ZZcell 2-Pack Battery For SportDog 650-058 / DC-17 / SD-800 KINETIC MH120AAAL4GC Dogtra FieldTrainer SD-400, SD-800 Receiver SD-400S, WetlandHunter Camo Dog Collar 150mAh Replacement Battery for Dogtra SDT00-11907 FieldTrainer SD-400 WetlandHunter SD-400 Camo / SD-800 Kinetic MH120AAAL4GC SportDog FieldTraner, PetSafe Yard & Park Remote Dog Trainer, PDT00-12470 RFA-417 PAC00-12159 FR-200P Collar Receiver, SportDog FR200, SD-400, SD-800 No memory effect. Can be charged or discharged as needed without loss of capacity. Compatible Part #s:DC-17, 4SN-1/4AAA15H-H-JP1, DC-17_5, MH120AAAL4GC, 650-058 Overcharge protection, with built-in battery life microchip. 100% compatible with Original Battery