APC Smart-UPS Battery Systems

APC Smart-UPS battery systems include replacement battery cartridges for maintaining the UPS and external battery packs used to extend runtime on supported extended-runtime models.

Battery compatibility is tied to the exact UPS model. Voltage, connector, battery management, mechanical fit and firmware or communications requirements can differ even when two battery assemblies look similar.

For runtime expansion, start with the critical load in watts and required operating time, then use the compatible APC battery configuration for that UPS.

Replacement Battery vs. External Runtime Battery

A replacement battery cartridge restores the internal battery system of a supported UPS. An external battery pack adds energy storage to a UPS designed for extended runtime. They serve different purposes and should not be treated as interchangeable products.

Battery age, temperature, discharge history and load affect realized runtime. After battery replacement or expansion, follow APC procedures for installation, charging and any required runtime calibration or battery configuration.

• Exact UPS model number.
• APC-supported replacement battery cartridge or external pack.
• Required runtime at the actual load.
• Available rack/floor space and battery-pack weight.
• Battery replacement, recycling and maintenance plan.

Frequently Asked Questions

How do I find the correct APC replacement battery?

Use the exact UPS model to identify the genuine APC replacement battery cartridge. Do not select only by nominal battery voltage.

Does adding an external battery pack increase UPS power capacity?

No. External batteries increase stored energy and runtime; they do not increase the UPS inverter power rating.