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Red_Liz | Staff 8.2K Views
Jun 16, 2025 4:24 PM

Eco-Worthy 10W Solar Car Battery Charger Maintainer $20.40 + Free Shipping

$20

$30

33% off
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Deal Details
eco-worthy-us via eBay [ebay.com] has Eco-Worthy 10W Solar Car Battery Charger Maintainer on sale for $23.99 - 15% w/ coupon code THINGSYOULOVE at checkout = $20.39. Shipping is free.

Features:
  • Suitable for keeping vehicles/boat battery charged during the weeks unused. No need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back can observe the charging state. And it's waterproof, you can safely use it outdoors(After experimental test).
  • The 10w monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging. Built-in blocking diode prevents reverse charging without extra maintenance at night. Works even on cloudy days. As frosted surface, the panel doesn't need film protection anymore.
  • Equipped with SAE cable, just plug the cigarette lighter into the port or connect the battery terminal posts with the alligator clip, and the connection can be completed within 3 minutes! Suitable for car, truck, boat, lawn mower, motorcycles, trailer, dump trailer, tractor, RV, van, camper, ATV, utility vehicle Battery etc.
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About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay [ebay.com] has Eco-Worthy 10W Solar Car Battery Charger Maintainer on sale for $23.99 - 15% w/ coupon code THINGSYOULOVE at checkout = $20.39. Shipping is free.

Features:
  • Suitable for keeping vehicles/boat battery charged during the weeks unused. No need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back can observe the charging state. And it's waterproof, you can safely use it outdoors(After experimental test).
  • The 10w monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging. Built-in blocking diode prevents reverse charging without extra maintenance at night. Works even on cloudy days. As frosted surface, the panel doesn't need film protection anymore.
  • Equipped with SAE cable, just plug the cigarette lighter into the port or connect the battery terminal posts with the alligator clip, and the connection can be completed within 3 minutes! Suitable for car, truck, boat, lawn mower, motorcycles, trailer, dump trailer, tractor, RV, van, camper, ATV, utility vehicle Battery etc.

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11 Comments

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Pro
Jun 17, 2025 2:10 PM
1.5K Comments
Joined Oct 2011
westec2
Pro
Jun 17, 2025 2:10 PM
1.5K Comments
This is a great idea. I wonder if it really avoids overcharging like they claim.
Jun 17, 2025 2:45 PM
163 Comments
Joined Dec 2008
mjawtJun 17, 2025 2:45 PM
163 Comments
Isn't 10W slow, even for a trickle-charger?
Jun 17, 2025 7:12 PM
3.4K Comments
Joined Dec 2009
RyanMPLSJun 17, 2025 7:12 PM
3.4K Comments
Quote from westec2 View quoted comment :
This is a great idea. I wonder if it really avoids overcharging like they claim.
Quote from mjawt View quoted comment :
Isn't 10W slow, even for a trickle-charger?
I have this and have not had an issue with overcharge, there's a circuit of some sort on the back side. I have it on the dash of a seldom used car to cover vampiric drain from the ECU, remote start, alarm and dash cam. I used to use a Genius 1 tender but ext cord running outside bothered me.
Jun 18, 2025 2:44 AM
132 Comments
Joined Dec 2011
sav0704Jun 18, 2025 2:44 AM
132 Comments
Interesting. So, it can charge 12v via the cigarette lighter port?
Jun 18, 2025 10:50 PM
2.1K Comments
Joined Mar 2014

This comment has been rated as unhelpful by Slickdeals users.

Jun 19, 2025 12:11 AM
49 Comments
Joined Apr 2019
Peteytyler1Jun 19, 2025 12:11 AM
49 Comments
Bought one of these a few months ago for my tractor that sits for weeks at a time. The battery is old and I would usually need to jump it but this has been keeping it at 12.8v and it fires right up. So far so good.
Jun 19, 2025 2:36 AM
112 Comments
Joined Dec 2014
TillmanAJun 19, 2025 2:36 AM
112 Comments
Quote from sav0704 View quoted comment :
Interesting. So, it can charge 12v via the cigarette lighter port?
I've seen cars isolate ports on power down.

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Jun 19, 2025 9:01 PM
115 Comments
Joined Jan 2022
FairSofa5430Jun 19, 2025 9:01 PM
115 Comments
Quote from TillmanA View quoted comment :
I've seen cars isolate ports on power down.
That is why alligator clips for direct battery connection are included.
Jun 19, 2025 9:11 PM
34 Comments
Joined Aug 2014
XizelJun 19, 2025 9:11 PM
34 Comments
I initially tried 10W but had to upgrade to 20W considering the energy loss of putting it behind a tinted window and also not having the ideal orientation.
Jun 20, 2025 5:49 AM
8 Comments
Joined Sep 2018
garcia510Jun 20, 2025 5:49 AM
8 Comments
I wonder how this compares performance wise to the solar Battery Tender
Jun 29, 2025 3:24 PM
43 Comments
Joined Jun 2018
GregM3744Jun 29, 2025 3:24 PM
43 Comments

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