Battery Replacement for Velowave Ranger FMTB3 2.0 version & Ghost MTB3 2.0 versionIG Lithium-ion Cells48V 15Ah 720WhMax Charging Current: 5AWARNING:Do not connect the positive and negative terminals together.Do not expose the battery to heat or strong sunlight.Do not submerge the battery in liquid of any kind and avoid drenching it with rain.Do not disassemble the battery without professional guidance.Do not charge the battery if the ambient temperature is below 32(0) or above 104(40)Use specified chargers only.Disconnect charging within 2 hours after the battery is fully charged.For longtime storage, keep the battery in a cool and dry place and charge it for two hours every two months.
