Uploaded June 2020 | Updated September 2026, 1 day ago
I recently pulled LFP (lithium iron phosphate) cells from an old EV. The car was converted 8 or 9 years ago and the cells were in rough shape. Most of the cells were below 1.0 volt! That's not good.
For the past month I have been very slowly charging each cell. I used a buck converter from a 12v battery to charge the dead cells one at a time. I used constant current of 0.1 amp. This took a long time. Once all the cells were at 2.5 volts I then paralleled the cells and finished charging to about 3.3 volts. My goal was roughly 80% capacity.
In this video I'm utilizing an iCharger X8 to do a capacity test. This means setting up the iCharger into "regen" mode, which allows for 30 amp discharge. If you want more info on how to set up this mode I recommend checking out this video from Lithium Solar: youtu.be/sCYv1OPGhSc
If you would like to purchase batteries, I buy mine from Battery Hookup. batteryhookup.com If you use my coupon code "DAVIDPOZ" it helps the channel and you get 10% off your purchase.
If you would like to help support this channel check out my patreon page: patreon.com/DavidPoz
Amazon Affiliate Links:
iCharger X8: amzn.to/2UERdql
XT60 connectors: amzn.to/3hrgy10
JST-XH 8s connectors: amzn.to/3cUqNHl
“As an Amazon Associate I earn from qualifying purchases.”
Disclaimer:
My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.
I recently pulled LFP (lithium iron phosphate) cells from an old EV. The car was converted 8 or 9 years ago and the cells were in rough shape. Most of the cells were below 1.0 volt! That's not good.
For the past month I have been very slowly charging each cell. I used a buck converter from a 12v battery to charge the dead cells one at a time. I used constant current of 0.1 amp. This took a long time. Once all the cells were at 2.5 volts I then paralleled the cells and finished charging to about 3.3 volts. My goal was roughly 80% capacity.
In this video I'm utilizing an iCharger X8 to do a capacity test. This means setting up the iCharger into "regen" mode, which allows for 30 amp discharge. If you want more info on how to set up this mode I recommend checking out this video from Lithium Solar: youtu.be/sCYv1OPGhSc
If you would like to purchase batteries, I buy mine from Battery Hookup. batteryhookup.com If you use my coupon code "DAVIDPOZ" it helps the channel and you get 10% off your purchase.
If you would like to help support this channel check out my patreon page: patreon.com/DavidPoz
Amazon Affiliate Links:
iCharger X8: amzn.to/2UERdql
XT60 connectors: amzn.to/3hrgy10
JST-XH 8s connectors: amzn.to/3cUqNHl
“As an Amazon Associate I earn from qualifying purchases.”
Disclaimer:
My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.
