This bundle contains two compatible APC UPS battery replacements to keep your UPS performing optimally. The first is an APC RBC109 replacement battery cartridge designed for the BR1500LCD, BR1200G, BR1300LCD, and BX1500LCD APC UPS models. It is a sealed lead acid VRLA battery that restores your UPS to its original specifications. The 2-year warranty ensures this battery replacement will provide reliable performance. The second is an APC RBC163 replacement battery compatible with the BR1500MS2 APC UPS model. Like the RBC109, it is a sealed lead acid battery that brings your UPS back to its original working order. Both batteries are tested and approved by APC to guarantee full compatibility and optimal UPS functioning after installation. With two vital UPS batteries, this bundle lets you conveniently replace existing batteries or prepare spares for your compatible APC UPS units.