Sun Energise 20W 12V Solar Charger & Maintainer with MPPT — Waterproof Panel Kit

Overview

The Sun Energise 20W 12V Solar Charger & Maintainer combines smart MPPT power tracking with a durable solar panel designed for outdoor use. This kit is built to monitor and sustain 12V battery levels across a range of vehicles and installations, from cars to boats and RVs. The integrated controller works quietly in the background, helping you keep batteries topped up even when solar input fluctuates.

Performance highlights

• Smart MPPT technology with protection system delivers high tracking efficiency up to 99% and peak conversion up to 98%, improving utilization by an estimated 20%–30%.
• Upgrade to a three-stage charging algorithm (Bulk, Absorption, Float) for safer charging and stable battery maintenance without ongoing manual intervention.
• LED indicator provides a clear view of charging status; charging automatically pauses when full and resumes when needed.

Durability and protection

• Robust construction uses A+ mono solar cells with 21%–30% efficiency, tempered glass, and a corrosion‑resistant ABS frame.
• IP65 waterproof rating, wide temperature tolerance, and frame designed to withstand UV exposure, hail, and wind loading up to 2400 Pa.
• Built-in protection for over-charge, over-discharge, over-voltage, over-current, short circuit, reverse polarity, and over-temperature.

Compatibility and ease of use

The charger is designed as a versatile solar trickle charger and maintainer for a broad mix of 12V batteries, including gel, Deep Cycle, SLA, Flooded, AGM, Seal-Lead Acid, and LiFePO4. Installation is straightforward with pre‑drilled mounting holes and plug‑and‑play cables, enabling quick setup for cars, boats, RVs, trailers, and more.

Real-world use

Whether you store a vehicle for the off-season, keep a marine battery charged at the dock, or top up a trolling motor between outings, this kit offers a practical, maintenance-friendly charging solution. It’s designed to operate autonomously, providing ongoing support without requiring constant supervision.