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The GENERAC a0006487350 is an AGM HDX 20L battery designed for use with GENERAC air-cooled standby generator systems. AGM (Absorbent Glass Mat) batteries are a sealed, maintenance-free battery type that provides reliable cranking power for engine-start applications. This battery supports the standby generator's ability to start automatically during a power outage. It is sized and specified for residential and light commercial standby power installations where dependable cold-start performance is critical. Installation is typically performed by a licensed electrician or generator service technician during initial setup or routine maintenance.
This battery is the OEM-specified replacement for GENERAC air-cooled standby generators rated at 24 kW. It is used in both residential and commercial standby power applications where natural gas or liquid propane-fueled generators provide automatic backup power. The HDX 20L form factor is matched to the generator enclosure's battery tray and connection terminals, making it a direct-fit service replacement. Technicians replacing a failed or aged starting battery should confirm the battery group size and terminal orientation before installation.
Specified for use with GENERAC 24 kW (22.5 kW LP) air-cooled standby generators operating on natural gas or liquid propane, single-phase, 120/240 VAC output. Referenced directly in GENERAC documentation for the a0006487350 battery application.
Battery replacement on a standby generator should be performed by a qualified electrician or certified generator service technician. Before servicing, disconnect the generator from utility power and disable the automatic transfer switch to prevent automatic starting during the procedure. Follow the generator manufacturer's service manual for proper terminal connection sequence and torque guidance. Dispose of the old battery in accordance with local regulations governing lead-acid battery recycling.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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