Amazon.com: 5200mAh 36V Internal Rechargeable Battery Replacement for Segway Ninebot ES1 ES2 ES4 E22 : Health & Household
Batería externa Original para patinete eléctrico, kit de batería adicional para Ninebot ES1, ES2, ES4, E22, E22E, E22D, Kickscooter, Stock en la UE, 187Wh - AliExpress
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