... 4.2kg 4.2 year warranty 5.with Charger&BMS, Al alloy case 36V10Ah E bike battery ... with Charger, Al alloy case1. Model: KY-3610-B ... , Light weight, small size11, Large overcharge tolerance and safe performance 12, Self balance Applications:1 .Large ... mower4. Remote control cars, boat, aircraft, toys,5. Solar and wind power generation energy storage devices6. UPS emergency ...