Generac 0F5901 Top Cover w/ Battery Holder For 0F5926 HTS Controller. Does not include batteries. For controller PCB, see here: Generac 0F5926 HTS Controller For Transfer Switch
For replacement batteries, see here: Generac 0F5180 AAA Rechargeable Battery for HTS Transfer Switch Controller
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, & Bryant.
If you need Generac generator troubleshooting support, please visit our interactive forum