Stable lower-or-higher-than-battery voltage adjuster.
Sol-Up has unique feature that boosts voltage when battery is too low. Also reduces voltage when battery goes too high during charging. Maintains exact output voltage to sensitive equipment like a cell phone. Takes 8-16 volt input range from battery, stable output is user adjustable as needed from 5 volts to 24 volts. Two amp maximum current.
90 day warranty!