Hello guys I know there has been another topic about this already but didn’t want to hijack it, besides I wanted to do a step-by-step tutorial so others could easily benefit from it.
Step 1: Remove the 8 screws holding the battery and turn it over:
Step 2: Unplug the motor phase and sensor wires
Step 3: Unplug the battery from the BMS, the original battery is a 10S made of 10 LiPo pouches.
Step 4: Unplug the balancer plug from the BMS and desolder the 4 red wires from the positive lead of the battery pack
Step 5: Desolder the 2 wires on the negative lead of the battery pack
Step 6: Get some 18650 Batteries, I used some Samsung 25RI had laying around
Step 7: Use cardboard isolating rings around the posituve lead of each cell in order to have an extra layer of short protection and sport weld them
Step 8: Spot weld 4 each one of the four leads to make 5 x 2S4P
Step 9: Bend the pack:
Glue them together with hot glue silicone
Reconnect the BMS and solder the lead wires:
I run into an issue here, @longhairedboy could give me a hand?
I’m getting only 31.78v on the battery plug however if I meassure the pack directly I get 35.66, I’m not sure where the other 3.88v went!
Meassuring from the battery plug:
Meassuring the whole pack directly:
I took advantage of the procedure to change the faulty Evolve BMS for a the new one from them but there was 1 red wire I left unconnected because I didn’t know where to solder it on the BMS, there were no instructions, maybe that’s the problem.
I’ll update the tutorial once I sort this out.