12V Battery Maintainer
The Battery Maintainer is the best device available to ensure that your battery will always be "topped off" and fully charged. It has the capacity to keep any 12 volt battery charged with as little as one full hour of sunlight per day. The life of your battery will be dramatically extended by using the Battery Maintainer.

It features a diode to prevent the battery from discharging on cloudy days or at night. It is constructed with a glass face and black molded base. Size: 5-1/4" x 11" x 3/8" thick. Output: 100 ma 16 VDC full sunlight. Connects to battery via 12V "hot" cigarette lighter plug in aircraft. For 24 volt use two units. LED Light not included.