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frontpagegabe23111 posted Feb 11, 2026 05:19 PM
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Item 1 of 2
frontpagegabe23111 posted Feb 11, 2026 05:19 PM

ECO-WORTHY 400W Monocrystalline Solar Panel Kit (4x 100W Panels)

+ Free Shipping

$209

$1,022

79% off
AliExpress
39 Comments 17,487 Views
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Deal Details
Update: This popular deal is now available at a lower price.

ECOWORTHY-US Store via Aliexpress has ECO-WORTHY 400W Monocrystalline Solar Panel Kit on sale for $244.09 - $35 off when you apply promo code RDC35C at checkout = $228.81 -> now $209.09. Shipping is free.
  • Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].
Thanks to Community Member gabe23111 for sharing this deal.

Includes:
  • 4x ECO-WORTHY 100W 12V Monocrystalline Solar Panel
  • 1x ECO-WORTHY 40A MPPT Solar Charge Controller
  • 1x 5M 12AWG Extension Cable with MC4
  • 4x Z Mounting Bracket
  • 1x Y MC4 Connector
  • 1x 5M Tray Cable
No Longer Applicable:
  • RDT20N

Editor's Notes

Written by StrawMan86 | Staff
  • This deal is $35.02 -> now $54.74 lower than the previous Frontpage Deal from August 2025.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by gabe23111
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is now available at a lower price.

ECOWORTHY-US Store via Aliexpress has ECO-WORTHY 400W Monocrystalline Solar Panel Kit on sale for $244.09 - $35 off when you apply promo code RDC35C at checkout = $228.81 -> now $209.09. Shipping is free.
  • Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].
Thanks to Community Member gabe23111 for sharing this deal.

Includes:
  • 4x ECO-WORTHY 100W 12V Monocrystalline Solar Panel
  • 1x ECO-WORTHY 40A MPPT Solar Charge Controller
  • 1x 5M 12AWG Extension Cable with MC4
  • 4x Z Mounting Bracket
  • 1x Y MC4 Connector
  • 1x 5M Tray Cable
No Longer Applicable:
  • RDT20N

Editor's Notes

Written by StrawMan86 | Staff
  • This deal is $35.02 -> now $54.74 lower than the previous Frontpage Deal from August 2025.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by gabe23111

Community Voting

Deal Score
+48
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Top Comments

SDSummerDay
5134 Posts
737 Reputation
You know where 90 percent of solar panel and controller are made?
ThriftyThread5737
288 Posts
14 Reputation
Can you not put the batteries in parallel? Connecting batteries in parallel involves joining positive-to-positive and negative-to-negative terminals to increase total amp-hour (Ah) capacity and runtime, while keeping voltage consistent. This setup allows for longer-lasting power, such as doubling a 12V 100Ah system to 12V 200Ah by linking two batteries. It is critical to use identical batteries (same voltage, capacity, and age) to avoid premature failure and uneven charging.
DannyD2637
498 Posts
76 Reputation
First, you're never going to get full nameplate capacity output out of any solar panel. Second, Chinese manufacturing is generations ahead of the US and anywhere else. Where do you think more than 80% of solar panel production happens?

What? You think the US is investing in solar panel manufacturing? We're actively doing the opposite.

39 Comments

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Feb 12, 2026 03:12 PM
83 Posts
Joined Oct 2011
shieekFeb 12, 2026 03:12 PM
83 Posts
hi, any comments from RV'rs about this unit? Value etc? Thank you
1
Feb 12, 2026 05:34 PM
5 Posts
Joined Dec 2019
jwertyFeb 12, 2026 05:34 PM
5 Posts

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

Wow I have this kit paid $400 off Amazon last year. MPTT controller is great and why I bought mine. A+ deal. Pair it with a single 280AH 12V LiPo4 battery deal and you have a great system. I went with 2x100AH and its annoying to have two batteries to think about and swap around in the bluetooth app - would much rather have one big one hanging off these 400W panels!
Last edited by jwerty February 12, 2026 at 10:36 AM.
2
1
Feb 13, 2026 03:34 AM
11 Posts
Joined Feb 2020
BoastfulWalrus809Feb 13, 2026 03:34 AM
11 Posts
Quote from jwerty :
Wow I have this kit paid $400 off Amazon last year. MPTT controller is great and why I bought mine. A+ deal. Pair it with a single 280AH 12V LiPo4 battery deal and you have a great system. I went with 2x100AH and its annoying to have two batteries to think about and swap around in the bluetooth app - would much rather have one big one hanging off these 400W panels!
What's your use case?
1
Feb 13, 2026 03:55 AM
288 Posts
Joined Sep 2020
ThriftyThread5737Feb 13, 2026 03:55 AM
288 Posts

Our community has rated this post as helpful. If you agree, why not thank ThriftyThread5737

Quote from jwerty :
Wow I have this kit paid $400 off Amazon last year. MPTT controller is great and why I bought mine. A+ deal. Pair it with a single 280AH 12V LiPo4 battery deal and you have a great system. I went with 2x100AH and its annoying to have two batteries to think about and swap around in the bluetooth app - would much rather have one big one hanging off these 400W panels!
Can you not put the batteries in parallel? Connecting batteries in parallel involves joining positive-to-positive and negative-to-negative terminals to increase total amp-hour (Ah) capacity and runtime, while keeping voltage consistent. This setup allows for longer-lasting power, such as doubling a 12V 100Ah system to 12V 200Ah by linking two batteries. It is critical to use identical batteries (same voltage, capacity, and age) to avoid premature failure and uneven charging.
4
2
Feb 13, 2026 04:25 AM
389 Posts
Joined Nov 2018

This comment has been rated as unhelpful by Slickdeals users.

