The state-of-the-art lead-acid battery is the valve-regulated type (sometimes called “sealed” or maintenance-free), which fixes the acid electrolyte in a gel or in an absorptive fiberglass mat. The advantage of this design is that the battery needs no water additions, can be operated in any position, and can be used in close proximity to people and sensitive equipment. Maintenance free. Sealed no leak design. Higher cranking amps. Lower self discharge. Greater vibration resistance. Heavy duty, no corrosion terminals.

Boss Buck 12v batteries have F-1 terminals/posts.
They fit F-1 clips (.187 wide) slide on battery posts.

12V 7ah Battery

This 7ah battery works in most 12 volt feeder systems. Pair this with a 12 volt solar panel and you will have a maintenance free system for many years under normal conditions.