Parallel MPPT Charge Controllers in Tiny Space // How to // Solar // RV

Can you connect MPPT solar charge controllers together? Yes. Watch this video to learn WHY and HOW TO setup your MPPT solar charge controllers to charge a single battery bank. I'll show you the key components used for this project and how they are all hooked up. Finally, I'll show you the custom rack system I built to hold all of this stuff in my tiny solar compartment.

5:40 Connecting Solar Charge Controllers in Parallel
12:00 Custom Rack Build, Wiring, Installation

PARTS USED FOR THIS PROJECT
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WIRING DIAGRAMS and OVERVIEW of OUR RV SOLAR
I've updated our solar design on our website to include all of the latest gear. Check it out here: http://www.rvwithtito.com/articles/ou...

MORE ABOUT THIS PROJECT

When to use multiple MPPT solar charge controllers?
The primary reason to do this is when you want to charge a single battery bank from more than one solar array. Each solar array should have its own solar charge controller.

How to make multiple MPPT solar charge controllers work together?
Your system should be setup as follows:
(1) Charge profiles should be the programmed the same for all MPPT solar charge controllers
(2) Solar charge controller outputs should be connected in parallel (all negatives joined together, all positives joined together) and positioned at the same distance from the parallel connection.
(3) Follow manufacturer’s recommendation for combining charge controllers (my Victron controllers need to linked together on the same bluetooth network to become aware of each other). The goal is to make sure all charge controllers switch charging phases together.

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The opinions expressed in our videos are our own or from a contributor. Before taking on any project or making a large purchase, we recommend you do your own research and consult a professional for advice. We are NOT liable for any damage to your RV or injury incurred as a result of following our tips, advice or instructions. We are not RV professionals or certified technicians. We are simply RV owners who work on our own RVs and have a desire to share what we learn with others. Be responsible and know your limits.

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