Item 1 of 3
Item 1 of 3
expiredbnrusso posted Nov 18, 2025 9:00 PM
EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery
$109
$309
64% off
+ Free Shippingat eBay
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EcoFlow Official Store via eBay has EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery for $109. Shipping is free.
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
- Best lithium battery for RVs, cabins, and off grid workshops
- Group 27 equivalent
- 1280Wh capacity, 1280W continuous output
- Best-in-class EV-grade LFP cells with 6000+ cycles
- UL, CE, FCC, UN38.3, RoHS certified
- 50% less weight, 50% more energy than lead acid
- IP65 waterproof rating
- X-Guard BMS with low-temp cut-off
- Highest-level UL5VA flame-retardant casing
Editor's Notes
Written by SubZero5 | Staff- About this deal:
- Our research indicates that this deal is $130 less (54% savings) than the next best available price from a reputable merchant with prices starting from $239 at the time of this posting.
- About this product:
- 5-year warranty
- About this store:
- 30 days returns. Seller pays for return shipping.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
EcoFlow Official Store via eBay has EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery for $109. Shipping is free.
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
- Best lithium battery for RVs, cabins, and off grid workshops
- Group 27 equivalent
- 1280Wh capacity, 1280W continuous output
- Best-in-class EV-grade LFP cells with 6000+ cycles
- UL, CE, FCC, UN38.3, RoHS certified
- 50% less weight, 50% more energy than lead acid
- IP65 waterproof rating
- X-Guard BMS with low-temp cut-off
- Highest-level UL5VA flame-retardant casing
Editor's Notes
Written by SubZero5 | Staff- About this deal:
- Our research indicates that this deal is $130 less (54% savings) than the next best available price from a reputable merchant with prices starting from $239 at the time of this posting.
- About this product:
- 5-year warranty
- About this store:
- 30 days returns. Seller pays for return shipping.
Community Voting
Deal
Score
+39
Good Deal
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Top Comments
2 batteries×6V×200Ah=2,400Wh (Lead Acid)
2 batteriesx12Vx100Ah=2,400Wh (Lithium)
And that's just the start. In terms of usable capacity these two setups are wildly different. First some important things to consider:
FLA: You should not discharge lead-acid batteries below 50% Depth of Discharge (DoD) to ensure a decent lifespan.
LFP: Lithium batteries can be safely discharged to 100% (though commonly rated at 80%–95% for longevity, many BMS allow full usage).
If you do the math and then consider just the two points above the LFP setup has roughly 4x the usable power. Unfortunately @firelikeiya enjoys a good fictional rant here!
But let's keep going. Another two important points to consider: 1) Voltage Sag and 2) Weight. I'm sure you've guessed by now but: the FLA batteries are garbage in comparison here, as well. First is Peukert's law - those FLAs can't draw a high amount of current. Your "200Ah" worth of power will easily drop to 100AH or less under an actual load. As for weight, well... Again there's no comparison here. If the two LFP batteries in this SlickDeal aren't at least 40% lighter then you bought some garbage batteries!
And as Mr. Jobs always said: one more thing... Extreme heat and cold. They both have tradeoffs. The LFP: you're not going to be able to charge below freezing. But the FLA will also lose significant (up to 50%) capacity AND charge slower. As for heat - lead-acid batteries degrade rapidly in heat. A general rule of thumb is that for every 15°F above 77°F (25°C), the battery's lifespan is cut in half and so I'm actually really confused about bro's claim of pressure cooked batteries (made up) vs batteries that literally die in the sun. And this is how we know that our golf-cart-battery-buddy clearly knows ZERO about batteries. Is there a downside to LFP in the heat? For sure, it will be that your BMS may cut the battery at 130-140F+. So, yeah that could be an issue in extreme temps, but don't listen to anything this guy is saying.
And for the love... Why do people keep asking if they can use these batteries in their car? JUST. DON'T.
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68 Comments
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You have flooded lead acid batteries. The voltage droops quickly and the 200AH rating is C/20 or over 20 hours. Pull faster than that and you're not getting 200AH out of it.
This battery will stay above 13V much longer than your FLA batteries. Much cleaner and smaller too. You'll get more useable life out of these than your FLA. BTW, have your priced replacement flooded GC batteries lately?
