hi, Mr Duodeluxe:
First, i had a question.
Every electric suitable for each model. If a model needs 210AH, you replace 210AH, useing 280AH, it would hurt the machine.
Secondly, maybe you can check the controller, there is something wrong.
Hope my suggestion would help you.
If you have any question, you can ask me.
Best Regards
Moon
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