---
product_id: 40185027
title: "Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV"
brand: "sunway solar"
price: "COP 217293"
currency: COP
in_stock: true
reviews_count: 8
category: "Sunway Solar"
url: https://www.desertcart.co/products/40185027-sunway-solar-car-battery-trickle-charger-and-maintainer-12v-solar
store_origin: CO
region: Colombia
---

# 1.5W max solar power Plug & play cigarette lighter connection Amorphous panel works in cloudy weather Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV

**Brand:** sunway solar
**Price:** COP 217293
**Availability:** ✅ In Stock

## Summary

> ☀️ Keep your ride ready—solar-powered battery care that never quits!

## Quick Answers

- **What is this?** Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV by sunway solar
- **How much does it cost?** COP 217293 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/40185027-sunway-solar-car-battery-trickle-charger-and-maintainer-12v-solar)

## Best For

- sunway solar enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Ultra-clear PV glass and rugged ABS plastic housing deliver durability and resistance to warping under intense sun exposure.
- • **Smart Protection:** Built-in blocking diode prevents reverse charging, safeguarding your battery from drain when the sun goes down.
- • **Universal Compatibility:** Perfect for any 12V rechargeable battery—cars, trucks, boats, motorcycles, RVs, and more.
- • **Effortless Solar Maintenance:** Simply mount on your windshield or dash and plug into your 12V cigarette lighter—no tools, no hassle.
- • **Reliable Power Rain or Shine:** Amorphous solar technology ensures steady trickle charging even on overcast days, keeping your battery healthy year-round.

## Overview

The Sunway 1.5W Amorphous Solar Battery Trickle Charger is a compact, durable solar maintainer designed to keep 12V batteries topped off effortlessly. Featuring an amorphous solar panel that charges even in low light, a plug-and-play cigarette lighter adapter, and built-in reverse current protection, it’s ideal for vehicles and equipment that sit idle for long periods. Its rugged construction with ultra-clear PV glass and ABS housing ensures longevity, while the LED indicator confirms charging status. Perfect for professionals who demand reliable, eco-friendly battery care without the fuss.

## Description

desertcart.com: Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV : Patio, Lawn & Garden

