The APC Smart-UPS 750 has a battery capacity of 500 watts.
Power Rating: The UPS is rated for 750 VA (Volt-Amperes) and 500 watts.
Function: The watt rating indicates the maximum amount of active power the UPS can supply to connected devices during a power outage.
Model Variations: While the base model is the Smart-UPS 750, specific model numbers like SMT750IC, SMV750I-MS, and SMT750C all share this 500-watt capacity.