Universal Parts 12v 18ah SLA Battery is used on electric and mobility scooters. This 18 Ah battery makes an excellent upgrade for any mobility scooter running off of this size class (U1) of batteries. The SLA12-18 replaces any standard 12 volt 18 Ah battery including the following battery models: BP18-12, EXP12180, NP18-12B, GPS1812, ES17-12, ML18-12, PK-12180, PS-12180, CB19-12, SLA17-12, SP12-18HR, TR18-12, UB12180 l, NP18-12