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Red_Liz | Staff 43.2K Views
Mar 24, 2026 5:49 PM

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

$24

$40

40% off
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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 qwikwit | 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 store:

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
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 qwikwit | 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 store:

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+100
Good Deal
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Top Comments

azndudeC2
7Comments
10Reputation
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
Go to Comment
Dud321
263Comments
366Reputation
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.
Go to Comment
OJ47
183Comments
46Reputation
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.
Go to Comment

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70 Comments

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Mar 24, 2026 6:09 PM
118 Comments
Joined Nov 2011
ultimatinternetMar 24, 2026 6:09 PM
118 Comments
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.
4
Mar 24, 2026 7:16 PM
7 Comments
Joined May 2012
azndudeC2Mar 24, 2026 7:16 PM
7 Comments

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

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
10
Pro
Mar 24, 2026 7:31 PM
346 Comments
Joined Nov 2017
jdr123
Pro
Mar 24, 2026 7:31 PM
346 Comments

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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 9:05 PM
448 Comments
Joined Dec 2007
PumpkinatorMar 24, 2026 9:05 PM
448 Comments

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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 9:30 PM
6 Comments
Joined Apr 2019
WillingbaconMar 24, 2026 9:30 PM
6 Comments

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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 9:33 PM
284 Comments
Joined Jan 2015
chrispitudeMar 24, 2026 9:33 PM
284 Comments
Aww what the heck, in for 1. Thanks OP!
3
Mar 24, 2026 9:36 PM
1.2K Comments
Joined Jun 2014
USMCRMar 24, 2026 9:36 PM
1.2K Comments
$21.27 for business account
1

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Mar 24, 2026 9:58 PM
129 Comments
Joined May 2016
nodashiplMar 24, 2026 9:58 PM
129 Comments
im surprised a 10watt solar panel is enough.
1
1
Mar 24, 2026 10:26 PM
3K Comments
Joined Feb 2006
iluvmyshMar 24, 2026 10:26 PM
3K Comments
Quote from nodashipl View quoted comment :
im surprised a 10watt solar panel is enough.
It's just a trickle charge.
Mar 24, 2026 11:01 PM
225 Comments
Joined Jan 2016

This comment has been rated as unhelpful by Slickdeals users.

Mar 25, 2026 1:23 AM
6.5K Comments
Joined Feb 2004
armedmetallicaMar 25, 2026 1:23 AM
6.5K Comments
watching this - $5 off doesn't seem like a "deal" - but if it gets to $10 off, I just might bite.
1
Mar 25, 2026 1:44 AM
263 Comments
Joined Aug 2011
Dud321Mar 25, 2026 1:44 AM
263 Comments

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

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.
6
Mar 25, 2026 2:09 AM
183 Comments
Joined Dec 2010
OJ47Mar 25, 2026 2:09 AM
183 Comments

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

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 2:59 AM
1.2K Comments
Joined Aug 2009
DfindingMar 25, 2026 2:59 AM
1.2K Comments
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 5:38 AM
384 Comments
Joined Oct 2017
JasonR9389Mar 25, 2026 5:38 AM
384 Comments

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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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