How Many House Batteries Do I Need for My Solar System

Updated 12/28/2020 | Published 12/23/2020

Products Featured in This Question

Go Power Solar AE-6 All Electric System with 3 MPPT Solar Controllers - 1,200 Watt Solar Panels

(18)

$2847.99

Redarc The Manager30 Battery Management System with Lithium Profile

(3)

$1849.00

Question:

Good day I have three House Batteries in my Motor Home and I got two solar panels on my roof of the motor home and I would like to add some more panels the panels that are up there one panel is 170 and the other is 190 and I have four new 100 wat panels how many screws batteries should I run on this Go power System I got

asked by: Bruce S

Expert Reply:

You'll need to add at minimum 1 battery and you could add as many as 3 since solar systems of this size typically recommend between 4-6 house batteries to store all of the power produced by almost 800w of solar panels. For reference, the Go Power Solar AE-6 All Electric System with 3 MPPT Solar Controllers - 1,140 Watt Solar Panels # 342-75011 you were looking at recommends between 4 and 8 batteries for use with that system.

The other thing you might want to consider is getting an active battery management system like the The Manager30 Battery Management System with Lithium Profile # RED88FR. This unit acts as an auxiliary battery charger, 110-volt charger, solar regulator, battery isolator, load disconnect controller, and remote battery monitor all in one system so you'll always know exactly how much power you're using and where your batteries are charged to.

I've linked a short review video of this unit that I recommend checking out, but if you're pouring a lot of money into expensive batteries this is definitely the best way to ensure that everything is properly taken care of. I've also linked one of our helpful articles on solar power which breaks down how many batteries are recommended for each system.

expert reply by: Erik B