Here is the only way to finally solve ES2/ES4 external battery connector issues once and for all. : r/ninebot
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Ninebot es2/ES4 external battery connector burned off and does not come off. Any ideas how to remove it, so I can replace it with the new one ? : r/ElectricScooters
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Bad connection between new external battery and my ninebot es2, in the app show me 45 km but when i start the ride he go slow, like without external battery, how i
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