---
product_id: 475933980
title: "SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine"
brand: "sunapex"
price: "€ 130.27"
currency: EUR
in_stock: true
reviews_count: 11
category: "Sunapex"
url: https://www.desertcart.it/products/475933980-sunapex-12v-30-watt-solar-trickle-charger-maintainer-waterproof-solar
store_origin: IT
region: Italy
---

# Built-in smart controller prevents overcharging IP67 waterproof for all-weather durability 30W max power for steady battery maintenance SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine

**Brand:** sunapex
**Price:** € 130.27
**Availability:** ✅ In Stock

## Summary

> ☀️ Power your freedom with smart solar charging—never get stranded again!

## Quick Answers

- **What is this?** SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine by sunapex
- **How much does it cost?** € 130.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/475933980-sunapex-12v-30-watt-solar-trickle-charger-maintainer-waterproof-solar)

## Best For

- sunapex enthusiasts

## Why This Product

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

## Key Features

- • **Smart Charge Control:** Advanced built-in controller stops overcharging and battery drain, extending battery life.
- • **Weatherproof Powerhouse:** IP67-rated waterproof design means reliable solar charging rain or shine—never miss a charge.
- • **Visual Charge Confidence:** Three LED indicators keep you informed at a glance—sunlight, charging, and full battery status.
- • **Portable & Flexible Setup:** Lightweight, flexible panel with suction cups and carabiners for easy installation anywhere you need it.
- • **Effortless Battery Lifeline:** Keep your 12V batteries charged and ready, from cars to boats, with zero hassle.

## Overview

The SUNAPEX 12V 30W Solar Trickle Charger Maintainer is a high-efficiency monocrystalline solar panel designed to keep 12V batteries topped off and healthy. Featuring an IP67 waterproof rating and a built-in smart charge controller, it prevents overcharging and battery drain while providing real-time charging status via LED indicators. Lightweight and portable with flexible mounting options, it’s perfect for maintaining batteries in cars, RVs, boats, and off-grid devices, ensuring your gear is always ready when you are.

## Description

desertcart.com: SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine : Patio, Lawn & Garden

Review: Works great to maintain my battery - It works well I've had this panel for a little over a year now, the 20 watt version. I keep it hooked up to a truck that doesn't get driven as often as it should. It's got some small parasitic loads, like a dash cam and remote start system. The truck will kill the battery if it isn't started once every couple of weeks or so. This panel stuck to the south facing windshield and plugged into the cigarette lighter works great. I could probably hook it directly to the battery but this is easier to use that way. Just unplug it and take it in the cab with me. The suction cups hold on well if you get them wet first. It does have to be on the outside of the window to do any good. Windshields block UV No complaints at all from me. Still works well and my remote start says my battery is sitting at 12.8 volts as I type this. It certainly won't charge a dead battery, not very fast anyway. But it will keep it full.
Review: Great Solar Charger - My experience with solar chargers started about a year ago. I had a 5 watt charger that a friend had given me for my generator battery. I never used it for that. Fast forward one year later - I have since retired and my truck sits in my driveway a lot more than it used to. My battery kept going dead so I tried the 5 watt charger and waited a week to see if it either worked or if my battery was dead again. To my surprise it worked! My truck started right up but the problem was that the old battery was 4 years old at that point and I knew that this was going to keep happening unless I either went back to work or I was going to keep the solar charger on my truck battery. The sun and the heat warped my 5 watt charger so I needed a new one. I saw this one and it was on sale at the moment I purchased it here on desertcart. You should know that any solar charger you buy will be subjected to extreme heat and light so please keep that in mind when you buy one of these things. I recently went to remove mine during a hot afternoon and nearly burnt myself because the unit was so hot after being on my dashboard in the midday sun in front of my dashboard heat shield (see pic). 20 watts seems to be the limit for a solar charger before it needs a separate controller to regulate the flow of power to what whatever it is you're charging. Also for those who care at 20 watts the charger is putting out about one amp of DC electricity which would be the equivalent of a trickle charger output from a battery tender. I like this unit because the solar panel is flexible instead of being rigid or made from hard plastic like my 5 watt charger. The holes in each corner give you the flexibility on how you want to position for maximum sunlight exposure. In my case I laid the panel down on my dashboard and put my big sunshade behind it to protect the dashboard and interior of the truck from the heat and sun fade. The sunshade keeps the panel propped up for best sun exposure. I didn't write the review until I tested it out the same way I tested the 5 watt panel, by waiting a week to see if my new battery (Northstar AGM- NOT RECOMMENDED due to it going dead within 10 days of inactivity and VERY poor warranty support-see my review) would be able to start my truck (Nissan Murano). The Murano has a 3.5 liter engine, not a big engine by any standard yet I have to keep a solar charger on it in order to prevent the battery from draining on me. The charger has been on my truck for about 3 weeks now and whenever I decide to go for a drive my truck starts right up with no issues. I disconnect the charger before I start the truck and when I come home I reconnect it. A bit of a pain in the neck but it guarantees that my truck will always start no matter how long it sits in my driveway I can see this charger might have other uses too. It could be used in a camping situation to charge battery packs or an emergency situation as well. The only minor quibble I have is that the panel does come with a small controller attached to the back to let you know that the charger is charging. There are 3 lights on this little controller. One to let you know that it's receiving sunlight so that it can function. Another LED to let you know that it's charging whatever battery you have it attached to. Then there is a third LED, a green one. Once an item is fully charged the green light is supposed to come on. I have yet to see this green light come on but the charger does work as it's intended. Update 5-29-21- The green light on the controller does appear to function! I noticed the other day after having my truck sitting with the charger attached the green light on the back of the solar panel was on! Apparently my battery must have been low and it took time for the charger to top off the battery. Highly recommended -------------------------------------------------------------------------------------------------------------------------- I rely heavily on reviews when I make purchases so I put some time into reviewing everything I buy on desertcart for personal or business use so I can help other people considering that item. If you found my review helpful, please consider hitting the "helpful" button below when it asks if the review is helpful. Thank you!

