---
product_id: 279820161
title: "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"
brand: "suner power"
price: "VT27084"
currency: VUV
in_stock: true
reviews_count: 8
category: "Suner Power"
url: https://www.desertcart.vu/products/279820161-waterproof-12w-12v-solar-battery-charger-and-maintainer-pro-built
store_origin: VU
region: Vanuatu
---

# 12W Power Output Waterproof & Weatherproof UltraSmart MPPT 99% Tracking 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

**Brand:** suner power
**Price:** VT27084
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by suner power
- **How much does it cost?** VT27084 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/279820161-waterproof-12w-12v-solar-battery-charger-and-maintainer-pro-built)

## 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 Simplicity:** Instant start with pre-drilled mounting holes and included suction cups—get your solar charger up and running in minutes.
- • **Universal Compatibility:** Seamlessly powers 12V sealed lead-acid, AGM, gel, lithium, and deep-cycle batteries across cars, boats, RVs, motorcycles, and more.
- • **Maximize Your Battery Life:** Advanced 3-stage charging (Bulk, Absorption, Float) ensures safer, longer-lasting battery performance.
- • **Built to Brave the Elements:** Durable tempered glass and corrosion-resistant frame withstand UV, hail, sandstorms, and heavy rain for year-round reliability.
- • **Effortless Solar Maintenance:** Smart trickle charging automatically stops and resumes to keep your battery perfectly topped off—zero hassle, zero maintenance.

## Overview

The SUNER POWER 12W 12V Solar Battery Charger & Maintainer Pro features cutting-edge UltraSmart MPPT technology delivering up to 99% tracking efficiency and 98% peak conversion. Its improved 3-stage charging algorithm maximizes battery health and lifespan while providing full safety protections including waterproofing and spark-proof design. Compatible with a wide range of 12V batteries, this durable, weather-resistant solar panel is perfect for automotive, marine, RV, and outdoor power needs, offering effortless plug-and-play installation and maintenance-free operation.

## Description

desertcart.com: 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 : Patio, Lawn & Garden

Review: Suner Power 12W 12V Solar Battery charger Pro - 2 month review - I have a late model 5th gen 4Runner, purchased new. It isn't driven very often: after two years, it has amassed a whopping 3000 miles :) Great vehicle for me, but unfortunately, the telematics on this vehicle (SOS button, auto dial in the event of a serious crash, etc.) pre-dispose it to parasitic battery drain. This is a common problem for these vehicles if driven infrequently, a Toyota problem; my 15 yr old Ford P/U has similar telematic features but cranks without fail, even though it gets the same intermittent use. After replacing the battery twice on a virtually new car, I tried this solar charger. I've had it going on three months now. I leave it connected to the terminals and disconnect it quickly, using the quick disconnect lead included by the manufacturer. It stores easily in the seat pocket behind the driver seat. Compact, weatherproof and durable with nothing to switch on/off, it comes with an led indicator to show what it's doing once connected. Blinking green shows 'ready' and blinking red indicates current is flowing to the battery. Circuitry prevents over charging. As simple as that to use. I monitor the charging performance and battery state using an Ancel BM300 Bluetooth Battery Monitor ($35 on desertcart) which sends info to my cell phone at designated intervals or on demand. The battery is always topped off and ready to go. Problem solved. The desertcart listing shows suction cups that permit sticking the panel to a suitable surface while in use. I didn't receive suction cups with my charger (an omission, I believe) but that's not a problem. I affixed four coin-sized magnets to the reverse side which secures it to the hood or roof when in my driveway. If using it in a less secure location, I would keep it inside the vehicle, flat on the dash. The harness has a generous length, making routing to different spots simple. Would I purchase this again? Yes. 5 stars for simplicity, performance and ease of use.
Review: Great Solar Charger - I purchased this to charge my boat battery during the off season. I noticed the panel was charging and the light would turn green when fully charged. After several months the boat started and the battery was fully charged. This is a great product and worked as described.

## Features

- 【Ultra-Smart MPPT Technology】This 12v solar panel battery charger is crafted with SUNER POWER's unique Ultra-Smart MPPT( Max Power Point Tracking) technology, the innovative MPPT allows to deliver high tracking efficiency of up to 99% and peak conversion efficiency of 98%, improving 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
- 【Free Maintenance】The solar trickle charger stops charging when battery has full charge, and automatically resumes when battery has discharge, totally free maintenance. A fully-automatic, worry-free and smart 12volt solar charger
- 【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 powered battery charger, it's an advanced solar battery maintainer for 12-volt sealed lead-acid car, automotive, marine, RV, power sport, 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, erosion, hail, and sandstorm
- 【Easy to Use】Using the most advanced MPPT technology, this 12 volt solar battery charger starts charging immediately when it detects a battery. Pre-designed holes allow for quick mounting with included suction cups, and all cables are plug and play, offering easy and quick using experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08K2T4RPH |
| Best Sellers Rank | #2,646 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2 in Solar Battery Chargers & Charging Kits |
| Brand | SUNER POWER |
| Color | Navy Blue |
| Connector Type | DC power connector |
| Connector Type Used on Cable | DC power connector |
| Customer Reviews | 4.5 out of 5 stars 2,259 Reviews |
| Input Voltage | 18 Volts (DC) |
| Item Dimensions D x W x H | 16.5"D x 9.4"W x 0.6"H |
| Manufacturer | SUNER POWER |
| Mfr Part Number | BC-50W-P |
| Model Number | BC-50W-P |
| Number of Ports | 1 |
| Output Voltage | 12 Volts (DC) |
| Product Dimensions | 16.5"D x 9.4"W x 0.6"H |

