The original APC replacement battery (RBC) is tested and certified for 100% compatibility with the respective APC UPS. This lead-acid RBC has a lifespan of three to five years. This provides reliable support and extends the service life of your UPS. The APC RBC is delivered fully assembled and ready for use. To view the list of compatible UPS models, please click the "Find Your Replacement Battery" button in the "Support" section.