Guaranteed UPS Compatability Each APC RBC #140 is tested and approved by APC to restore the performance of UPS systems to the original operating specifications. This RBC conforms to safety regulations and maintains original UPS specifications and protection policies. The battery has an expected life of three to five years. Fully Assembled for Easy Hot-Swap Installation APC RBC #140 comes fully assembled with connections made with high-current, gas-tight crimps and fuses included, making hot-swap