Generac Part 0H3421S Battery, Group 26R
The Generac Part 0H3421S (sometimes listed as 0H3421S) is not a generator unit or a maintenance kit; it is the recommended starter battery for a wide range of Generac standby generators. This battery is essential because every standby generator requires a reliable 12-volt power source to automatically crank the engine when a utility outage occurs. The battery's sole purpose is to provide the high cranking amperage necessary to automatically start the generator's engine upon receiving a signal from the Automatic Transfer Switch (ATS) or controller.
Features
Near-Universal Fit:
- The 26R Group size is standardized and designed by Generac to fit within the battery trays of virtually all residential air-cooled standby generator models.
Shipping Restriction:
- Because it is a wet cell battery, the 0H3421S is often restricted from standard shipping methods (like UPS/FedEx) and typically requires local pickup (Will Call) or freight delivery due to safety regulations.
Low Maintenance:
- While it is a wet cell battery, the generator's internal battery charger (built into the controller) constantly maintains the charge, ensuring it is ready for use.