Uploaded August 2019 | Updated September 2026, 1 day ago
This is the finale video of building the Smart Fortwo battery. I've recovered the cells, re-configured them to 48 volt, and got everything back into the original case. WOW.
Update: You can purchase a similar 48 volt battery to the one I used in this video. The 48v modules are being sold at Batter Hookup. Here is an affiliate link: bit.ly/2DBVr9b
This is probably about 15-15.5 kwh of total capacity. I'm only going to be using 11 kwh by charging between 4.05v/c and discharging no lower than 3.5v/c.
There are (6) 48 volt batteries all wired together in parallel. Each battery has it's own BMS board for safety. BMS stands for battery management system.
This lithium battery came out of a 2013 Smart Fortwo EV (electric vehicle). It will be used in my DIY Powerwall for back-up power if the grid goes down. Off-Grid.
I purchased this BMS through Aliexpress, but here is a link to the manufacturer, LLT Power : https://www.lithiumbatterypcb.com/pro...
Positive and Negative Posts: amzn.to/2YBDhfX
Ferruls: amzn.to/2YllTkw
Heat Shrink Tubing, Black: amzn.to/2M5UDk1
Midnite Solar 40 amp circuit breakers: amzn.to/2LNEGgH
Midnite Solar Bus Bar: amzn.to/2LKXfCq
Din Rail: amzn.to/2xErP8h
Wire, 8 gauge, flexible, Red: amzn.to/2LJoZXW
Wire, 8 gauge, flexible, Black: amzn.to/2XBv5vL
Hydraulic Crimping Tool: amzn.to/2yxP0Sa
Heat Shrink Tubing: amzn.to/2xCe0aB
Ring Terminals: amzn.to/2YDicSt
Thanks for watching. If you would like to help support the channel please check out Patreon, or use an affiliate link. Thank you.
patreon.com/DavidPoz
We can chat and share project pictures on facebook: facebook.com/DavidPozEnergy
“As an Amazon Associate I earn from qualifying purchases.”
This is the finale video of building the Smart Fortwo battery. I've recovered the cells, re-configured them to 48 volt, and got everything back into the original case. WOW.
Update: You can purchase a similar 48 volt battery to the one I used in this video. The 48v modules are being sold at Batter Hookup. Here is an affiliate link: bit.ly/2DBVr9b
This is probably about 15-15.5 kwh of total capacity. I'm only going to be using 11 kwh by charging between 4.05v/c and discharging no lower than 3.5v/c.
There are (6) 48 volt batteries all wired together in parallel. Each battery has it's own BMS board for safety. BMS stands for battery management system.
This lithium battery came out of a 2013 Smart Fortwo EV (electric vehicle). It will be used in my DIY Powerwall for back-up power if the grid goes down. Off-Grid.
I purchased this BMS through Aliexpress, but here is a link to the manufacturer, LLT Power : https://www.lithiumbatterypcb.com/pro...
Positive and Negative Posts: amzn.to/2YBDhfX
Ferruls: amzn.to/2YllTkw
Heat Shrink Tubing, Black: amzn.to/2M5UDk1
Midnite Solar 40 amp circuit breakers: amzn.to/2LNEGgH
Midnite Solar Bus Bar: amzn.to/2LKXfCq
Din Rail: amzn.to/2xErP8h
Wire, 8 gauge, flexible, Red: amzn.to/2LJoZXW
Wire, 8 gauge, flexible, Black: amzn.to/2XBv5vL
Hydraulic Crimping Tool: amzn.to/2yxP0Sa
Heat Shrink Tubing: amzn.to/2xCe0aB
Ring Terminals: amzn.to/2YDicSt
Thanks for watching. If you would like to help support the channel please check out Patreon, or use an affiliate link. Thank you.
patreon.com/DavidPoz
We can chat and share project pictures on facebook: facebook.com/DavidPozEnergy
“As an Amazon Associate I earn from qualifying purchases.”
