question

warwick avatar image

How do I know my Battery Balancers are alive?

I've wired in my balancers but they give me no indication, LEDs or otherwise that they "on" and doing anything... (The wiring is ugly, and I'm thinking about how to do it better).



They are connected as follows (white wire above is thin green wire below):

Battery Balancer
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1574946164329.png (337.2 KiB)
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2 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

A look at the datasheet shows this:

When the charge voltage of a 24V battery system increases to more than 27,3V, the Battery Balancer will turn on (...)

LED indicators
Green: on (battery voltage > 27,3V)
Orange: lower battery leg active (deviation > 0,1V)
Orange: upper battery leg active (deviation > 0,1V)
Red: alarm (deviation > 0,2V). Remains on until the deviation has reduced to less than 0,14V, or until system voltage drops to less than 26,6V.

So as long as your battery voltage is lower 27,3V(between two batteries) all LEDs are off.

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warwick avatar image
warwick answered ·

Update

Seems that they’ve come alive now that the MPPTs are charging. Looks good I think.

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