The most popular Motorola Original replacement battery for the XTS2500 is Motorola part # NTN9858C. It is 7.2 volts, 2100mAh (milliamp hours), NiMH (nickel metal hydride). With the Motorola IMPRES Technology.
This battery also fits radio models: XTS2500, MT1500, ST1500, PR1500XTS2500, MT1500, ST1500, PR1500
