Lithium ebike battery 24V36V48V 10Ah with Charger Approvals: RoHS, UN38.3, FCC,CE Key Specification1. Model: KY-4815-A with 48V 15Ah2. Specification:48V ... make battery more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015. Long life cycle, No memory, environment friendly 36V 10Ah rechargeable lithium e-bike battery