Replacement Battery Set for OPTI-UPS DS20000B UPS

Direct replacement battery set designed specifically for the OPTI-UPS DS20000B uninterruptible power supply. Restore original backup runtime and reliable protection against outages with batteries matched to the DS20000B specifications for a straightforward swap. Sold as the battery set only — UPS chassis and accessories are not included. Compatible with OPTI-UPS DS20000B units and intended to meet the manufacturer’s replacement requirements.