RR_NDB

Question: How many amps the thin white wires could carry without being transformed in fuses? 1 amp? By pass?

From the image, it looks like those cables are 2-5A rated, but difficult to say

for sure.

There's no sign of power semiconductors and heatsinks on the pcb's though, which

mitigates against the idea of cell balancing electronically. Power dissapation is related

to voltage and current. Consider the following:

Fast charge rate: 65Ah / 1.5hours = 43 Amps + say 10% for losses = 47 Amps,

Say 50Amps absolute max.

Balance current 5% of charge current worst case (from saptzae) = 2.5Amps

Cell voltage = 4.2V max

So, worst case power dissapation in the bypass circuitry would be: 4.2 x 2.5 = 10.5W, per cell.

You would need 8 power semiconductors for the whole battery, together with associated heat sinks and there's no evidence of this on the pcb's...

Just to complete the loop on voltage sensing, you would need 2 sensing wires

per cell, or 16 wires total for 8 cells...

Regards,

Chris