Looking for an Belkin Universal 800 battery? Then you've come to the right place. We have been selling batteries for Belkin Universal 800 UPSs online since 2003 and will have the correct battery for your UPS in stock, available for next day delivery. Use our Belkin Universal 800 battery guide below to find a suggested battery for your UPS and compare it to the battery fitted to your Universal 800. Need help? Simply contact us.