## Features

- Battery Savior: Our solar panel is designed to charge and maintain 12V rechargeable batteries. Use it to charge and maintain infrequently used vehicles; boats; outdoor electronics; lawnmowers, and more. Ensure your devices start anytime and protect batteries from long-term discharge. It’s also ideal for off-grid devices like electric fences; gate openers; water pumps; weather systems; cameras; etc. Compatible with most battery likes sealed lead-acid; lithium; LiFePO4; GEL; AGM; flooded; etc
- High-efficiency Solar Panel: Our solar panel features monocrystalline cells. Compared to other polycrystalline and amorphous solar panels of the same size, our monocrystalline solar panel charges faster
- No Overcharging, No Battery Drain: The solar panel includes a built-in controller that prevents overcharging. When the battery is full, the controller stops charging automatically and resumes when the voltage drops. Our solar panel system won’t drain your battery
- Visual Charging Status: The controller has 3 indicator lights: blue (sunlight exposure); red (charging); and green (battery full). Easily monitor the charging process
- IP67 Waterproof: Our fully sealed solar panel system is IP67 waterproof, suitable for all weather conditions
- Easy Installation and Portable: Lightweight and flexible, our solar panel can be effortlessly carried anywhere. Equipped with suction cups and carabiners, it’s easy to install on car windows or hang wherever needed
- Worry-Free Warranty and Support: SUNAPEX offers a one-year warranty and lifetime technical support for our solar panels. Our 24/7 customer service ensures prompt responses. If you’re unsatisfied or need technical assistance, feel free to reach out to us

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 1.66 Amps |
| ASIN | B0B5ZFT9QP |
| Best Sellers Rank | #7,633 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #11 in Solar Battery Chargers & Charging Kits |
| Brand | SUNAPEX |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,402) |
| Efficiency | High Efficiency |
| Included Components | 1 X 30W Solar panel +1 X Cigarette lighter+1 X Alligator clip+1 X O-ring wire +1 X Manual |
| Item Weight | 2 pounds |
| Item model number | c9781364-b048-4a48-9338-f398dd0d4671 |
| Manufacturer | SUNAPEX |
| Material | Monocrystalline Silicon,ETFE |
| Maximum Power | 30 Watts |
| Maximum Voltage | 12 Volts |
| Output Voltage | 12 Volts |
| Product Dimensions | 13.7"L x 1.5"W x 14.96"H |
| Special Feature | Portable,Short Circuit Protection |
| Upper Temperature Rating | 140 Degrees Fahrenheit |

## Product Details

- **Brand:** SUNAPEX
- **Efficiency:** High Efficiency
- **Item Weight:** 2 Pounds
- **Material:** Monocrystalline Silicon,ETFE
- **Product Dimensions:** 13.7"L x 1.5"W x 14.96"H

## Images

![SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine - Image 1](https://m.media-amazon.com/images/I/515BTSLQHaL.jpg)
![SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine - Image 2](https://m.media-amazon.com/images/I/519JUosdzbL.jpg)
![SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine - Image 3](https://m.media-amazon.com/images/I/51SAMeyDGyL.jpg)
![SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine - Image 4](https://m.media-amazon.com/images/I/51ZvCGalm8L.jpg)
![SUNAPEX 12V 30 Watt Solar Trickle Charger Maintainer - Waterproof Solar Powered Battery Charger - Solar Panel Kit Built-in Smart Charge Controller for Car Rv Trailer Truck Boat Automotive Marine - Image 5](https://m.media-amazon.com/images/I/51l0-jj4QoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great to maintain my battery
*by C***. on April 30, 2025*

It works well I've had this panel for a little over a year now, the 20 watt version. I keep it hooked up to a truck that doesn't get driven as often as it should. It's got some small parasitic loads, like a dash cam and remote start system. The truck will kill the battery if it isn't started once every couple of weeks or so. This panel stuck to the south facing windshield and plugged into the cigarette lighter works great. I could probably hook it directly to the battery but this is easier to use that way. Just unplug it and take it in the cab with me. The suction cups hold on well if you get them wet first. It does have to be on the outside of the window to do any good. Windshields block UV No complaints at all from me. Still works well and my remote start says my battery is sitting at 12.8 volts as I type this. It certainly won't charge a dead battery, not very fast anyway. But it will keep it full.

