 7.5 ah battery and once the price goes down on those I can’t wait to try it.
My batteries were .bought for the purpose of my e-bike and other things. I understand what you are saying and maybe I'll make another video on how to do the same thing and still be able to use for ryobi tools. I did originally modify one that could be used for ryobi tools and for other projects. Apparently there is an adapter you can buy so your projects have the same slide in as your tools. I believe they can be 3d printed or someone on ebay will print them for you.
One thing that I noticed when paralleling these 40v batteries is that one will take much more of the current than the other. They never discharge at equal rates. It's better to just run off one battery, then when that one dies, just run off the second battery. The BMS on these batteries probably has something to do with it. I tried running two ryobi 40v batteries off my modded razor scooter and one battery (with exact wire lengths as the other) would always discharge much faster than the other.
I noticed that too. It seemed like one would have a slightly higher voltage before accelerating and would do most if not all of the work. Then after stopping acceleration and then restarting the other would be at a higher voltage and do most of the work. They seem to take turns doing the work, so it works for me. Mind you, the batteries I have were once dead 0V batteries that I revived and charge by bypassing the FETs and monitoring the individual cells.
@@thecityviking I've revived 8 of these batteries, I've kept the ones with the most capacity and recycled the rest. Some still have quite a bit if life left after fixing them.
That is awesome! I go one step further and salvage the individual cells. I am working on a welder to start making my own batteries. I was thinking of salvaging the ryobi cases for some of the batteries as well. They are a nice rugged container for the cells and we know it will hold at least 20!
I tried using this method on only one battery for a 1000 watt hub... it works for a second and then shows low battery and shuts off even tho battery is fully charged.... any advice?
1000 watt motor is probably too much for a single 40volt battery. You are trying to pull 25+ amps from that battery. You should be able to pull maybe half that from a new battery. If you have 2 battery packs that are the same voltage and same amphour rating you could connect them in parallel to get more current, but you need to make sure your packs are at the same voltage before you connect them or even better use a high power Shottky diode on each pack. Hope this makes sense and helps. P.S. my motor was a 250W so the battery pack only needed to provide 6.25A. One battery pack can easily do that. :)
So I had an idea to use 2 of them for an E-bike project but use the original charger to charge them, and also just use a 3D printed adapter to stick them on the bike, kinda like on the original Ryobi tools. But I have a question, the controller im planning on using is a 72 volt controller, so im wondering, can I connect the batteries in series to get ~72 ish volts without the circuitry freaking out? or is it a better option to just ditch the circuitry and use a different charger?
I think you are right about the boards freaking out. You could possible use the built in board for charging and bypass the FET's for discharge and use an external bms without balance to monitor and control the 2 battery packs.
I know I got to the store and back which is maybe round trip 8 kilometers and they still had a charge. Snow has been melting here early, so I'll try and get better numbers for you! :)
Black +, are you positive you want to do that? The electrons will get confused:) I have to admit I often catch myself following AC colour coding on DC as well.
When I run into situations like that, the rainman in me gets stuck for a while, but now that you mentioned it, black is ground! No wait, black is hot. ...
I believe some of those hoverboard motors are either 250-350W. The battery from one of those may work quite well as long as the motor you choose is not too big. You could put 2 in parallel and get some decent range! Good luck with your project.
I have several chargers that I can use. I have a 40V charger(charges to 42V) e-bike charger that I sometimes use, but I like to use a laptop charger connected to a DC-DC booster. The DC-DC takes the 18V laptop supply and boosts it up to 41V. It has separate voltage and current limit adjustments on it. I find if I limit the current to 1 amp or less, the older cells balance better, and if I only charge to 41V, it is safer and reduces the chance of one cell over charging. I also just bought an adapter plate so I'll be using that in the future! Perhaps I'll make a quick update.
@@thecityviking Ok, so you plug the white (-) and black (+) wire to a 42V DC charger (just a power supply right?) or you use an additional step-up/down converter between the power supply and the battery. This converter gives additional current-limiting functions to keep 1A constant. Got it, Thx!
Battery hookup. You may also be interested that I was on another bike ride testing with a single battery and pedaling and found that performance was quite good.
hey city viking! would a 144 watt 36 volt hoverboard battery work with a 36 volt scooter? in other words, would the wattage affect whether the scooter will even turn on?
