transposon
100 W
So, I was the lucky purchaser of a lot of 4s1p Panasonic 25R battery packs that should have received little use. I would like to use these to build a large ebike pack - 14 or 16s and 6-8P. From what I have read, creating parallel groups first and then putting them in series is the way to go. Unfortunately, that requires disassembling all of the packs. Is this the only way?
If I were to break apart all of the packs and test the cells individually, I can cut the nickel strips so that all of the cells retain a bit of spot welded strip.
--Am I better off trying to use the small amount of connected strip for soldering or welding, or am I better off taking all of the strip off and spot welding a new strip down once the pack is laid out?
I just purchased the maletctrics spot welder and have a high power soldering iron, so I have all of the tools.
In my head, the ideal, yet labor intensive, workflow is to:
-Separate all of the individual cells, removing the previously welded strip.
-Test each one for capacity and IR.
-Group the cells in 6-8P groups, standardizing capacity across each group, then spot weld.
-Connect the groups in Series with a spot welder.
Is this the way to go?
If I were to break apart all of the packs and test the cells individually, I can cut the nickel strips so that all of the cells retain a bit of spot welded strip.
--Am I better off trying to use the small amount of connected strip for soldering or welding, or am I better off taking all of the strip off and spot welding a new strip down once the pack is laid out?
I just purchased the maletctrics spot welder and have a high power soldering iron, so I have all of the tools.
In my head, the ideal, yet labor intensive, workflow is to:
-Separate all of the individual cells, removing the previously welded strip.
-Test each one for capacity and IR.
-Group the cells in 6-8P groups, standardizing capacity across each group, then spot weld.
-Connect the groups in Series with a spot welder.
Is this the way to go?