PowerWarehouse APCRBC159-PW laptop battery 159 1500 13.5 8.50 3.25 26.8 30 18

Replacement Battery Cartridge #159

This sealed lead-acid cartridge replaces APC Battery Cartridge #159 and fits the SMT1500RM2UC and SMT1500RMI2UC uninterruptible power supplies. It arrives new and ready to install without any configuration or fluid handling. The maintenance-free design eliminates the risk of leaks during transport or while mounted in a rack. Buyers who need a different form factor or chemistry should verify their UPS model before ordering.

Fits SMT1500RM2UC and SMT1500RMI2UC

The only specification that determines fit is the exact model number of the UPS unit; this cartridge is validated for the SMT1500RM2UC and SMT1500RMI2UC only. It matches the original dimensions of 13.5" L x 8.50" W x 3.25" H and weighs 26.8 lbs so it seats correctly in the battery compartment. Installing it in any other chassis will result in a physical mismatch or connection failure.

Maintenance-Free Sealed Lead-Acid Operation

The sealed lead-acid cells deliver steady voltage throughout extended discharge cycles rather than peaking briefly and fading. Because the electrolyte is immobilised, the cartridge tolerates continuous float charging and deep discharge recovery without venting or capacity loss. An 18-month warranty covers the unit against premature degradation under normal UPS duty cycles.