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Catalogue · 6 products

Solar Charge Controllers

Charge controllers for 12 V and 24 V battery banks, in both types: PWM at 20 A and 30 A for small arrays, and MPPT at 20 A, 40 A and 60 A for anything larger.

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The controller sits between the panels and the battery and stops the battery being overcharged. PWM is the simple, low-cost type and is fine for a panel or two of 12 V nominal type. MPPT converts surplus panel voltage into extra charging current, which is worth 20 to 30 percent more harvest and lets you use higher-voltage panels and longer cable runs.

Choose by the array's current at your battery voltage with 25 percent headroom, and check the array's open-circuit voltage against the controller's input limit. Each listing gives both figures, and both types are set up for LiFePO4 charging.

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Solar Charge Controllers
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