Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredRed_Liz | Staff posted Feb 11, 2025 03:46 PM
  1. Deal Image
Item 1 of 1
expiredRed_Liz | Staff posted Feb 11, 2025 03:46 PM

ECO-WORTHY 7.5W Waterproof Solar Panel 12V Battery Trickle Charger Maintainer

$16

$31

48% off
Amazon
79 Comments 39,114 Views
Visit Amazon
Good Deal
Save
Share
Deal Details
ECO-WORTHY US via Amazon has ECO-WORTHY 7.5W Waterproof Solar Panel 12V Battery Trickle Charger (Cars, Trucks, Boats, Lawn Mowers, RV, Tractors) on sale for $31.18 - $15.59 (50% off w/ promo code 50HWX8TU at checkout) = $15.59. Shipping is free with Prime or on $35+ orders.

Thanks to Slickdeals Staff Member Red_Liz for finding this deal.

Product Info:
  • A+ grade monocrystalline silicon wafers have a conversion efficiency of up to 23% to maintain a consistent output of 7.5W.
  • The solar panel is bendable to fit windscreens and has a strong hold on the 4 PVC suction cups.
  • IP64 waterproofing and UV protection.

Editor's Notes

Written by SlickDealio
  • About the deal:
    • This matches the previous +35 Frontpage Deal in December 2024.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About the product:
    • This has a 4.3 out of 5 star overall rating based on over 100 reviews.
  • About this Store:

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
ECO-WORTHY US via Amazon has ECO-WORTHY 7.5W Waterproof Solar Panel 12V Battery Trickle Charger (Cars, Trucks, Boats, Lawn Mowers, RV, Tractors) on sale for $31.18 - $15.59 (50% off w/ promo code 50HWX8TU at checkout) = $15.59. Shipping is free with Prime or on $35+ orders.

Thanks to Slickdeals Staff Member Red_Liz for finding this deal.

Product Info:
  • A+ grade monocrystalline silicon wafers have a conversion efficiency of up to 23% to maintain a consistent output of 7.5W.
  • The solar panel is bendable to fit windscreens and has a strong hold on the 4 PVC suction cups.
  • IP64 waterproofing and UV protection.

Editor's Notes

Written by SlickDealio
  • About the deal:
    • This matches the previous +35 Frontpage Deal in December 2024.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About the product:
    • This has a 4.3 out of 5 star overall rating based on over 100 reviews.
  • About this Store:

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+41
Good Deal
Visit Amazon

Price Intelligence

Model: ECO-WORTHY Upgraded 7.5W Solar Car Battery Charger Maintainer 12V Waterproof Solar Panel Portable Solar Trickle Charger for Car Truck Boat Lawn Mower RV Trailer Tractor ATV Utility Vehicle Battery

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Leave a Comment

Unregistered (You)

Top Comments

FairWinter2721
293 Posts
26 Reputation
i own this. one advantage is that it came with both alligator clips AND a very handy OBD2 connector. the OBD2 allows charge thru OBD2 port as an option.
MultiMatrix
573 Posts
83 Reputation
I don't see anywhere on the product page that shows it includes odb2 charging adapter...

Edit: I decided to purchase anyway and just received the unit, and it did come with an ODBII adapter. you were absolutely right FairWinter. Thank you!
big mike
7274 Posts
1697 Reputation
This is not correct, solar panels not exposed to light most definitely USE electricity, also most of these have status lights or other circuits that use electricity. If the panel isn't working right to create electricity (or isn't exposed to enough light during the day) it's definitely possible for it to drain a battery. Better/industrial systems have controllers that shut the panels off at night so they aren't using power out of the storage system.

78 Comments

Sign up for a Slickdeals account to remove this ad.

Feb 19, 2025 08:10 PM
259 Posts
Joined Dec 2020
JeffersonStreetFeb 19, 2025 08:10 PM
259 Posts
Quote from Zeric :
This is rated at 7.5W max, that's in ideal conditions so it's more likely to put out 5-6W. Running it directly through an inverter to 110V isn't going to work as solar doesn't provide stable voltage or current. Now, if one wanted to use it to charge a cell phone or tablet for example, one could convert it directly from "12V" (actual voltage will vary) to 5V using a buck converter such as this: https://www.amazon.com/dp/B0B8C5MT37
It would charge really slow as it just doesn't generate much power, but it should work.
Thanks so much for sharing the link. I had no idea this was possible and this buck converter really makes this a versatile solar charger. Appreciate you sharing!
Feb 20, 2025 11:51 PM
5,473 Posts
Joined Jul 2017
Luigis3rdcousinFeb 20, 2025 11:51 PM
5,473 Posts
So I got this and I'm returning it. Either I got a bad one but this wouldn't produce any wattage in the sun and actually it was drawing current. It did include the OBD connector thing which sounds good in theory but I tested it to actually draining my battery. So it's getting returned and refunded
Feb 23, 2025 04:28 PM
4,024 Posts
Joined May 2006
ArcticatFeb 23, 2025 04:28 PM
4,024 Posts
Quote from kssteve :
Utter nonsense. You don't understand electricity. Amperage has nothing to do with overcoming skin's resistance. I have a 50 amp charger I use on farm machinery with huge batteries. I've touched the terminals and clamps with bare hands many times and felt nothing.
I can't even reply to this utter nonsense! No one is taking skin resistance into the equation at all, hold on a little tighter with sweaty hands, and you will prove me right. You touch a 50 amp charger while it is outputting at a high rate and you will be dead. 1 Amp can kill you, it's you who does not understand electricity. I worked in the electric industry for longer than you are alive...

Leave a Comment

Unregistered (You)

Related Searches

AutosAuto Parts & SuppliesTech & ElectronicsTech AccessoriesBatteriesCouponFree Shipping with Prime

Popular Deals

View All
Found by
$40$10060% offGoogle Nest Audio Speaker - Charcoal color - $60 off Best Buy App $39.99
3
Found by
$7.52$1342% off$7.52: Barilla Elbows Pasta, 16 oz. Box (Pack of 8) - Non-GMO
0
Found by
Woot: Warehouse Clean Out Sale (Open Box Items) + Free Shipping w/ Prime
3
Found by
$0.65$1.0035% off4.3-Oz Knorr Pasta Sides (Chicken) $0.65 w/ S&S + Free Shipping w/ Prime or on $35+
1
Found by
$14$4669% offBaseus Power Strip Surge Protector 1200J - PD40W USB C Charger Extension Cord $14.25 + Free Shipping w/Prime
0

Trending Deals

View All
Found by
$250$1,00075% offSamsung The Frame 50" (LS03D) - $249.99 - Best Buy Open Box YMMV
28
Found by
$65$13050% off52" TALOYA Ceiling Fan w/ Dimmable Light & Remote $65 + Free S/H
2
Found by
$4.39$2078% offAMMZO Digital Instant Read Food/Meat Thermometer (Black) $4.39 + Free Shipping w/ Prime or on $35+
2
Found by
$5,650$6,0005% offECO-WORTHY Home Backup Power 2*48V 280Ah Battery + 2*12kW Hybrid Inverter $5650 + Free Shipping
14
Found by
$2.99$8.9966% offThe Witcher ebook series (Books 1-8) $2.99 each (Apple)
3