Victron Energy electrical system

Victron CCGX screen image

We decided to install electrical components that would talk to each other as a system, so that we can control everything from one location rather than crawling around in the back of the van.

Victron Energy make a series of products that are sturdy, well engineered, and have been proven in home and marine installations for several years. They are a Dutch company but they sell worldwide.  Continue reading “Victron Energy electrical system”

Solar panels are alive and charging

The almost 800 Watts of solar panels on the van did a great job charging the battery on our recent trip. The charger took a little bit of custom configuration, but the menus were easy enough to work with and now everything works well.

I started off with the default charge controller settings for a Lithium battery, but once the battery got close to full, the charger made the battery management system upset. The BMS wanted 13.5 volts float charge, the charger was producing 13.8. Not enough to hurt the battery in the short term, but something that I needed to take care of. If nothing else, I wanted to stop the BMS light from coming on!

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Turning sunlight into power – a solar controller

Your solar panel doesn’t produce a steady voltage or current, so it’s not a good idea to hook it straight to your devices or battery. Our panels, for instance, can produce 38 volts or more. That would fry any regular 12v equipment.

Luckily, solar controllers are designed to take the varying voltage and current and turn it into a steady output. There are two main types of controller – MPPT (Maximum Power Point Tracking) and PWM (Pulse Width Modulating). Victron has a nice technical document explaining the differences between MPPT and PWM (PDF). It boils down to this: MPPT technology will get more power out of your panels, and is useful with more types of panel, but costs a little bit more up front.

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