Solar Charge Controllers

Match PV voltage, array current, battery chemistry, and charge output before you buy. Our reviews, comparisons, and sizing guides make every limit easier to check.

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Solar Charge Controllers

Best Solar Charge Controller Buying Guides

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Best MPPT Solar Charge Controllers: 5 Picks by System Type featured image

Best MPPT Solar Charge Controllers: 5 Picks by System Type

Best PWM Solar Charge Controllers: 5 Practical Budget Picks featured image

Best PWM Solar Charge Controllers: 5 Practical Budget Picks

Best Solar Charge Controllers for RVs: 5 Sized Picks featured image

Best Solar Charge Controllers for RVs: 5 Sized Picks

Best Solar Charge Controllers for LiFePO4: 5 Configurable Picks featured image

Best Solar Charge Controllers for LiFePO4: 5 Configurable Picks

Best Waterproof Solar Charge Controllers: 5 Outdoor Picks featured image

Best Waterproof Solar Charge Controllers: 5 Outdoor Picks

Best Budget Solar Charge Controllers: 5 Low-Cost Picks featured image

Best Budget Solar Charge Controllers: 5 Low-Cost Picks

Solar Charge Controller Comparisons

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Renogy Rover vs Wanderer: 30A MPPT and PWM Compared featured image

Renogy Rover vs Wanderer: 30A MPPT and PWM Compared

Victron SmartSolar 75/15 vs 100/20: Limits Compared featured image

Victron SmartSolar 75/15 vs 100/20: Limits Compared

30A vs 40A Solar Charge Controller: Two Real Models Compared featured image

30A vs 40A Solar Charge Controller: Two Real Models Compared

Victron vs Renogy Solar Charge Controllers: 20A Models Compared featured image

Victron vs Renogy Solar Charge Controllers: 20A Models Compared

Victron SmartSolar 100/30 vs Renogy Rover 40A featured image

Victron SmartSolar 100/30 vs Renogy Rover 40A

Solar Charge Controller Guides

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Solar panel, charge controller, and battery connected in an off-grid charging system

What Is a Solar Charge Controller?

Solar charge controller sizing workbench with solar array, battery, meter, and calculator

How to Size a Solar Charge Controller

Safe solar charge controller wiring with a fused battery connection

How to Wire a Solar Charge Controller Safely

LiFePO4 battery and solar charge controller with temperature-aware charging settings

Solar Charge Controller Settings for LiFePO4 Batteries

Solar charge controller protecting the connection between a solar panel and battery

Can You Connect Solar Panels Directly to a Battery?

Testing a solar charge controller with a multimeter during troubleshooting

Solar Charge Controller Troubleshooting: A Safe Checklist

Solar Charge Controller Reviews

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Renogy Rover 20A Review: A Capable MPPT for Small Systems

Renogy Rover 20A Review: A Capable MPPT for Small Systems

Victron SmartSolar 100/20 Review: Compact Control from 12V to 48V

Victron SmartSolar 100/20 Review: Compact Control from 12V to 48V

Renogy Rover 30A Review: The Useful Middle Size—with Mounting Friction

Renogy Rover 30A Review: The Useful Middle Size—with Mounting Friction

Renogy Adventurer Li 30A Review: The Flush-Mount RV Specialist

Renogy Adventurer Li 30A Review: The Flush-Mount RV Specialist

Renogy Voyager 20A Review: Waterproof PWM with Clear Limits

Renogy Voyager 20A Review: Waterproof PWM with Clear Limits

Renogy Wanderer 10A Review: Budget PWM with Useful Controls

Renogy Wanderer 10A Review: Budget PWM with Useful Controls

Rolokit 30A PWM Review: A $10 Battery Maintainer, Not a 30A Design Basis

Rolokit 30A PWM Review: A $10 Battery Maintainer, Not a 30A Design Basis

SOLPERK 10A Waterproof Review: Verify Polarity Before You Trust It

SOLPERK 10A Waterproof Review: Verify Polarity Before You Trust It

Solar Charge Controller Size Calculator

Use this quick calculator to get a rough estimate before comparing products.

Solar Charge Controller Size Calculator

What size charge controller do I need?

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