Battery balancing:

Jul 26, 2021 Last reply: 2 years ago 9 Replies

I am wiring up 4 banks of batteries with dip40 pin & zif.



Considering 4 battery banks:



Min 360V, Max 400V



_A_ _B_ _C_ _D_



370 380 390 400
400 390 380 370

connected with X ohm at Y duty


  1. what Z AWG do i need?

X Y Z



1 10
5 25
10 50 ohm % AWG


  1. What is the equiv. W AWG for pin headers and 3M zif sockets



Z should be < W Y can be lower



<snipped irrelevant detail>

How much current are you going to draw from the batteries (or pump into them when charging them).

This is all that matters to the connectors, which do have current ratings, and a recommended range of wire gauges (which can handle that sort of current).

Simple deduction from detail that you skipped: (400V - 360V) / 10 ohm.

(400V - 360V) / 40 ohm = 1A min (400V - 360V) / 4 ohm = 10A max.

Is AWG 22 good enough for 10A@10%?

That's about 3A RMS, so maybe.

I think the zif socket would be a problem. Around 1A perhaps.

Might have to increase R (and power lost) or more units: A to F.

Not such a simple deduction - the 400V - 360 V could equally have denoted a voltage range. If it is isn't labelled amps, it isn't safe to jump to conclusions.

It is the voltage range of the batteries. One end of the battery chain tends to be at the max and the other end at the min. 40V and 1 to 10 ohms also imply amps.

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