---
product_id: 444438513
title: "SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive"
brand: "suner power"
price: "₨101385"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/444438513-suner-power-20w-12v-solar-battery-trickle-charger-and-maintainer
store_origin: LK
region: Sri Lanka
---

# 20W high power output Waterproof & weatherproof durability UltraSmart MPPT tech boosts 99% tracking SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive

**Brand:** suner power
**Price:** ₨101385
**Availability:** ✅ In Stock

## Summary

> 🔆 Power your adventures with smart, worry-free solar charging!

## Quick Answers

- **What is this?** SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive by suner power
- **How much does it cost?** ₨101385 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/444438513-suner-power-20w-12v-solar-battery-trickle-charger-and-maintainer)

## Best For

- suner power enthusiasts

## Why This Product

- Trusted suner power brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Convenience:** Pre-drilled mounting and ready-to-go cables make setup a breeze—get powered up in minutes.
- • **Universal Compatibility:** Seamlessly supports 12V lead-acid, AGM, gel, lithium, and deep-cycle batteries across automotive, marine, and RV uses.
- • **Built to Brave the Elements:** Rugged, corrosion-resistant frame and tempered glass withstand hail, sandstorms, and heavy snow loads.
- • **Next-Level Charging Efficiency:** Harness 20-30% more power with UltraSmart MPPT technology for faster, smarter battery maintenance.
- • **3-Stage Intelligent Battery Care:** Bulk, Absorption, Float charging cycles optimize battery health and extend lifespan effortlessly.

## Overview

The SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO features advanced UltraSmart MPPT technology delivering up to 99% tracking efficiency and 98% peak conversion. Its 3-stage charging algorithm ensures optimal battery health, while a waterproof, corrosion-resistant design guarantees durability in extreme weather. Compatible with a wide range of 12V batteries, this plug-and-play solar panel kit is perfect for cars, marine vessels, RVs, and more, providing reliable, maintenance-free power wherever you go.

## Description

SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive

## Features

- 【 UltraSmart MPPT Technology 】This 12v solar panel battery charger is crafted with SUNER POWER's unique UltraSmart MPPT technology, so all of its core parts, including its mppt charge controller and solar panel are built using premium and durable materials. The innovative MPPT-Charge-Controller-Technology allows to deliver high tracking efficiency of up to 99% and peak conversion efficiency of 98%, improve approximately 20%-30% utilization rate than other competitors.
- 【Improved 3-stages Charging】The improved 3-Stages charging algorithm (Bulk, Absorption, Float) allows to charge 12-volt battery more effectively, ensures battery is safely recharged and increases battery life and performance. The charging will be cut off when battery is fully charged, and automatically resumed when battery is not full, totally free maintenace.
- 【 Full Safety Protections 】Built-in multiple protections including over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature, waterproof and spark-proof, the battery is fully protected.
- 【 Wide Compatibility】It's not just a solar battery trickle charger, it's an advanced solar battery charger maintainer. A fully-automatic, worry-free smart solar battery charger for 12-volt sealed lead-acid car, automotive, marine, RV, powersport, boat, dump trailer, motorcycle, trolling motor, tractor, ATV and deep-cycle batteries, including flooded, gel, AGM, SLA and maintenance-free, plus lifepo4 lithium batteries.
- 【 Superior Quality and Material】Made of premium Grade A+ solar cells with efficiency up to 21%-30%, tempered solar glass and durable corrosion-resistant frame, withstand extreme weather conditions like UV, anti-rusting, and erosion, hail, and sandstorm, up to 2400Pa wind pressure and 5400Pa snow load.
- 【 Easy to Use 】Using the most advanced MPPT charge controller chip, this solar trickle battery charger maintainer starts to charge immediately when battery is registered. Pre-designed holes on solar panel frame allows for quick mounting with included screws, and all cables are plug and play, offering you easy and quick using experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 52.7 x 35.56 x 4.57 cm; 2.31 Kilograms |
| Batteries required | No |

## Product Details

- **Brand:** SUNER POWER
- **Colour:** Navy Blue
- **Product dimensions:** 51.2D x 35W x 1.8H centimetres
- **Output voltage:** 12 Volts
- **Specification met:** UL

## Images

![SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive - Image 1](https://m.media-amazon.com/images/I/8181FZ6IWhL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: Will this work for lithium battery**
A: Yes

**Q: how long does  a 12 v battery take to charge in perfect sun**
A: It depenses on your battery capacity. The 20W Solar charger generates 1A more or less current in perfect sunshine, it will take 12hour to fully charge 12Ah battery from 0 to 100%

**Q: Can I just leave this panel in my car's back window facing the sun, connected to my car's battery when not in use to trickle charge the battery ?**
A: Yes..that's the way I have it on my truck.

**Q: out of box dimensions?**
A: 20.15" L x 13.78" W x 0.67" H

## Frequently Bought Together

- SUNER POWER 20W 12V Solar Battery Trickle Charger & Maintainer PRO, Built-in Intelligent MPPT Controller, Waterproof 12 Volt 20 Watt Solar Panel Charging Kits for Car Marine RV Trailer Boat Automotive
- OYMSAE 25Feet SAE to SAE Extension Cable Quick Disconnect Connector 16AWG,for Automotive,Solar Panel Panel SAE Plug(25FT(16AWG)), Charging Adapter
- SUNER POWER Waterproof 12W 12V Solar Battery Charger & Maintainer Pro, Built-in UltraSmart MPPT Charge Controller, 12 Volt Solar Panel Trickle Charging Kits for Car Automotive Boat Marine RV Trailer

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**Shop now:** [https://www.desertcart.lk/products/444438513-suner-power-20w-12v-solar-battery-trickle-charger-and-maintainer](https://www.desertcart.lk/products/444438513-suner-power-20w-12v-solar-battery-trickle-charger-and-maintainer)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-24*