Hello : )

So weird one. Had an issue with one of the 2 batteries for a backup system.

Anyway battery man came out and said the wall heaters (even though low wattage and eco and all) had caused a ripple in the lithium cells.

He said as it is a heating element it draws a lot then stops them draws more and then this causes the cells to heat up and become magnetic and all sorts thus then one or more of the cells goes to low voltage and can't charge then the others are charged to much.

Anyway this does not sit well with me as never heard of heating elements causing issues and then battery cell failure.

Is there such a thing that a heating element can cause this.

Also said that if it is a 20amp draw on the DC side but since it's a heater it is 4x more so 80A but I never seen such high DC amps reported and no fuse or anything blow.

I always thought if the load is 2000watts and you have have a 10kwh battery system it will also 5hours.
But now he says as it is a heater it is worked per second the 2000watts so will be like 20 minutes.

Anyway if anyone has some form of input please help. Maybe I am wrong and he is right but no other battery manufacturer has said anything about that of a restsiror / heating elements pulling 4 times it's rating on the DC side

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