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 backup 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. 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 Certified to UL 2271Compatibility:Lectric XP Step-Thru (1.0, 2.0, & 3.0 models) Note: Battery Charger sold separately or with a purchase of an eBike.Click here for information on battery safety.