Compatibility: Lectric XP4 (step-over frame only) Notice: This battery is NOT compatible with the XP 1.0, XP 2.0, or XP 3.0 due to the new key position. Double the mileage, double the fun! This is a perfect solution for riders looking to achieve longer rides, and more intense adventures. All Lectric eBikes come with a 48V lithium ion battery. Spare batteries can be purchased as a back-up to, or a replacement for, the original battery. Batteries simply slide into the eBike frame and are easily installed and removed. Most batteries can be charged in 4-6 hours using 2A amperage. Spare batteries will arrive in a separate package and do not include a charger. NOTE: Riders should become familiar with their average battery use based on typical weight load, terrain, weather, and other conditions. Product Specifications: 48V 10.4Ah battery pack (500Wh) Certified to UL 2271 Note: Battery Charger sold separately or with a purchase of an eBike.