Along with the Nomad 20 we used the Guardian 12-volt charge controller, which allows connection of a solar panel to a 12-volt lead-acid battery to monitor the charging of the battery.

PulseTech Products, Southlake, Texas, introduced the Xtreme Charge X2, a ruggedly designed dual-station 12-volt maintenance charger. In addition to providing dual station service to maintain and ...

This Low Dropout Voltage (LDO) solar charge controller uses a simple differential amplifier and series P channel MOSFET linear regulator –their compatibility seems like a marriage made in heaven.

Depending How They’re Wired, two 12-Volt Batteries Yield a 12-Volt System with Double the Amps, ... you can still use a 12-volt alternator to charge them.) Dual 12/24-volt system: ...