Replacement Battery for UDI R/C UDI007 Voyager / UDI002 Tempo Speed Boat 7.4V 1500mAh Rechargeable Li-ion (Geniune UDI) 7.4v 1500Ah Li-Ion Replacement Battery compatible with UDI UDI007 Voyager and UDI002 RC Tempo Speed Boat Batteries come equipped with built-in protection mechanism for safe charging and use. Enhance your racing experience by using only manufacturer recommended spare parts. Each battery provides 7-9 minutes of racing time. Charging time is between 60-90 minutes. Rechargeable up to hundreds of times.