Solar Charging System for RV with 6V and 12V Batteries

Updated 10/22/2018 | Published 10/20/2018

Products Featured in This Question

CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power

(94)

$199.99

Go Power PWM Solar Charge Controller with USB Port - LCD Digital Display - 10 Amp - 12V

(24)

$111.99

Question:

hello and thank you. i have two 12 volt and six 6 volt batteries can i connect these all together to my solar and how? right now i have two 100 watt solar panels. thank you again.

asked by: Marcus

Expert Reply:

In order to have multiple solar panels provide trickle re-charging to an array of RV batteries you need to have a controller that can manage the output from the panels. My contact at Go Power! said that most 100 watt solar panels output 20 volts and this is simply to much for 12V and 6V batteries even if multiple ones are wired together. A controller like # 34280503 is essential for ensuring the panels' output is stepped down to the appropriate voltage/current to prevent overcharging.

I suggest you contact the maker of your solar panels to find out more about their requirements and compatibility with your batteries. They should be able to tell you if your two panels are adequate for the total number of batteries you have and what regulator you need to properly feed the panels' output to those batteries.

expert reply by: Adam R