ECOWORTHY-US Store via AliExpress has
ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery for $235.64 - $35 when you apply promo code
ASUSDEAL35 at checkout =
$200.64 (
or less, see note below).
Shipping is free.
- Note: Select PayPal as your payment method to save an additional $15 off, bringing the total to $185.64 (see complete terms).
Thanks to community member
Dr.W for sharing this deal.
- 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].
Product Details:- Bluetooth and remote app monitoring to read the battery voltage, current, battery capacity and other important information
- 200A BMS with multiple protections, including low-temperature protection (charging cut-off 19.4 F)
- Supports up to 4 batteries in parallel, providing 1120Ah at 12V ideal for RVs, or 4 in series ideal for 48V solar power systems
- High-strength metal frame, Grade A cells
- 6000-15000 long life cycles & 10-Year life
- 17.8 x 9.37 x 8.7" (61.7 lbs)
Top Comments
We had to replace one shortly after receiving it that had a finicky Bluetooth module and didn't like to connect. The replacement was super fast and easy.
I plan to pull our remaining AGM batteries out, they're not worth the weight and space when these work so well.
Edit- I bought mine through their ebay site.
Community Reviews
This ECO-WORTHY 12V 280Ah LiFePO4 battery is drawing attention for its very low price, Bluetooth monitoring, and strong value for non-critical solar, RV, and backup setups. The battery has been used successfully in cold weather, in RV and bus conversions, and in long-running solar and UPS-style projects, with some units still working well after years of use. The main cautions are checkout glitches, extra fees or taxes, and occasional Bluetooth or shipping issues. It is a capable budget battery if you are prepared to verify the final total and wiring details.
Common Questions (6)
Bluetooth monitoring is a major plus and works with apps like Overkill on many units, but some batteries have finicky Bluetooth modules or eventually disappear from Bluetooth until the BMS is reset by running them down. That means the feature is useful for monitoring, but it may not be dependable on every unit.
It is used successfully for RVs, solar sheds, UPS-style backup, and house battery banks, with reports of solid long-term performance and no failures on older units. It is not meant for starting cars because the 200A BMS cannot supply engine cranking amps.
The advertised price can jump to $300+ unless the coupon is applied correctly, and some checkouts still add fees and taxes that push the total to about $213 or more. A few buyers also report extra charges around $34.92, so the final total depends on whether the coupon, tax, and fees all apply as expected.
Yes, the deal can stack with a PayPal discount in some cases, and one purchase also used a PayPal Pay in 4 option to trigger the $15 off. The coupon may only apply to one item per order, so multiple batteries often require separate purchases.
You need an inverter with UPS-like pass-through behavior and the correct wiring to the AC input side, not the AC output terminals. For a house backup setup, a 48V inverter/charger can tie into a breaker panel, while a smaller 12V inverter/charger is cheaper but usually means running extension cords.
That fit is uncertain from the comments, and one shopper specifically asked whether this size fits a standard 2-battery RV box. The battery is also described as large enough that some buyers are considering different layouts or a single larger-capacity alternative instead.
AI-generated summary based on comments from the community. Updated ago
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98 Comments
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My delta 2 is connected to one solar panel and powering our garage freezer.
The panel is giving me 480 watts on a good day and by noon, it's already full.
I see a ecoworthy(https://www.eco-worthy.com/produc...-batteries) and a few others
https://www.amazon.com/Haisito-Le...B0GH5CYB9D
or
https://www.amazon.com/Haibro-Aut...B0CNXMPD5
I see a ecoworthy(https://www.eco-worthy.com/produc...-batteries) and a few others
https://www.amazon.com/Haisito-Le...B0GH5CYB9D
or
https://www.amazon.com/Haibro-Aut...B0CNXMPD5
https://www.amazon.com/Connector-...74&sr=8-30
https://www.amazon.com/Renogy-Inv...27R4J?th=
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My delta 2 is connected to one solar panel and powering our garage freezer.
The panel is giving me 480 watts on a good day and by noon, it's already full.
https://www.youtube.com/watch?v=Dmhp8_b
2nd method is go thru battery expandable port with 48V battery like video below:
https://www.youtube.com/watch?v=nnZFCYh
Mine isn't sealed and I can see the guts so guess it's going back as a return. Also has some minor damage to the outside.
This is only 12v and on the video is 51.2v
It not depend on the boat size, it depend on your electric motor generate how much watt. For example, if your motor generate 500 watts, it would run your motor 7 hours for 1 battery.
My delta 2 is connected to one solar panel and powering our garage freezer.
The panel is giving me 480 watts on a good day and by noon, it's already full.
This is only 12v and on the video is 51.2v
Mine isn't sealed and I can see the guts so guess it's going back as a return. Also has some minor damage to the outside.
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Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!