What is the difference between balance charging and fast charging?
This ensure each of the two cells are the same voltave, ie 3.7v x 2 not 3v + 4.2v
Can they be charged the night before a race or is it best to only charge them on the day?
Yes
Do they need to be fully discharged?
No, leave them as they are (make sure not fully dumped though!)
Which brands appear to be the best?
Would always go for any on the BRCA list. For your racing currently, any will suffice. I use £90 Orion's but it doesnt make me any better than a £30 set I sometimes use!!!
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Vega RB6 - Orion - Apex Models - JE Models - Cable ties
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