MPPT Solar Charge Controller
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Description
You will need a controller to prolong the battery life of your PV System. The most basic function of a controller is to prevent battery overcharging. If batteries are allowed to routinely overcharge, their life expectancy will be dramatically reduced. A controller will sense the battery voltage, and reduce or stop the charging current when the voltage gets high enough. This is especially important with sealed batteries where we can't replace the water that is lost during overcharging.
A PV controller also prevents reverse current flow at night. Reverse current flow is the tiny amount of electricity that can flow backwards through PV modules at night, discharging the battery, but the loss of power is insignificant. Only with larger PV systems is this significant but almost all charge controllers deal with it automatically.
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MPPT Solar Charge Controller
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