Review: Works great - Short answer: Contrary to some of the negative reviews speaking about "warping", "discharging your battery" and other such things, it works exactly as advertised. I drive the test vehicle only a handful of times per year, so it sits outside for months on end sometimes which is bad for batteries, they like to be topped off all the time due to their internal chemistry. Long answer: I'm an Electrical Engineer so I did a few basic tests, with the following findings and some recommendations: NOTES: DO NOT leave the panel plugged in when starting or driving, spikes in the line might cause damage to the circuitry. It could fail and then put a load on the battery in that case. NO test for weather/water resistance was conducted, I have yet to test it in the winter time, which is a more challenging time for it and batteries too. I'm optimistic it will work ok given what I've seen so far. I tested this resting on the dashboard (no suction cups, I wouldn't trust that ever), with clear view of the sky facing generally slightly east of North during mid-late August, near the Washington DC area using a cigarette lighter connection with the supplied adapter. (it's FUSED, and works with a NEGATIVE ground socket/system, i.e. most everything not vintage) Some people have said the cig cable polarity is backwards, but in order to work as a CHARGER, the + connects to + as it should! Btw, the BLUE LED does NOT adversely effect the performance, and need not be "disabled" as some have claimed. The numbers I'm reporting are all with the unit as delivered, no modifications were made. 1) NO Battery discharge when dark (i.e., it doesn't drain your battery in the dark, or ever due to internal diode) Tested on the bench as well with a power supply and ammeter. 2) NO WARPING of case in direct sun 8hrs/day mid latitude US East Coast in August. (measured CABIN peak temps up to 117 deg, low of 69F, dash probably hotter in direct sun). ABS plastic has a glass transition temp (i.e. warping) around 105C (221F) so IF it is actually ABS, no melting/warping seems possible at temps found in cars NOT on fire lol! 3) For a HEALTHY battery, it MAINTAINS charge easily overcoming a parasitic drain in my vehicle of 9mA or (0.009Amps), and still puts a NET 44mA (0.044Amps) charging current INTO the battery in direct noon sun, and a NET positive charge current (in clouds/overcast), albeit only 7.3mA. In only 1 sunny day (and overnight) my new battery @ 12.34v went to 12.55v from this device. This is because it is a HEALTHY battery. The max open circuit voltage of the charger I measured around 22v but it can only deliver 1.5W max so you aren't going to hurt the battery with such low currents, and at best charging currents are only present up to about a 1/3 the time during a 24 hr period I'd estimate. NOTE: A dead/failing battery cannot be rescued by this or any charging device, and my prior failed battery at 12.24v (after 2 day commercial charge from "dead") with this same device under same summer conditions in 2 days went down to 12.01v and failed to turn over the engine! After the attempt it was down to 11.5v, clearly no good. I think this is suited as a MAINTAINER, don't bother thinking this will "charge" a vehicle battery. I drive that vehicle very very rarely, so this will keep the battery ready to go without having to periodically start it every few weeks to charge it up. Temperature and time will reduce the efficiency of the panel, but there is a 4x margin in my case (with a 9mA parasitic drain, which is quite small). If your car has a lot of electronic features, security systems etc, your parasitic drain could be more than this can even put out. In that case you would need a bigger higher power panel (this is only 1.5W). To measure the parasitic drain: with all vehicle doors shut, pull the main battery fuse and put an ammeter there, since it will measure absolutely everything, using any other fuse will only get a subset of what your battery drain is. Start with the maximum scale (typically 10A) to be safe, switch to smaller scales once you know the range. Let the initial connection settle since there will be a surge for a bit as all the electronics initialize and settle into a steady state. My vehicle settled in about 5 seconds (an after market CD player self test used 250mA during that 5 seconds) In principle, some sensors and other fancy stuff could spike some current periodically, but this couldn't be known without a logging ammeter. In all likelihood it won't boost the average drain in any significant way from your measured steady state.
Review: Excellent (but be careful where you place it) - EDIT: I ended up returning these, because the batteries slowly lost their charge over a couple of weeks. Maybe I should have bought the ones with a higher wattage! However, I'm leaving them at 5 stars, because they do put out the advertised amperage. PS, I installed quick-disconnects instead; they do a fantastic job of preventing battery discharge. *************** I have a couple of cars that haven't been driven much because of COVID lockdowns. We could go out & drive them around each week, to keep the batteries charged, but my wife & I have a second home so, when we are there, we couldn't do that. As a result, whenever we came back home, both batteries were discharged. So, I bought two of these 1.5W solar trickle chargers. I installed them both on the inside of the cars' windshields. I didn't want them outside, because (i) they could be stolen and (ii) they might get rain damage. Neither of the windshields is tinted, so I didn't think it would make much difference. They were in almost full sun much of the day (and where I live, we get a LOT of sunny days). I decided to use a voltmeter to measure the output, and (for both units) I got about 18V, and 8 milliamps. Watts = V x A, so that indicated an output of (18 x 0.008) = 0.144W - which is only about 10% of advertised. I wasn't too happy, so I emailed tech support. They replied very promptly and politely asked me to send photos of how I was testing the voltage & current. So the next day (also sunny) I went outside, and repeated the test (and got the same results). BUT, then I decided, to be fair, to repeat the tests, but this time with the unit on top of the windshield (that is, outside the car) rather than inside. And doing that made a HUGE difference. Voltage = 20V; current = 71 mA. So, wattage was now 1.42 = MUCH closer to spec. Time will tell (i) if this will keep the batteries charged and (ii) if the units can withstand rain, but as of now, they are operating as described - so 5 stars for that (and for the quick reply from tech support).

