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popularRed_Liz | Staff posted Apr 16, 2026 03:46 PM

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popularRed_Liz | Staff posted Apr 16, 2026 03:46 PM

ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable $24 + Free Shipping

$24

$40

40% off

Amazon

15 Comments 4,750 Views

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ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable on sale for $29.99 - additional $6 when you apply promo code C5G4BCKO at checkout = $23.99. Shipping is free with Prime or on $35+ orders.

Note: You must be logged in to apply promo codes; promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Includes:

10W 12V solar battery charger panel
OBD-II charging cable (for direct vehicle connection)
Alligator clip cable (for direct battery connection)
Adjustable mounting bracket
4 x PVC screw-on suction cups for window mounting
Integrated indicator light (built into panel)

Note: You must be logged in to apply promo codes; promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Includes:

10W 12V solar battery charger panel
OBD-II charging cable (for direct vehicle connection)
Alligator clip cable (for direct battery connection)
Adjustable mounting bracket
4 x PVC screw-on suction cups for window mounting
Integrated indicator light (built into panel)

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Model: ECO-WORTHY 10W Upgraded Solar Car Battery Charger Maintainer 12V Waterproof Quick-Stand Support Solar Trickle Charger for Car Truck Boat Lawn Mower RV Trailer Tractor ATV Utility Vehicle Battery

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Post Date	Sold By	Sale Price	Activity
03/24/26	Amazon	$24 Frontpage	71
07/18/25	Amazon	$30	3

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Sort: Lowest to Highest | Last Updated 5/9/2026, 04:08 PM

Sold By	Sale Price
Amazon	$29

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15 Comments

cheapass79

Apr 16, 2026 05:50 PM

549 Posts

Joined Apr 2008

cheapass79Apr 16, 2026 05:50 PM

549 Posts

Anyone used one? I ordered one to try to use to keep my ATV battery from getting ruined from sitting.

Hoping all of the components are weather resistant and it doesn't need to be in the car window

itank2

Pro

Apr 16, 2026 06:34 PM

726 Posts

Joined Nov 2010

itank2

Pro

Apr 16, 2026 06:34 PM

726 Posts

Quote from cheapass79

Anyone used one? I ordered one to try to use to keep my ATV battery from getting ruined from sitting. Hoping all of the components are weather resistant and it doesn't need to be in the car window

The panel is supposedly waterproof, I saw a picture of one permanently mounted to some sort of trailer. I'm assuming you would just need to wipe it off occasionally if you leave it outside.

Bires

Apr 16, 2026 10:43 PM

69 Posts

Joined Sep 2022

BiresApr 16, 2026 10:43 PM

69 Posts

I would love to know if anyone has used this to power the Eco-Worthy single-axis solar tracker.

matt.amports

Apr 17, 2026 04:43 AM

41 Posts

Joined Jan 2018

matt.amportsApr 17, 2026 04:43 AM

41 Posts

Our community has rated this post as helpful. If you agree, why not thank matt.amports

I'm using this for my diesel van. It has 2 batteries and I drive it once every couple weeks. Before this device, I had to sometimes jump start it. Now it starts strong every time

SociableDirt3456

Apr 17, 2026 01:50 PM

13 Posts

Joined Jul 2024

SociableDirt3456Apr 17, 2026 01:50 PM

13 Posts

Quote from cheapass79

Anyone used one? I ordered one to try to use to keep my ATV battery from getting ruined from sitting.

Hoping all of the components are weather resistant and it doesn't need to be in the car window

I bought the 7.5W last year. It's been on a sitting battery and the clip broke easily for not much movement. It did corrode but the clip seems flimsy.

BluegrassPicker

Apr 19, 2026 12:56 AM

22,371 Posts

Joined Jan 2007

BluegrassPickerApr 19, 2026 12:56 AM

22,371 Posts

Current = Power ÷ Voltage = 10 W ÷ 12 V ≈ 0.83 amps

So a .83 amp trickle charger.

