PHYSIO CONTROL LIFEPAK 500 AED BATTERY (3208231-000). Non-Rechargeable Replacement Battery for the Physio-Control LifePak 500 Defibrillator. Alternate numbers: 5L500, 3005380-026, 11141-000013, 11141-000147, 11141-000158 and 3200390. Li-So2, 12V, 7500mAh. Price per each. LIMITED SUPPLY (to be discontinued).