## Features

- [Simple and Very Easy to Use]---The solar battery charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. { If you need a Quick Connection16feet Extension Cable SAE Connectors with Ring Terminal Adapters for this Sunway solar charger, please search the ASIN:B073158Q24.
- [Solar Panel Power up to 1.8W]--This trickle charger will NOT overcharge your battery! Keep your 12 Volt batteries topped up with this solar battery maintainer ,which helps to manage battery drain in all seasons. The amorphous solar panel works well even in cloudy days.
- [Stronger and Durable]-This solar powered battery charger is Covered with ultra clear PV glass which is more efficient, and also with Durable ABS plastic housing which makes this solar panels charger more stronger.
- [For Any Rechargeable 12Volt Battery]--This solar battery trickle charger is the eco-friendly way to maintain the charge of any car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat and personal water crafts or RV 12 volt battery!
- [Prevent Reverse Charging]-- With build in blocking diode to prevent reverse charging. And with Blinking LED charge indicator when charging. And the solar charger maintainer Includes cigarette lighter adapter and battery alligator terminal clamps.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 0.13 Amps |
| ASIN | B06WP95W51 |
| Amperage Capacity | 0.13 Amps |
| Best Sellers Rank | #12,752 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #9 in Solar Battery Chargers & Charging Kits |
| Brand | Sunway Solar |
| Brand Name | Sunway Solar |
| Connector Type | cigarette lighter plug |
| Customer Reviews | 4.2 out of 5 stars 3,176 Reviews |
| Included Components | cigarette lighter adapter, battery alligator terminal clamps |
| Item Dimensions L x W x H | 13.9"L x 5.04"W x 0.55"H |
| Item Weight | 640 Grams |
| Manufacturer | Sunway Solar |
| Manufacturer Part Number | SWS-C2W001 |
| Material | Glass |
| Material Type | Glass |
| Maximum Power | 1.5 Watts |
| Maximum Voltage | 12 Volts |
| Model Number | dca72e5d-f776-4f55-acb6-418d5da553fe |
| Product Dimensions | 13.9"L x 5.04"W x 0.55"H |
| Special Features | Amorphous solar panel, reverse charging protection, LED indicator |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Sunway Solar
- **Included Components:** cigarette lighter adapter, battery alligator terminal clamps
- **Item Weight:** 640 Grams
- **Material:** Glass
- **Product Dimensions:** 13.9"L x 5.04"W x 0.55"H

## Images

![Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV - Image 1](https://m.media-amazon.com/images/I/61xvKDajdyL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can i use this 12 volt sports solar charger outdoors?**
A: Yes, this 12 V power sports solar charger is weatherproof. But it should not be submerged in water.

**Q: Is this unit water proof?**
A: The waterproof performance of this sunway solar trickle charger is IP44.The charger can withstand splashing or light rain, but is not fully waterproof and should not be submerged or left outside during rainfall.The solar charger panel can be mounted to the windshield.

**Q: How is this solar charger? Does it really waterproof?**
A: This trickle battery charger solar charger is weatherproof. But it should not be submerged in water.

**Q: can it be in the rain?**
A: Ours is for the boat just wipe it after rain or weekly for dust. If that's not an option im sure it will be fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by N***E on August 27, 2022*