NeatShop7155

Apr 19, 2026 07:42 AM

865 Posts

Joined Jan 2021

NeatShop7155Apr 19, 2026 07:42 AM

865 Posts

Quote from BluegrassPicker

Current = Power ÷ Voltage = 10 W ÷ 12 V ≈ 0.83 ampsSo a .83 amp trickle charger.

For $24 I can buy a real 1amp trickle charger lol

BluegrassPicker

Apr 19, 2026 03:09 PM

22,371 Posts

Joined Jan 2007

BluegrassPickerApr 19, 2026 03:09 PM

22,371 Posts

Quote from NeatShop7155

For $24 I can buy a real 1amp trickle charger lol

True, but you'll have to buy a generator or solar panels with a controller, battery and inverter to plug it into if you're away from power like the panel in this thread is designed for....... Or at least a super long extension cord........ nod

imotiv8

Apr 19, 2026 06:04 PM

201 Posts

Joined Sep 2006

imotiv8Apr 19, 2026 06:04 PM

201 Posts

Tried this on two different healthy cars for 1 week each and it actually drained the battery on both. Maybe I got a dud.

BlueGiraffe766

Apr 20, 2026 05:23 AM

150 Posts

Joined Oct 2020

BlueGiraffe766Apr 20, 2026 05:23 AM

150 Posts

I tried getting this exact product a year ago and found that the solar panel output goes basically unregulated to the battery. That meant it was applying anywhere from 0 to like 18+ volts to the battery depending on sun conditions. Ecoworthy might know more than me about batteries, but I know the most basic no-no in all of electronics is applying too much voltage. Whether it would technically be bad for the car battery wasn't really worth the trouble of figuring out, so I returned it.

beren12

Apr 21, 2026 12:52 AM

33 Posts

Joined Aug 2017

beren12Apr 21, 2026 12:52 AM

33 Posts

Quote from BlueGiraffe766

It's such little power that no, it doesn't matter.

TealActivity1814

Apr 21, 2026 07:01 PM

294 Posts

Joined Jan 2021

TealActivity1814Apr 21, 2026 07:01 PM

294 Posts

Quote from BlueGiraffe766

Uhhh no. Not sure what made you think that but this uses a built in controller to regulate voltage down to battery charge levels.

Xoblaim

Apr 21, 2026 09:34 PM

1,445 Posts

Joined Sep 2011

XoblaimApr 21, 2026 09:34 PM

1,445 Posts

Quote from imotiv8

Tried this on two different healthy cars for 1 week each and it actually drained the battery on both. Maybe I got a dud.

Did you even test if it was generating anything?

pongagt

Apr 22, 2026 10:45 PM

1,566 Posts

Joined May 2007

pongagtApr 22, 2026 10:45 PM

1,566 Posts

I keep a 30 watt panel on my car since I can't plug anything in. It works great as long as it gets sun. You don't want to keep it behind car glass. Sometimes I run a camera in my car that draws the battery down.

Tjparri2

Apr 23, 2026 03:57 AM

20 Posts

Joined Apr 2016

Tjparri2Apr 23, 2026 03:57 AM

20 Posts

Have an classic car, battery in the trunk. Drive it occasionally. Not sure if it's a small drain somewhere or what but if I go a few weeks without driving I have to jump/charge it and reprogram the electronics I have. Not fun if I unhook the battery or too long between drives.
Good/bad option to throw this in the rear window (inside), run it to the battery and keep it continuously hooked up?

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Autos Auto Parts & Supplies Automotive Tools Automotive Battery Chargers Auto Electronic Accessories Free Shipping Tech & Electronics

Rating:	(4.2 out of 5 stars)
Reviews:	67 Amazon Reviews
Manufacturer:	ECO-WORTHY
Model Number:	810127138605
Product SKU:	B0F43X9WYR
UPC:	810127138605
ASIN:	B0F43X9WYR
Brand:	ECO-WORTHY
Item Weight:	1.0097171 Pounds
Item model number:	810127138605
Manufacturer:	ECO-WORTHY

ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable $24 + Free Shipping

$24

$40

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