Originally posted by Brazos Hunter
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Here is the one that I bought;
http://www.ebay.com/itm/141024539209...84.m1497.l2649
You want to find an MPPT controller. Add up the total amperage you will probably end up with in solar panel power and make sure that the charge controller you buy can handle the power. It is always better to go with a higher rating than too small of a rating. For example, a 10 amp MPPT controller would handle 2 of those panels that you ordered, but would be too small when you add 2 more (for a total of 4 of those flexible panels).
I bought a 20 amp MPPT controller so I can upgrade to more panels down the road. If you are thinking you might be adding a bunch more panels down the road then you might want to go with a 30 amp controller to give you room for future upgrades.
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