Zamp Solar Digital Deluxe 10 Amp 5 Stage PWM Waterproof/Weatherproof Digital Solar Charge Controller - ZS-10AW
Zamp Solar's newest Digital Deluxe Solar Charge Controller. 10 Amp 5 Stage PWM Waterproof/Weatherproof Digital Deluxe Solar Charge Controller helps keep your batteries at their fullest charge for best battery health. For Gel, AGM, Conventional Lead Acid (WET) and Calcium Batteries
Typical RV batteries are replaced between 2 and 3 years depending on how many times they are depleted, how far depleted and what kind of charger was used to recharge them. Using a PWM solar charge controller with solar can extend your battery life up to 3 times. It's not uncommon for batteries on PWM controlled solar charging to last for 9 to 10 years plus.
A high quality charge controller is an essential component to your solar system, it's the brain that communicates with the battery(s) and the solar panels to coordinate the power allocation. A high quality solar charge controller for 12 volt solar system below 500 watts should have PWM (Pulse Width Modulation) technology. PWM provides the battery with the proper voltage at the proper time for best battery health. Depending on what the charge of the battery is, how long it has been charging and in some cases the temperature of the battery will tell the solar charge controller how much voltage the battery needs for recharging.
Take care of batteries and they will take care of you.