I believe it will work. Most motor controllers need the voltage to be at a certain threshold to get the motor to go. So a 36 volt motor just needs a 36V battery to start, however if your motor tries to pull too much current from the battery, the battery may turn off to protect itself. You may also experience less range if your battery does not have enough capacity. All that being said, I believe you would have no problem with a 250W motor, but a 500W motor may be pushing it for your hoverboard battery. Also, does the hoverboard not have 2 motors in it, one on each side? If it does, the battery is powering 2 135W motors for a total of 270W. Thanks for watching and good luck with your project.
It's best to keep the color code for DC. Black is always Negative, if you have a white wire you can make it red with a marker. If we reverse stuff trouble will happen down the road. Electrons flow from the negative to the positive. 73
The soldering wires I buy at Home Depot and amazon seemed to for light duty small wires purposes. Do you know any high heat soldering wires that sticks very good? I’m looking for something like they would use on the main negative/positive battery terminals on a circuit board.
www.amazon.ca/dp/B01M8M2TMB?ref=ppx_pop_mob_ap_share That's the link for some 10 guage wire I purchased from Amazon.ca I also buy wire from a welding supply or Princess auto up here in Canada.
@@thecityviking Cool thanks. Do you know if this spool is something I’m looking for? I need a strong solder that will hold its place. Let me know if you have something better in mind: stellartechnical.com/products/10-88-2-high-temp-032-solder-wire
That should work, but a thicker solder would be better I would go for this stuff stellartechnical.com/products/sn60-pb40-60-40-rosin-activated-solder-wire-3-flux-062-diameter-1-lb-spool?_pos=13&_sid=c025f4cb0&_ss=r
Do you know if there is a way to use the case to make hacked battery pack for say mower using case as the connector and an external or internal cell pack in place of the weak or dead cell pack?
I hooked up one of these to my T6 hoverboard, the onboard battery is 37v but it didn't affect anything, the only problem I'm having is the hoverboard draws too much power so the ryobi battery is cutting off, then the two center lights flash a few times then needs to be unplugged and plugged back in to work again, is there any way to shut off this over draw problem?
The individual cells are capable of 15A each. There are 2 in parallel so the pack should be able to supply 30A. The battery may be shutting down for a variety of reasons. I had one older battery where one set of cells discharged much faster than the rest shutting the pack down prematurely. How much current is the hoverboard trying to pull? Is the pack new and are the cells balanced?
Appreciate the video. Do you know what *is* safe to draw from these packs? Or how to determine it? I have two of the 6AH HP versions that I would like to draw from in parallel to power a "1000w" mini bike.
Here is a link to the cells in the video. secondlifestorage.com/index.php?threads/lg-lgdaha11865-cell-specifications.5258/ They are capable of 15A max current each and they are 2 in parallel so that is 30A. I think the lawnmower pulls an average of 6-7A. At 1000 watts you would be pulling 30A so split between the two packs may be doable because each would only have to supply 15A. Depending on how you ride it may work. If you are riding uphill without pedaling you would be pushing the batteries but on flat land and pedaling it would be no problem. Hope that helps.
Not sure if you know this but you can buy 3D printed docks from eBay and request the wire gauge you need . You would be able to remove your battery and charge theme on a ryobi charger . I bought 5 ryobi string trimmers from Craigslist’s for 20 bucks and cut the battery Mount and I used them on my ebike . I use the 5ah and 2.6ah battery it works great . Ryobi just released a 7.5 ah battery and once the price goes down on those I can’t wait to try it.
That's awesome! I'll have to check that out.
There is a refurb Ryobi battery store on Ebay
Amazon has power wheels adapters for any cordless tool battery
Type in power wheels adapter 40v ryobi
One question does anyone make a 40 volt e bike motor? I only found 36 volt models. 73
No one ever says the most important part WHAT DO YOU WIRE THE RED AND BLACK TOO?
U know it's gonna be a good video when he breaks out the soldering gun
oh yeah!
having to modify the battery ruins this for me. I want to take my chainsaw battery and use it for a bike and still use it on my chainsaw afterwards.
My batteries were .bought for the purpose of my e-bike and other things. I understand what you are saying and maybe I'll make another video on how to do the same thing and still be able to use for ryobi tools. I did originally modify one that could be used for ryobi tools and for other projects. Apparently there is an adapter you can buy so your projects have the same slide in as your tools. I believe they can be 3d printed or someone on ebay will print them for you.
One thing that I noticed when paralleling these 40v batteries is that one will take much more of the current than the other. They never discharge at equal rates. It's better to just run off one battery, then when that one dies, just run off the second battery. The BMS on these batteries probably has something to do with it. I tried running two ryobi 40v batteries off my modded razor scooter and one battery (with exact wire lengths as the other) would always discharge much faster than the other.