FWIW, I have 8V Trojan golf cart batteries in a 48V EZgo cart at the horse ranch - what a mess. I have to clean the tops off every other month because of all the outgassing during charging. Can't wait to switch the cart over the LFP.
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So yes, but size the panel correctly, and you'd want to get a charge controller. Might not look all that great on top of your car.
- 2 batteries×6V×200Ah=2,400Wh (Lead Acid)
- 2 batteriesx12Vx100Ah=2,400Wh (Lithium)
And that's just the start. In terms of usable capacity these two setups are wildly different. First some important things to consider:- FLA: You should not discharge lead-acid batteries below 50% Depth of Discharge (DoD) to ensure a decent lifespan.
- LFP: Lithium batteries can be safely discharged to 100% (though commonly rated at 80%–95% for longevity, many BMS allow full usage).
If you do the math and then consider just the two points above the LFP setup has roughly 4x the usable power. Unfortunately @firelikeiya enjoys a good fictional rant here!But let's keep going. Another two important points to consider: 1) Voltage Sag and 2) Weight. I'm sure you've guessed by now but: the FLA batteries are garbage in comparison here, as well. First is Peukert's law - those FLAs can't draw a high amount of current. Your "200Ah" worth of power will easily drop to 100AH or less under an actual load. As for weight, well... Again there's no comparison here. If the two LFP batteries in this SlickDeal aren't at least 40% lighter then you bought some garbage batteries!
And as Mr. Jobs always said: one more thing... Extreme heat and cold. They both have tradeoffs. The LFP: you're not going to be able to charge below freezing. But the FLA will also lose significant (up to 50%) capacity AND charge slower. As for heat - lead-acid batteries degrade rapidly in heat. A general rule of thumb is that for every 15°F above 77°F (25°C), the battery's lifespan is cut in half and so I'm actually really confused about bro's claim of pressure cooked batteries (made up) vs batteries that literally die in the sun. And this is how we know that our golf-cart-battery-buddy clearly knows ZERO about batteries. Is there a downside to LFP in the heat? For sure, it will be that your BMS may cut the battery at 130-140F+. So, yeah that could be an issue in extreme temps, but don't listen to anything this guy is saying.
And for the love... Why do people keep asking if they can use these batteries in their car? JUST. DON'T.
So this or wait till black friday and see what Eco Worthy does for coupons on e-bay (and yes, I know about Ecoworthy on AliExpress, something is up and I am unable to purchase anything with 3 different credit cards on that site).
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Car batteries use alot of power quickly and then very little power to run some accessories n stuff and the alternator recharges them while the car is running.
Storage batteries are use power consistently over time and are not meant to take high bursts of power drain.
Or something like that
But the answer is no u dont want to use them to start ur car
However I have read that two 6v LiFp04 batteries are a better option than a 12v LiFp04 battery because the 6v will give u more hrs.
Not my personal experience just something I read from multiple sources
LiFp04 batteries are far superior than lead acid in terms of storage power regardless of ah rating.
However I have read that two 6v LiFp04 batteries are a better option than a 12v LiFp04 battery because the 6v will give u more hrs.
Not my personal experience just something I read from multiple sources
Wow. "two 6v LiFp04 batteries are a better option than a 12v LiFp04 battery because the 6v will give u more hrs"
A) A 12V 100Ah LFP battery contains 4 cells (3.2V each) and a BMS.
B) Two 6V 100Ah LFP batteries contain 2 cells (3.2V each) and a BMS... times two.
C) Math: 4 cells vs. (2 cells+2 cells)
The only difference here, literally, is the fact that with 2x6v you have two BMS. So, redundancy. But that also works against you - because if one of the two 6v batteries fail you no longer have your 12v output and have failed anyway.
It's a tale older than time that some old dude will tell you 2x batteries are better than one. Sure, old architecture batteries in tandem could handle voltage sag a bit better in that scenario. But these are not issues that plague the LFP. It's a myth - just stop repeating it and we'd all be better off.
MORE HOURS? 2x6V batteries is not a magical unicorn. It cannot (within the constraint of our planet) give you more of anything than it already has. It does not give you more HOURS. It does not give you SPAM. It does not give you HAM. It does not give.
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