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frontpageRed_Liz | Staff posted Mar 24, 2026 05:49 PM
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frontpageRed_Liz | Staff posted Mar 24, 2026 05:49 PM

ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable

$24

$40

40% off
Amazon
51 Comments 24,521 Views
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Deal Details
Update: This popular deal is still available.

CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG 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.
Thanks to Staff Member Red_Liz for sharing this deal.

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)

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rated 4.2 out of 5 stars based on over 50+ Amazon customer reviews.
  • About this store:

Original Post

Written by Red_Liz | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG 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.
Thanks to Staff Member Red_Liz for sharing this deal.

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)

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rated 4.2 out of 5 stars based on over 50+ Amazon customer reviews.
  • About this store:

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+77
Good Deal
Get Deal at Amazon

Price Intelligence

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

Deal History 

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Current Prices

Sort: Lowest to Highest | Last Updated 3/30/2026, 02:17 AM
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Amazon$29

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Top Comments

azndudeC2
7 Posts
10 Reputation
The OBD connector on this is a little finicky. It only has one of the two possible ground pins and as a result didn't work on my 2000s Camry and Corolla
Dud321
247 Posts
366 Reputation
When placing a solar panel behind a vehicle windshield, you can expect an average efficiency loss of 30% to 50% compared to placing it in direct outside sunlight. Under poor conditions, such as with tinted glass or suboptimal angles, this loss can soar to 70% or more.
OJ47
171 Posts
46 Reputation
I got this about a month ago at $30 for a truck that isn't used too often. I use it with the solar panel inside the windshield on the dashboard, connected to the OBD2. It's been working well so far.

51 Comments

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Mar 24, 2026 06:09 PM
78 Posts
Joined Nov 2011
ultimatinternetMar 24, 2026 06:09 PM
78 Posts
Incredible price. I have been trying to piece an overkill 100W version together for way more but needs to be on more cars. This price lets me do it on each easily.
2
Mar 24, 2026 07:16 PM
7 Posts
Joined May 2012
azndudeC2Mar 24, 2026 07:16 PM
7 Posts

Our community has rated this post as helpful. If you agree, why not thank azndudeC2

The OBD connector on this is a little finicky. It only has one of the two possible ground pins and as a result didn't work on my 2000s Camry and Corolla
9
Pro
Mar 24, 2026 07:31 PM
297 Posts
Joined Nov 2017
jdr123
Pro
Mar 24, 2026 07:31 PM
297 Posts

Our community has rated this post as helpful. If you agree, why not thank jdr123

only 56 reviews and 11% are 1 star with a majority of these reviews saying the product does not work....ugh
2
Mar 24, 2026 09:05 PM
430 Posts
Joined Dec 2007
PumpkinatorMar 24, 2026 09:05 PM
430 Posts

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

I bought the 20w Flexsolar charger/maintainer a couple of weeks back, has very similar attachments and ways to charge. It was $30 at the time, now $33. Works great so far and nicely built.
3
Mar 24, 2026 09:30 PM
5 Posts
Joined Apr 2019
WillingbaconMar 24, 2026 09:30 PM
5 Posts

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

Bought this for my F-150 as the system was complaining that my 12v battery was running low. Plugged this in and I no longer get that notification. I just leave it on the dashboard plugged into my OBD II. Great trickle charger when no power is around.
3
Mar 24, 2026 09:33 PM
273 Posts
Joined Jan 2015
chrispitudeMar 24, 2026 09:33 PM
273 Posts
Aww what the heck, in for 1. Thanks OP!
2
Mar 24, 2026 09:36 PM
1,154 Posts
Joined Jun 2014
USMCRMar 24, 2026 09:36 PM
1,154 Posts
$21.27 for business account
1

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Mar 24, 2026 09:58 PM
129 Posts
Joined May 2016
nodashiplMar 24, 2026 09:58 PM
129 Posts
im surprised a 10watt solar panel is enough.
1
1
Mar 24, 2026 10:26 PM
2,886 Posts
Joined Feb 2006
iluvmyshMar 24, 2026 10:26 PM
2,886 Posts
Quote from nodashipl :
im surprised a 10watt solar panel is enough.
It's just a trickle charge.
Mar 24, 2026 11:01 PM
203 Posts
Joined Jan 2016
Fallout4Mar 24, 2026 11:01 PM
203 Posts
Quote from iluvmysh :

It's just a trickle charge.
Just a tinkle...not a good flow.
1
4
Mar 25, 2026 01:23 AM
6,346 Posts
Joined Feb 2004
armedmetallicaMar 25, 2026 01:23 AM
6,346 Posts
watching this - $5 off doesn't seem like a "deal" - but if it gets to $10 off, I just might bite.
Mar 25, 2026 01:44 AM
247 Posts
Joined Aug 2011
Dud321Mar 25, 2026 01:44 AM
247 Posts

Our community has rated this post as helpful. If you agree, why not thank Dud321

When placing a solar panel behind a vehicle windshield, you can expect an average efficiency loss of 30% to 50% compared to placing it in direct outside sunlight. Under poor conditions, such as with tinted glass or suboptimal angles, this loss can soar to 70% or more.
5
Mar 25, 2026 02:09 AM
171 Posts
Joined Dec 2010
OJ47Mar 25, 2026 02:09 AM
171 Posts

Our community has rated this post as helpful. If you agree, why not thank OJ47

I got this about a month ago at $30 for a truck that isn't used too often. I use it with the solar panel inside the windshield on the dashboard, connected to the OBD2. It's been working well so far.
5
Mar 25, 2026 02:59 AM
1,151 Posts
Joined Aug 2009
DfindingMar 25, 2026 02:59 AM
1,151 Posts
I don't know much about how it works
Would it overcharge and/or damage the battery (if left unattended)?

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Mar 25, 2026 05:38 AM
374 Posts
Joined Oct 2017
JasonR9389Mar 25, 2026 05:38 AM
374 Posts

Our community has rated this post as helpful. If you agree, why not thank JasonR9389

I've got three of these on equipment and they keep the battery from draining, but it's NOT a charger, if you've got a dead battery this isn't what you need, which should be obvious.
1

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