I noticed that too. It seemed like one would have a slightly higher voltage before accelerating and would do most if not all of the work. Then after stopping acceleration and then restarting the other would be at a higher voltage and do most of the work. They seem to take turns doing the work, so it works for me. Mind you, the batteries I have were once dead 0V batteries that I revived and charge by bypassing the FETs and monitoring the individual cells.
@@thecityviking I've revived 8 of these batteries, I've kept the ones with the most capacity and recycled the rest. Some still have quite a bit if life left after fixing them.
That is awesome! I go one step further and salvage the individual cells. I am working on a welder to start making my own batteries. I was thinking of salvaging the ryobi cases for some of the batteries as well. They are a nice rugged container for the cells and we know it will hold at least 20!
@@thecityviking The cell holders are handy too. I use them to keep my usable harvested cells organized after I remove them from the packs.
I tried using this method on only one battery for a 1000 watt hub... it works for a second and then shows low battery and shuts off even tho battery is fully charged.... any advice?
1000 watt motor is probably too much for a single 40volt battery. You are trying to pull 25+ amps from that battery. You should be able to pull maybe half that from a new battery.
If you have 2 battery packs that are the same voltage and same amphour rating you could connect them in parallel to get more current, but you need to make sure your packs are at the same voltage before you connect them or even better use a high power Shottky diode on each pack. Hope this makes sense and helps.
P.S. my motor was a 250W so the battery pack only needed to provide 6.25A. One battery pack can easily do that. :)
@@thecityviking Thanks for the reply! will try it with 2 batteries .... you think the bms on the battery is cutting off the power ?
I am almost positive that the BMS is shutting the pack down. Hook up a meter and monitor the voltage while slowly applying throttle. Good luck.
Your 1000 watt hub drains too much amp. Ryobi batteries only produce 4-6 amps. Connect multiple ryobi batteries in parallel to generate more amps.
@@thecityviking Can you provide any schottky diode recommended for a ryobi 40v 6amp battery on a 350w motor?
So I had an idea to use 2 of them for an E-bike project but use the original charger to charge them, and also just use a 3D printed adapter to stick them on the bike, kinda like on the original Ryobi tools. But I have a question, the controller im planning on using is a 72 volt controller, so im wondering, can I connect the batteries in series to get ~72 ish volts without the circuitry freaking out? or is it a better option to just ditch the circuitry and use a different charger?
I think you are right about the boards freaking out. You could possible use the built in board for charging and bypass the FET's for discharge and use an external bms without balance to monitor and control the 2 battery packs.
May I know the range of each charge and how long would they last? Thank you.
I know I got to the store and back which is maybe round trip 8 kilometers and they still had a charge. Snow has been melting here early, so I'll try and get better numbers for you! :)
Black +, are you positive you want to do that? The electrons will get confused:) I have to admit I often catch myself following AC colour coding on DC as well.
When I run into situations like that, the rainman in me gets stuck for a while, but now that you mentioned it, black is ground! No wait, black is hot. ...
City Viking great videos! Keep them coming!
Im debating whether to get one of these, or just shove a hoverboard battery in a project Im working on..
I believe some of those hoverboard motors are either 250-350W. The battery from one of those may work quite well as long as the motor you choose is not too big. You could put 2 in parallel and get some decent range! Good luck with your project.
@@thecityviking its a schwinn stingray occ junior, not exactly something someone that is 5ft 8 needs to worry about range with lol
If u weld the wires to the battery how do charge it after. Thanks
The batteries I used were bought for just the bike. Here is a link to an adaptor that works great!
amzn.to/3QBBtyJ
How to charge the battery? since now you cannot access all 4 pins ...
I have several chargers that I can use. I have a 40V charger(charges to 42V) e-bike charger that I sometimes use, but I like to use a laptop charger connected to a DC-DC booster. The DC-DC takes the 18V laptop supply and boosts it up to 41V. It has separate voltage and current limit adjustments on it. I find if I limit the current to 1 amp or less, the older cells balance better, and if I only charge to 41V, it is safer and reduces the chance of one cell over charging. I also just bought an adapter plate so I'll be using that in the future! Perhaps I'll make a quick update.
@@thecityviking Ok, so you plug the white (-) and black (+) wire to a 42V DC charger (just a power supply right?) or you use an additional step-up/down converter between the power supply and the battery. This converter gives additional current-limiting functions to keep 1A constant. Got it, Thx!
You have my interest on this project! By chance did these batteries come from battery hookup or another source?
Battery hookup. You may also be interested that I was on another bike ride testing with a single battery and pedaling and found that performance was quite good.
Thanks for the super helpful video!
