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DealzRGood4U 3K Views
Nov 6, 2026 1:39 PM

Humsienk 12V 300Ah 3840Wh LiFePO4 Battery w/ 200A BMS $244 + Free S/H

$244

$399

38% off
AliExpress
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Humsienk (Brand+) Store via [aliexpress.us] has Humsienk 12V 300Ah 3840Wh LiFePO4 Battery w/ 200A BMS on sale for $244 when you Apply $50 off Coupon at checkout: USAFF50. + Free Shipping from US warehouse.

Low-temperature protection and a built-in BMS support off-grid energy storage.

Prices may vary by $1-$3 depending on your account location.

Key Features:
  • Voltage Class: 12V
  • Capacity: 300Ah
  • Energy: 3840Wh
  • Chemistry: LiFePO4
  • BMS: 200A
  • Protection: Low-temperature protection
  • Applications: For Off-Grid Cabin, Work Site, Tiny Home, Marine/Fishing/Trolling Motor, Portable Power Station, RV, Camping, Solar Energy Storage, Emergency Backup at Home/Office.
Note: You must be signed into your AliExpress account and have your address added to your address book 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. Price may fluctuate slightly with currency exchange rates.

https://www.aliexpress.us/item/32...03307.html
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Deal Details
Community Notes
About the Poster
Humsienk (Brand+) Store via [aliexpress.us] has Humsienk 12V 300Ah 3840Wh LiFePO4 Battery w/ 200A BMS on sale for $244 when you Apply $50 off Coupon at checkout: USAFF50. + Free Shipping from US warehouse.

Low-temperature protection and a built-in BMS support off-grid energy storage.

Prices may vary by $1-$3 depending on your account location.

Key Features:
  • Voltage Class: 12V
  • Capacity: 300Ah
  • Energy: 3840Wh
  • Chemistry: LiFePO4
  • BMS: 200A
  • Protection: Low-temperature protection
  • Applications: For Off-Grid Cabin, Work Site, Tiny Home, Marine/Fishing/Trolling Motor, Portable Power Station, RV, Camping, Solar Energy Storage, Emergency Backup at Home/Office.
Note: You must be signed into your AliExpress account and have your address added to your address book 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. Price may fluctuate slightly with currency exchange rates.

https://www.aliexpress.us/item/32...03307.html

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14 Comments

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Nov 6, 2026 2:07 PM
10 Comments
Joined Oct 2026
Onelesskidney26Nov 6, 2026 2:07 PM
10 Comments
Good price. Keep in mind if you're looking into lipo batteries, all prices go up Jan 2027. But no we if you can
1
Nov 6, 2026 2:10 PM
10 Comments
Joined Oct 2026
Onelesskidney26Nov 6, 2026 2:10 PM
10 Comments
Quote from Onelesskidney26 View quoted comment :
Good price. Keep in mind if you're looking into lipo batteries, all prices go up Jan 2027. But no we if you can
Fat fingers.. last sentence- buy now if you can
2
Pro
Nov 6, 2026 2:12 PM
231 Comments
Joined Dec 2020
flasholic1234
Pro
Nov 6, 2026 2:12 PM
231 Comments
Quote from Onelesskidney26 View quoted comment :
Fat fingers.. last sentence- buy now if you can
what's the reason for the price hike?
Nov 6, 2026 2:20 PM
10 Comments
Joined Oct 2026
Onelesskidney26Nov 6, 2026 2:20 PM
10 Comments
Quote from flasholic1234 View quoted comment :
what's the reason for the price hike?
Chinese government is getting rid of battery export rebates. I sometimes buy direct from China, sometimes cheaper, than here in the states. Got an email from the supplier
1
Nov 6, 2026 2:25 PM
2K Comments
Joined Oct 2006
revere04Nov 6, 2026 2:25 PM
2K Comments
Can I connect one of those car inverters on this and use it as a plug in when I go on trips
so instead of plugging it into the cigarette lighter I just connect to this battery is what I'm asking.

battery --> Car inverter --> electric portable fridge
Last edited by revere04 November 6, 2026 at 07:29 AM.
Nov 6, 2026 2:36 PM
291 Comments
Joined Oct 2026
BraveTest551Nov 6, 2026 2:36 PM
291 Comments
Quote from revere04 View quoted comment :
Can I connect one of those car inverters on this and use it as a plug in when I go on trips
so instead of plugging it into the cigarette lighter I just connect to this battery is what I'm asking.

battery --> Car inverter --> electric portable fridge
At 12.8V the 200A BMS caps output near 2.5kW, far above a fridge inverter; the DC wiring is what to size properly.
1
Pro
Nov 6, 2026 3:11 PM
231 Comments
Joined Dec 2020
flasholic1234
Pro
Nov 6, 2026 3:11 PM
231 Comments
Quote from BraveTest551 View quoted comment :
At 12.8V the 200A BMS caps output near 2.5kW, far above a fridge inverter; the DC wiring is what to size properly.
If you get a 12v fridge like from e.g. Iceco, this should work.

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Nov 6, 2026 3:26 PM
1.9K Comments
Joined Dec 2007
triggerhappy007Nov 6, 2026 3:26 PM
1.9K Comments
I bought this about 2.5 months ago for $210+tax. This price is the lowest I've seen since then. I used it when my fridge/freezer was dying and wouldn't work when plugged into the household outlet. Tried changing out the outlet and breaker and it didn't solve it. Luckily I had this on hand and a 2000w inverter. I also bought a 20A charger and it was able to charge and run the inverter at the same time. Was able to keep my fridge/freezer running 24/7 for about 5 days until I bought a new Hisense freezer from Costco. The freezer worked for a few days and then died. Luckily Costco reimbursed me for the most food and I bought a Frigidaire instead.
Nov 6, 2026 7:11 PM
24 Comments
Joined Nov 2019
LavenderKnob6276Nov 6, 2026 7:11 PM
24 Comments
Can this be some how wired into an anker solix c2000
Nov 7, 2026 1:27 AM
466 Comments
Joined Nov 2011
TimgusNNov 7, 2026 1:27 AM
466 Comments
Quote from LavenderKnob6276 View quoted comment :
Can this be some how wired into an anker solix c2000
Yes? Through the solar port do it charges like it would with solar. It won't work exactly like an expansion port but does help you extend the laugh
Nov 7, 2026 3:37 AM
344 Comments
Joined Mar 2014
rendroidzNov 7, 2026 3:37 AM
344 Comments
What's a good charger for this?
Nov 7, 2026 5:28 AM
2.2K Comments
Joined Jan 2014
LunchboxBenNov 7, 2026 5:28 AM
2.2K Comments
Hopefully better than their server rack batteries.
2
Nov 7, 2026 5:38 AM
269 Comments
Joined Jan 2022
AquaKite9796Nov 7, 2026 5:38 AM
269 Comments
Quote from revere04 View quoted comment :
Can I connect one of those car inverters on this and use it as a plug in when I go on trips so instead of plugging it into the cigarette lighter I just connect to this battery is what I'm asking. battery --> Car inverter --> electric portable fridge
Yes but you need to gauge very thick wires depending on how much you plan to draw.
1
Original Poster
Pro
Nov 7, 2026 2:29 PM
4K Comments
Joined Dec 2004
DealzRGood4UNov 7, 2026 2:29 PM
Original Poster
Pro
4K Comments
China is phasing out export tax rebates for batteries. They already reduced the rebate from 9% to 6% on April 1, 2026, and plan to cancel rebates entirely on January 1, 2027.

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