Motorcycle Type (CBM series) Battery characteristic and structure: 1.Maintenance-Free, no need to add electrolyte 2.No need to re-charge constantly 3.Long life (expected life: 3-5 years) 4.Low internal resistance, high output power 5.No leakage, no acidic gas spillage 6.Low self-discharge 7.Can be operated in any position except upside down 8.Easy to transport