JonanGrobler
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What is the kw rating of the table saw and grinder as warning 71 is bms related your batteries gets disconnected due to overcurrent on startup. Your table saw motor and grinder is starting up under load. Your 2 x 5kwh batteries will tolerate not more than 8.7kw on the ac side or around 39 ac amps. (203 amps dc)Your startup on motors could be 8~10 times run current it is called LRC locked rotor current which happens on startup.