Quote:
Originally Posted by redshift
I still can't believe MA or any other mfr would parallel cells like that. I know there are a few others, but the only truly safe way to work with that config is to charge it as a 4S and run it as 2S, but the balance tap is 2S....stupid!
Linc you should make a mattress out of all the puffy cells and make certain people sleep on said mattress- I'd pay to see it....
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Only prob with your method is that the balancer wire hookup would not work with the cells paralled. Now you could have 2 completely seperate packs (1p config) that had some sort of plug on the output wires to parallel them together, and then shrink the 2 packs together to have 1 larger pack. Then seperate the output wires and wire it as a 4s pack when charging. The way the cells are assembled is that 2 cells have the pos tabs attached together, and the neg tabs attached together, basically making one larger "cell". Then those larger "cells" are assembled in series for the desired voltage. So unless you seperate the cell pairs there is no way to charge them seperately.
I have run 2s packs in parallel before, and then charge them as a 4s pack with a charge adapter, it is the best way to gaurantee that the cells are all charged properly. How ever if the cells are not all matched at the factory, you may never get them to work together perfectly. The only real way to do it would be to disassemble a 4s pack and make 2 2s packs and then wire them in parallel via the output leads.
This is all a waste of time IMO, as you can get good cells up to 6000mah (enerland) and if you want more runtime just swap out batteries, keeps the weight low and that is always desired.
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