Sunapex 12V 20A solar charge controller is designed to efficiently manage solar input from panels under 300W, making it a dependable core for small to mid-size off-grid setups. It is designed for 12V batteries only and is not compatible with 24V or 36V packs. Note: No polarity converter is included; connect the solar panel and battery with correct polarity.
The upgraded 20A PWM charging controller delivers more current than typical 10A designs, helping you maximize charging when sun is abundant. Its optimized charging algorithms move power from panel to battery with greater efficiency and intelligence.
Plug & play with upgraded SAE connectors for a secure, quick connection. For best results, connect the solar panel first, then the battery, ensuring correct polarity.
The design minimizes idle power draw (zero battery drain) and includes diodes to prevent reverse current after sunsetkeeping your battery ready for the next sunny day.
Two outputs, Type-C and USB, let you power devices directly from the sun or your battery. A comprehensive protection system guards against Overcharge, Over-voltage, Reverse Current, Reverse Polarity, Short-Circuit, and Over-temperature.
Compatible with a wide range of 12V batteries including Lead-Acid, Gel, AGM, and LiFePO4. The smart 4-stage charging sequenceBulk, Absorption, Float, and Equalizationhelps maintain battery health and readiness without overcharging.
SUNAPEX provides 24/7 after-sales service and a one-year warranty to help you feel confident about your solar setup.
Q: What 12V battery types does the SUNAPEX 20A solar charge controller support?
A: Supports LiFePO4, Gel, AGM, and Lead-Acid 12V batteries for versatile setups.
Q: Is this controller suitable for 24V or 36V systems?
A: No. It is designed for 12V systems and panels under 300W.
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