Steffano Posted October 17, 2019 Share Posted October 17, 2019 I recently got a external battery for my es1 scooter. I installed it and works fine. But when I charge the scooter the main scooter battery does not charge but my external battery does. Anyone knows a solution for this issue? Thank you! Quote Link to comment Share on other sites More sharing options...
ionbrain Posted October 17, 2019 Share Posted October 17, 2019 So without the external your internal charges? if that's the case then you have a faulty external battery and need to exchange it. When connecting the external batter it makes a loop circuit so both internal and external can be charged and drain equally. Quote Link to comment Share on other sites More sharing options...
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