🔋【48V 20AH REMOVABLE BATTERY & DUAL BATTERY DESIGN】: Your Long-Range Expert! – A 5-6 hour, 3A fast charge keeps you on the road. Strategically positioned dual batteries design allow optional 15AH/20AH/25AH external batteries to extend your traveling to Max 140-180 Miles range. More time exploring and less time charging.Perfect for daily or long-range commutes, weekend leisure cycling, or road riding.