## Product Details

- **Brand:** SUNER POWER
- **Color:** Navy Blue
- **Product Dimensions:** 16.5"D x 9.4"W x 0.6"H
- **Output Voltage:** 12 Volts (DC)
- **Input Voltage:** 18 Volts (DC)

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/81qs8VFJiWL.jpg)

## Available Options

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

## Questions & Answers

**Q: How many amps does the bc-5w pro generate?**
A: Max 0.27Amps for 5W; 0.56amps for 10w and 0.67amps for 12w

**Q: I plan on connecting this to our tractor full time. Can i still drive it without disconnecting it?**
A: Absolutely! Mine stays connected to my truck battery all the time and it works great! I live on an island and there are gaps between driving so this keeps my battery charged and ready when I get back to the island. I liked it so much I bought one for each of my vehicles.

**Q: Does this require a battery tender. I have a couple other solar charger which must have a tender to prevent overcharging**
A: Unlike other regular solar charger, the solar charger was built-in intelligent mppt charge controller chip to prevent over charge, over voltage, short circuit, no addtional battery tender is required.

**Q: The indicator light turned off and and it is almost dark. Does this mean**
A: The LED indicator is powered by sunlight, it will not come on if sunlight is not sufficient. Expose the solar panel to full sun, see if the light comes on? If not, pls get back to our support team thru email support@sunerpower.com

## Customer Reviews

### ⭐⭐⭐⭐⭐ Suner Power 12W 12V Solar Battery charger Pro - 2 month review
*by D***R on July 15, 2024*

I have a late model 5th gen 4Runner, purchased new. It isn't driven very often: after two years, it has amassed a whopping 3000 miles :) Great vehicle for me, but unfortunately, the telematics on this vehicle (SOS button, auto dial in the event of a serious crash, etc.) pre-dispose it to parasitic battery drain. This is a common problem for these vehicles if driven infrequently, a Toyota problem; my 15 yr old Ford P/U has similar telematic features but cranks without fail, even though it gets the same intermittent use. After replacing the battery twice on a virtually new car, I tried this solar charger. I've had it going on three months now. I leave it connected to the terminals and disconnect it quickly, using the quick disconnect lead included by the manufacturer. It stores easily in the seat pocket behind the driver seat. Compact, weatherproof and durable with nothing to switch on/off, it comes with an led indicator to show what it's doing once connected. Blinking green shows 'ready' and blinking red indicates current is flowing to the battery. Circuitry prevents over charging. As simple as that to use. I monitor the charging performance and battery state using an Ancel BM300 Bluetooth Battery Monitor ($35 on Amazon) which sends info to my cell phone at designated intervals or on demand. The battery is always topped off and ready to go. Problem solved. The Amazon listing shows suction cups that permit sticking the panel to a suitable surface while in use. I didn't receive suction cups with my charger (an omission, I believe) but that's not a problem. I affixed four coin-sized magnets to the reverse side which secures it to the hood or roof when in my driveway. If using it in a less secure location, I would keep it inside the vehicle, flat on the dash. The harness has a generous length, making routing to different spots simple. Would I purchase this again? Yes. 5 stars for simplicity, performance and ease of use.

### ⭐⭐⭐⭐⭐ Great Solar Charger
*by S***E on March 22, 2026*

I purchased this to charge my boat battery during the off season. I noticed the panel was charging and the light would turn green when fully charged. After several months the boat started and the battery was fully charged. This is a great product and worked as described.

### ⭐⭐⭐⭐⭐ Unit functioning well after 8 months, and great customer service
*by P***E on March 27, 2026*

I have had the solar charger hooked to my RV battery for 8 months, and it has been reliable in keeping the battery well charged thus far. I found it easy to install with clear instructions and several options provided for hook up. I recently had a question about the charger and thought it may not have been functioning properly (turns out it was). I sent an email to customer service, and it was responded to promptly. I was also reassured that the unit would be replaced immediately if there was indeed an issue in the future. Customer service is very important to me, and I found Suner Power's support to be outstanding.

## Frequently Bought Together

- 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
- OYMSAE 25Feet SAE to SAE Extension Cable Quick Disconnect Connector 16AWG,for Automotive,Solar Panel Panel SAE Plug(25FT(16AWG)), Charging Adapter
- LST 6FT 12V Ring Terminal SAE to O Ring Connecters Extension Cord Cable Connector for Battery Charger/Maintainer

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*