Looking for an APC RBC48 battery? Then you've come to the right place. We have been selling batteries for APC RBC48 UPSs online since 2003 and will have the correct battery for your UPS in stock, available for next day delivery. Use our APC RBC48 battery guide below to find a suggested battery for your UPS and compare it to the battery fitted to your RBC48. Need help? Simply contact us.