question

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don-b asked

BMV-712 "Remaining time" reading too slow to calculate

The BMV-712 "Remaining time" is not quick to calculate like my previous battery monitor. My 12v fridge turns on (drawing a constant current), and the "Remaining time" reading slooooowly decreases. Too slow. The fridge turns off before the reading gets anywhere near where it should be. My previous BMS took 2 seconds to re-calculate (once the current draw was constant). What gives?

BMV Battery Monitor
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1 Answer
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seb71 answered ·

Decrease the "time-to-go averaging period" if you want a more "responsive" number.

But just because it "slooooooowly" decreases it does necessarily means it is off. If you have a large battery, a fridge should not drain it just in a few minutes, so the "time to go" should not rapidly decrease.

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