ECOWORTHY-US Store via AliExpress has
ECO-WORTHY 24V 100AH LiFePO4 Lithium Battery on sale for $248.45 - $30 with promo code
USDEAL30 at checkout =
$218.45.
Shipping is free.
Thanks to Community Member
Probedude 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].
Details:
- Mini Size & Lightweight: Only 3/4 the size of other LiFePO4 batteries and 2/3 of equivalent lead-acid (2x100Ah); weighs 44.75 lbs with flame-retardant shell for easy RV placement
- 3000+ Cycles & Bluetooth: Equivalent to 6 lead-acid batteries; supports parallel connection; Bluetooth app for real-time monitoring of voltage, capacity, and temperature
- Lead-Acid Replacement: High energy density with no capacity loss when deeply discharged; longer RV range and enhanced safety
- Battery Management System: Built-in BMS protects against overcharge, over-discharge, over-current, short-circuit, and high temperature; syncs data via Bluetooth
- Multiple Applications: Ideal for RVs, campers, caravans, boats, trolling motors, golf carts, solar systems, and emergency power supply
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Just put a MRBF fuse on each string and then parallel off that.
I have a varied mix of manufacturers and capacities (12V batteries, 3.2V CALB cells, 24V batteries), but each 24V string is matched. Been running for almost 2 years with no issues. I do have my charge controller (Victron) set to 27.6V with a 2 hour dwell. Keeps the top voltage from ever hitting the upper limit on the BMS.
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Within the last year, I have been buying parts for a second generator, this time a 48v with 6000w inverter to charge my car. My ROI this time will be about 1.5 years.
Point is: Have a reason for doing this. Is it a backup for power outage, saving on electricity cost, etc.
It isn't going to be streamlined because everyone is going to have a different reason for their system. If you go over to the diysolarforums, some people will have multiple systems operating specific things (a full system for a well pump, mini split units, car charger, etc.) and each system will be sized and configured just for that.
I'm more than happy to help if people have questions about sizing their systems and options. Also, making sure to pick the right size cable, fuses, breakers, etc. I've been seeing a lot of sketchy unsafe stuff getting posted around here, and I'll usually post something about that if I see it.
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If one needs a no-fuss solution, buying an all-in-one from the likes of Jackery etc makes sense though isn't cheap.
My point is, easy to say "buy the correct cables and fuses" but generally hard for the layperson to understand what that means unless one is well versed in current rating, cable gauge etc. That's all.
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Others with more knowledge have pointed out string matching etc, and that's a great strategy to keep costs down by gradually buying parts. I'd say not for the faint of the heart though.
I bought tons of Eco Worthy stuff and mostly from Ebay and I have never had problems with them.
They always make it right for me whenever I have a problem.
I've only started buying stuff from AliExpress so I wouldn't know but I figure if it's directly from them, it should be the same.
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Each 24V string is either:
1 - 24V battery (not technically a string other than the cells inside, which you don't have control over).
2 - 12V batteries in series. These need to be matched by manufacturer, capacity and age. If they're not matched, you'll have one disconnect sooner than the other because it went flat sooner, or charged up sooner.
3 - 8 qty individual LiFePO4 cells, all in series. You want to match manufacturer, capacity and age, similar to the above reason.
Each of these strings (1, 2, 3 above) can be put in parallel with each other even though all together are not matched, and this is okay. You need the matching within a string.
Hope this helps.
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