You're welcome! thanks for watching
hey city viking! would a 144 watt 36 volt hoverboard battery work with a 36 volt scooter? in other words, would the wattage affect whether the scooter will even turn on?
I believe it will work. Most motor controllers need the voltage to be at a certain threshold to get the motor to go. So a 36 volt motor just needs a 36V battery to start, however if your motor tries to pull too much current from the battery, the battery may turn off to protect itself. You may also experience less range if your battery does not have enough capacity. All that being said, I believe you would have no problem with a 250W motor, but a 500W motor may be pushing it for your hoverboard battery.
Also, does the hoverboard not have 2 motors in it, one on each side? If it does, the battery is powering 2 135W motors for a total of 270W.
Thanks for watching and good luck with your project.
It's best to keep the color code for DC. Black is always Negative, if you have a white wire you can make it red with a marker. If we reverse stuff trouble will happen down the road. Electrons flow from the negative to the positive. 73
Good tip. Thanks for watching.
Why not use a charger and splice directly .that way you can swap them .I have a few Xtra chargers
The batteries I used were bought for just the bike. Here is a link to an adaptor that works great!
amzn.to/3QBBtyJ
The soldering wires I buy at Home Depot and amazon seemed to for light duty small wires purposes. Do you know any high heat soldering wires that sticks very good? I’m looking for something like they would use on the main negative/positive battery terminals on a circuit board.
www.amazon.ca/dp/B01M8M2TMB?ref=ppx_pop_mob_ap_share
That's the link for some 10 guage wire I purchased from Amazon.ca
I also buy wire from a welding supply or Princess auto up here in Canada.
@@thecityviking Cool thanks.
Do you know if this spool is something I’m looking for? I need a strong solder that will hold its place. Let me know if you have something better in mind: stellartechnical.com/products/10-88-2-high-temp-032-solder-wire
That should work, but a thicker solder would be better
I would go for this stuff
stellartechnical.com/products/sn60-pb40-60-40-rosin-activated-solder-wire-3-flux-062-diameter-1-lb-spool?_pos=13&_sid=c025f4cb0&_ss=r
Do you know if there is a way to use the case to make hacked battery pack for say mower using case as the connector and an external or internal cell pack in place of the weak or dead cell pack?
I actually have parts on order for just a project like that. Stay tuned
I hooked up one of these to my T6 hoverboard, the onboard battery is 37v but it didn't affect anything, the only problem I'm having is the hoverboard draws too much power so the ryobi battery is cutting off, then the two center lights flash a few times then needs to be unplugged and plugged back in to work again, is there any way to shut off this over draw problem?
The individual cells are capable of 15A each. There are 2 in parallel so the pack should be able to supply 30A. The battery may be shutting down for a variety of reasons. I had one older battery where one set of cells discharged much faster than the rest shutting the pack down prematurely. How much current is the hoverboard trying to pull? Is the pack new and are the cells balanced?
Can you tell me what soldering tin do you use to get the wires super soldered onto the battery terminal clips?
Here is the link to Amazon.ca where I got the pen
www.amazon.ca/dp/B01ELUI19Q/ref=cm_sw_r_cp_apap_EZUvJDIYS2MC3
Thanks for watching.
@@thecityviking Thanks for responding back and thanks for making this video.
Appreciate the video. Do you know what *is* safe to draw from these packs? Or how to determine it? I have two of the 6AH HP versions that I would like to draw from in parallel to power a "1000w" mini bike.
Here is a link to the cells in the video.
secondlifestorage.com/index.php?threads/lg-lgdaha11865-cell-specifications.5258/
They are capable of 15A max current each and they are 2 in parallel so that is 30A. I think the lawnmower pulls an average of 6-7A. At 1000 watts you would be pulling 30A so split between the two packs may be doable because each would only have to supply 15A. Depending on how you ride it may work. If you are riding uphill without pedaling you would be pushing the batteries but on flat land and pedaling it would be no problem.
Hope that helps.
I realize I'm quite randomly asking but does anyone know of a good website to watch newly released tv shows online?
@Austin Fox flixportal :)
@Oakley Curtis thank you, I went there and it seems like they got a lot of movies there =) I appreciate it!
@Austin Fox You are welcome :)
Just buy a battery charger, rip out internals and use charger as base
I do have some other ideas in mind similar to what you are suggesting.
Thanks for the comment
@@thecityviking your welcome, it would just make the set up a little simpler, and easier to swap
17:35 that's why you should have wired in series and not in parallel
Series would double the voltage and blow up my motor. That was not my goal. Thanks for watching.