### ⭐⭐⭐⭐⭐ Great Solar Charger
*by I***D on March 30, 2021*

My experience with solar chargers started about a year ago. I had a 5 watt charger that a friend had given me for my generator battery. I never used it for that. Fast forward one year later - I have since retired and my truck sits in my driveway a lot more than it used to. My battery kept going dead so I tried the 5 watt charger and waited a week to see if it either worked or if my battery was dead again. To my surprise it worked! My truck started right up but the problem was that the old battery was 4 years old at that point and I knew that this was going to keep happening unless I either went back to work or I was going to keep the solar charger on my truck battery. The sun and the heat warped my 5 watt charger so I needed a new one. I saw this one and it was on sale at the moment I purchased it here on Amazon. You should know that any solar charger you buy will be subjected to extreme heat and light so please keep that in mind when you buy one of these things. I recently went to remove mine during a hot afternoon and nearly burnt myself because the unit was so hot after being on my dashboard in the midday sun in front of my dashboard heat shield (see pic). 20 watts seems to be the limit for a solar charger before it needs a separate controller to regulate the flow of power to what whatever it is you're charging. Also for those who care at 20 watts the charger is putting out about one amp of DC electricity which would be the equivalent of a trickle charger output from a battery tender. I like this unit because the solar panel is flexible instead of being rigid or made from hard plastic like my 5 watt charger. The holes in each corner give you the flexibility on how you want to position for maximum sunlight exposure. In my case I laid the panel down on my dashboard and put my big sunshade behind it to protect the dashboard and interior of the truck from the heat and sun fade. The sunshade keeps the panel propped up for best sun exposure. I didn't write the review until I tested it out the same way I tested the 5 watt panel, by waiting a week to see if my new battery (Northstar AGM- NOT RECOMMENDED due to it going dead within 10 days of inactivity and VERY poor warranty support-see my review) would be able to start my truck (Nissan Murano). The Murano has a 3.5 liter engine, not a big engine by any standard yet I have to keep a solar charger on it in order to prevent the battery from draining on me. The charger has been on my truck for about 3 weeks now and whenever I decide to go for a drive my truck starts right up with no issues. I disconnect the charger before I start the truck and when I come home I reconnect it. A bit of a pain in the neck but it guarantees that my truck will always start no matter how long it sits in my driveway I can see this charger might have other uses too. It could be used in a camping situation to charge battery packs or an emergency situation as well. The only minor quibble I have is that the panel does come with a small controller attached to the back to let you know that the charger is charging. There are 3 lights on this little controller. One to let you know that it's receiving sunlight so that it can function. Another LED to let you know that it's charging whatever battery you have it attached to. Then there is a third LED, a green one. Once an item is fully charged the green light is supposed to come on. I have yet to see this green light come on but the charger does work as it's intended. Update 5-29-21- The green light on the controller does appear to function! I noticed the other day after having my truck sitting with the charger attached the green light on the back of the solar panel was on! Apparently my battery must have been low and it took time for the charger to top off the battery. Highly recommended -------------------------------------------------------------------------------------------------------------------------- I rely heavily on reviews when I make purchases so I put some time into reviewing everything I buy on Amazon for personal or business use so I can help other people considering that item. If you found my review helpful, please consider hitting the "helpful" button below when it asks if the review is helpful. Thank you!

### ⭐⭐⭐⭐ Easy to use product of decent quality. Customer support not so great
*by J***E on August 9, 2025*

Easy setup, clear indicators of battery status and charging. Nice extras for connecting devices to battery for a variety of uses. Suction cups works well to attach panel to car window (from the inside) for charging the battery while parked or driving. Contacting support for missing instruction guide was the only annoyance. It wasn't worth responding back to their list of questions just to get a copy or PDF of the instruction guide. Fortunately it was mostly obvious on how to setup and use the system, but would've been nice to reference the actual manufacturers guide.

## Frequently Bought Together

- SUNAPEX Solar Battery Charger Maintainer, 30W 12V Portable Waterproof Solar Panel Trickle Charger with Built-in Charge Controller, Cig Plug, Alligator Clips, O-Rings for Car, Truck,Tractor, Boat, etc
- OYMSAE 25Feet SAE to SAE Extension Cable Quick Disconnect Connector 16AWG,for Automotive,Solar Panel Panel SAE Plug(25FT(16AWG)), Charging Adapter

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-27*