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Hello there. I just saw you trade in wisper bikes. Do you sell the control boxes for them please? Regards Steve

Hi there. I’m new to this electric bike game but I have hit an early problem. I have a wisper works 905se that has a new battery but will not power up on the green button. I have looked inside the control box and there are no signs of heat damage, or smell of burning. The chap i bought it off...