Feb 13, 2026 04:26 AM
83 Posts
Joined Oct 2011
shieekFeb 13, 2026 04:26 AM
83 Posts
Quote from HairyButtGoblin :
Ummm, it's cheap. It's Chinese. Don't get the controller wet. Don't expect 400w, more like 240w on a very sunny day. Have a safe journey.
Thanks for the warning
1
Feb 13, 2026 04:32 AM
5,134 Posts
Joined Dec 2009
SDSummerDayFeb 13, 2026 04:32 AM
5,134 Posts

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

Quote from HairyButtGoblin :
Ummm, it's cheap. It's Chinese. Don't get the controller wet. Don't expect 400w, more like 240w on a very sunny day. Have a safe journey.
You know where 90 percent of solar panel and controller are made?
4
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Feb 13, 2026 04:44 AM
498 Posts
Joined Sep 2013
DannyD2637Feb 13, 2026 04:44 AM
498 Posts

Our community has rated this post as helpful. If you agree, why not thank DannyD2637

Quote from HairyButtGoblin :
Ummm, it's cheap. It's Chinese. Don't get the controller wet. Don't expect 400w, more like 240w on a very sunny day. Have a safe journey.
First, you're never going to get full nameplate capacity output out of any solar panel. Second, Chinese manufacturing is generations ahead of the US and anywhere else. Where do you think more than 80% of solar panel production happens?

What? You think the US is investing in solar panel manufacturing? We're actively doing the opposite.
3
1
1
Feb 13, 2026 04:56 AM
389 Posts
Joined Nov 2018
HairyButtGoblinFeb 13, 2026 04:56 AM
389 Posts
Quote from SDSummerDay :
You know where 90 percent of solar panel and controller are made?
The DRC ?
1
4
Feb 13, 2026 05:25 AM
7 Posts
Joined Jul 2020
YINHE980Feb 13, 2026 05:25 AM
7 Posts

Our community has rated this post as helpful. If you agree, why not thank YINHE980

Quote from HairyButtGoblin :
Ummm, it's cheap. It's Chinese. Don't get the controller wet. Don't expect 400w, more like 240w on a very sunny day. Have a safe journey.
Chinese solar panels = high-tech & premium
2
1
1
Feb 13, 2026 06:03 AM
108 Posts
Joined Jun 2019
EricJ19Feb 13, 2026 06:03 AM
108 Posts
Do people really spend this much money on a AliExpress purchase?
2
5
Feb 13, 2026 09:40 AM
59 Posts
Joined Oct 2011
ggmangFeb 13, 2026 09:40 AM
59 Posts
Quote from DannyD2637 :
First, you're never going to get full nameplate capacity output out of any solar panel. Second, Chinese manufacturing is generations ahead of the US and anywhere else. Where do you think more than 80% of solar panel production happens?

What? You think the US is investing in solar panel manufacturing? We're actively doing the opposite.
I'm providing my two cents to help shoppers as I have the 200W kit. Yes, Chinese solar manufacturing is well ahead of the US's. However, the 100W panels are labeled with false specs. If you compare the 100W Eco-Worthy with the Renogy, the Renogy is bigger and thus actually outputs more of what is advertised.

There are videos showcasing this brand's false specs and lower output. If you prefer to support a company that actually sells what it advertises, you may want to go with a different brand. FWIW, I'm content with my purchase, even factoring in the lower output.

Hope this helps, stay green.
Last edited by ggmang February 13, 2026 at 03:03 AM.
1
Feb 13, 2026 12:55 PM
270 Posts
Joined Nov 2022

This comment has been rated as unhelpful by Slickdeals users.

Feb 13, 2026 01:36 PM
59 Posts
Joined Oct 2011
ggmangFeb 13, 2026 01:36 PM
59 Posts
Solar panels typically recoup their manufacturing carbon footprint within a few years. Claiming that they are never green is, frankly, quite ridiculous. Even if you're not concerned about the environmental benefits, the cost savings alone can be a strong incentive, especially if you live in a sunny, high-cost-of-living state. Solar panels aren't for everyone, but they're here to stay as they're built into our everyday infrastructure (roofs of buildings, solar parking lots, etc).
https://lifestyle.sustainability-...ar-panels/
Last edited by ggmang February 13, 2026 at 06:38 AM.
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Feb 13, 2026 01:39 PM
59 Posts
Joined Oct 2011
ggmangFeb 13, 2026 01:39 PM
59 Posts
Quote from SkillfulMask719 :
while I applaud your commitment to the goal, there is nothing green about solar energy. It is alternative energy at best. The carbon offset for these panels will never be achieved in their functional lifetime. They will produce power YES, they will never be green by the time you factor in the pollution created in their manufacturing. Until you find a solar panel plant being run by solar power and wind mills, its all a trade off which I am fine with. ultimately its about producing power WHERE you need it and WHEN you need it. living in hurricane alley (FLORIDA) I would accept lower output vs NO output after a storm kills the grid.
Solar panels typically recoup their manufacturing carbon footprint within a few years. Claiming that they are never green is, frankly, quite ridiculous. Even if you're not concerned about the environmental benefits, the cost savings alone can be a strong incentive, especially if you live in a sunny, high-cost-of-living state. Solar panels aren't for everyone, but they're here to stay as they're built into our everyday infrastructure (roofs of buildings, solar parking lots, etc).
https://lifestyle.sustainability-...ar-panels/
1

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