Short answer: Contrary to some of the negative reviews speaking about "warping", "discharging your battery" and other such things, it works exactly as advertised. I drive the test vehicle only a handful of times per year, so it sits outside for months on end sometimes which is bad for batteries, they like to be topped off all the time due to their internal chemistry. Long answer: I'm an Electrical Engineer so I did a few basic tests, with the following findings and some recommendations: NOTES: DO NOT leave the panel plugged in when starting or driving, spikes in the line might cause damage to the circuitry. It could fail and then put a load on the battery in that case. NO test for weather/water resistance was conducted, I have yet to test it in the winter time, which is a more challenging time for it and batteries too. I'm optimistic it will work ok given what I've seen so far. I tested this resting on the dashboard (no suction cups, I wouldn't trust that ever), with clear view of the sky facing generally slightly east of North during mid-late August, near the Washington DC area using a cigarette lighter connection with the supplied adapter. (it's FUSED, and works with a NEGATIVE ground socket/system, i.e. most everything not vintage) Some people have said the cig cable polarity is backwards, but in order to work as a CHARGER, the + connects to + as it should! Btw, the BLUE LED does NOT adversely effect the performance, and need not be "disabled" as some have claimed. The numbers I'm reporting are all with the unit as delivered, no modifications were made. 1) NO Battery discharge when dark (i.e., it doesn't drain your battery in the dark, or ever due to internal diode) Tested on the bench as well with a power supply and ammeter. 2) NO WARPING of case in direct sun 8hrs/day mid latitude US East Coast in August. (measured CABIN peak temps up to 117 deg, low of 69F, dash probably hotter in direct sun). ABS plastic has a glass transition temp (i.e. warping) around 105C (221F) so IF it is actually ABS, no melting/warping seems possible at temps found in cars NOT on fire lol! 3) For a HEALTHY battery, it MAINTAINS charge easily overcoming a parasitic drain in my vehicle of 9mA or (0.009Amps), and still puts a NET 44mA (0.044Amps) charging current INTO the battery in direct noon sun, and a NET positive charge current (in clouds/overcast), albeit only 7.3mA. In only 1 sunny day (and overnight) my new battery @ 12.34v went to 12.55v from this device. This is because it is a HEALTHY battery. The max open circuit voltage of the charger I measured around 22v but it can only deliver 1.5W max so you aren't going to hurt the battery with such low currents, and at best charging currents are only present up to about a 1/3 the time during a 24 hr period I'd estimate. NOTE: A dead/failing battery cannot be rescued by this or any charging device, and my prior failed battery at 12.24v (after 2 day commercial charge from "dead") with this same device under same summer conditions in 2 days went down to 12.01v and failed to turn over the engine! After the attempt it was down to 11.5v, clearly no good. I think this is suited as a MAINTAINER, don't bother thinking this will "charge" a vehicle battery. I drive that vehicle very very rarely, so this will keep the battery ready to go without having to periodically start it every few weeks to charge it up. Temperature and time will reduce the efficiency of the panel, but there is a 4x margin in my case (with a 9mA parasitic drain, which is quite small). If your car has a lot of electronic features, security systems etc, your parasitic drain could be more than this can even put out. In that case you would need a bigger higher power panel (this is only 1.5W). To measure the parasitic drain: with all vehicle doors shut, pull the main battery fuse and put an ammeter there, since it will measure absolutely everything, using any other fuse will only get a subset of what your battery drain is. Start with the maximum scale (typically 10A) to be safe, switch to smaller scales once you know the range. Let the initial connection settle since there will be a surge for a bit as all the electronics initialize and settle into a steady state. My vehicle settled in about 5 seconds (an after market CD player self test used 250mA during that 5 seconds) In principle, some sensors and other fancy stuff could spike some current periodically, but this couldn't be known without a logging ammeter. In all likelihood it won't boost the average drain in any significant way from your measured steady state.

### ⭐⭐⭐⭐⭐ Excellent (but be careful where you place it)
*by S***R on January 8, 2021*

EDIT: I ended up returning these, because the batteries slowly lost their charge over a couple of weeks. Maybe I should have bought the ones with a higher wattage! However, I'm leaving them at 5 stars, because they do put out the advertised amperage. PS, I installed quick-disconnects instead; they do a fantastic job of preventing battery discharge. *************** I have a couple of cars that haven't been driven much because of COVID lockdowns. We could go out & drive them around each week, to keep the batteries charged, but my wife & I have a second home so, when we are there, we couldn't do that. As a result, whenever we came back home, both batteries were discharged. So, I bought two of these 1.5W solar trickle chargers. I installed them both on the inside of the cars' windshields. I didn't want them outside, because (i) they could be stolen and (ii) they might get rain damage. Neither of the windshields is tinted, so I didn't think it would make much difference. They were in almost full sun much of the day (and where I live, we get a LOT of sunny days). I decided to use a voltmeter to measure the output, and (for both units) I got about 18V, and 8 milliamps. Watts = V x A, so that indicated an output of (18 x 0.008) = 0.144W - which is only about 10% of advertised. I wasn't too happy, so I emailed tech support. They replied very promptly and politely asked me to send photos of how I was testing the voltage & current. So the next day (also sunny) I went outside, and repeated the test (and got the same results). BUT, then I decided, to be fair, to repeat the tests, but this time with the unit on top of the windshield (that is, outside the car) rather than inside. And doing that made a HUGE difference. Voltage = 20V; current = 71 mA. So, wattage was now 1.42 = MUCH closer to spec. Time will tell (i) if this will keep the batteries charged and (ii) if the units can withstand rain, but as of now, they are operating as described - so 5 stars for that (and for the quick reply from tech support).

### ⭐⭐⭐⭐ Nice charger
*by J***E on June 10, 2026*

works great

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-07-08*