To measure the voltage of the panel use a voltmeter.
Voltage of a 2 watt solar panel battery maintainer.
The 2 watt 12 volt solar battery maintainer comes in 2 generations one with a little blue light on the frame and one without.
The open circuit voltage reading should be between 16 and 25 volts in full sun not connected to the battery.
Use the power of the sun to maintain and prevent your 12 volt batteries from dying anywhere anytime.
Nature power 2 watt solar battery maintainer takes the sun s energy and turns it into electric current and delivers a small current to your rechargeable 12 volt batteries to promote the longevity and health of the battery.
The one without the light is completely weatherproof.
Coleman 2 watt 12 volt solar battery maintainer.
The coleman 2 watt solar battery maintainer works in all lighting conditions even on cloudy days.
No more dead batteries.
Strongway amorphous solar panel battery maintainer kit 2 watts.