Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.

Browse every Black Friday offer we could findBrowse every Black Friday offer we could find

View The Sift
forum thread
DealzRGood4U 408 Views
Today 1:39 PM

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

$244

$399

38% off
AliExpress
Get Deal at AliExpress

Why are you downvoting this deal?

Good Deal?
6Comments
Save
Share
Deal Details
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
Community Notes
About the Poster
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

Community Voting

Deal Score
+3
Good Deal
Bad Deal

Why are you downvoting this deal?

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

6 Comments

Sign up for a Slickdeals account to remove this ad.

Today 2:07 PM
10 Comments
Joined Oct 2026
Onelesskidney26Today 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
Today 2:10 PM
10 Comments
Joined Oct 2026
Onelesskidney26Today 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
Pro
Today 2:12 PM
230 Comments
Joined Dec 2020
flasholic1234
Pro
Today 2:12 PM
230 Comments
Quote from Onelesskidney26 View quoted comment :
Fat fingers.. last sentence- buy now if you can
what's the reason for the price hike?
Today 2:20 PM
10 Comments
Joined Oct 2026
Onelesskidney26Today 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
Today 2:25 PM
2K Comments
Joined Oct 2006
revere04Today 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.
Today 2:36 PM
233 Comments
Joined Oct 2026
BraveTest551Today 2:36 PM
233 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.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!