A new Black Friday feature is coming...A new Black Friday feature is coming...

Learn More
Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Missed This Deal? Get alerts when similar deals are posted.
expired
iconian | Staff 28.4K Views
Aug 17, 2026 2:43 PM

Humsienk 12V 100Ah Lithium LiFePO4 Battery w/ 100A BMS

$87

$149

41% off
+ Free S&Hat AliExpress
Visit AliExpress

Why are you downvoting this deal?

Good Deal?
36Comments
Save
Share
Deal Details
Update: This popular Frontpage Deal is now available again.

Humsienk Energy Direct Store via AliExpress has Humsienk 12V 100Ah Lithium LiFePO4 Battery w/ 100A BMS on sale for $100.47 - $14 when you apply promo code 14USDEAL at checkout = ~$86.47. Shipping is free.

Thanks to Deal Editor iconian 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:
  • The Humsienk LiFePO4 battery offers a 100Ah capacity and standard voltage of 12.8V. With A+ grade cells, it boasts an impressive lifespan of up to 20,000 cycles. SDS/UN38.3/FCC/CE/ROHS certifications ensure its quality and safety.
  • This lithium batteries features a built-in 100A BMS protection plate that automatically disconnects if the discharge current exceeds 300±50A, providing enhanced safety.
  • Measuring 10.2x6.6x8.2 inches (26x17x21cm) and weighing 23.2lbs (10.5kg), our battery maximizes energy density while maintaining its performance. Its compact form factor saves space and offers installation flexibility.
  • Operating smoothly from -4°F (-20°C) to 158°F (70°C), the battery includes automatic power-off below -4°F (-20°C) for added protection and longevity.
  • Easily connect up to 4 batteries in series or parallel, achieving a total capacity of up to 20.48kWh. Customize your power solution to suit your needs.
  • Designed to seamlessly fit the Group-24 battery box, our 100Ah LiFePO4 battery eliminates the need for a larger box, simplifying installation.

Editor's Notes

Written by SaltyOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $51.23 less than the next best available price from a reputable merchant with prices starting from $137.70 at the time of this post.
    • Product is shipped from the United States & eligible for returns and refunds, within the designated order protection period

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular Frontpage Deal is now available again.

Humsienk Energy Direct Store via AliExpress has Humsienk 12V 100Ah Lithium LiFePO4 Battery w/ 100A BMS on sale for $100.47 - $14 when you apply promo code 14USDEAL at checkout = ~$86.47. Shipping is free.

Thanks to Deal Editor iconian 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:
  • The Humsienk LiFePO4 battery offers a 100Ah capacity and standard voltage of 12.8V. With A+ grade cells, it boasts an impressive lifespan of up to 20,000 cycles. SDS/UN38.3/FCC/CE/ROHS certifications ensure its quality and safety.
  • This lithium batteries features a built-in 100A BMS protection plate that automatically disconnects if the discharge current exceeds 300±50A, providing enhanced safety.
  • Measuring 10.2x6.6x8.2 inches (26x17x21cm) and weighing 23.2lbs (10.5kg), our battery maximizes energy density while maintaining its performance. Its compact form factor saves space and offers installation flexibility.
  • Operating smoothly from -4°F (-20°C) to 158°F (70°C), the battery includes automatic power-off below -4°F (-20°C) for added protection and longevity.
  • Easily connect up to 4 batteries in series or parallel, achieving a total capacity of up to 20.48kWh. Customize your power solution to suit your needs.
  • Designed to seamlessly fit the Group-24 battery box, our 100Ah LiFePO4 battery eliminates the need for a larger box, simplifying installation.

Editor's Notes

Written by SaltyOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $51.23 less than the next best available price from a reputable merchant with prices starting from $137.70 at the time of this post.
    • Product is shipped from the United States & eligible for returns and refunds, within the designated order protection period

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+83
Good Deal
Bad Deal

Why are you downvoting this deal?

Community Reviews

This Humsienk 12 volt 100 amp hour LiFePO4 battery looks like a strong low cost upgrade for solar, RV, and trailer use. Real world setups with multiple batteries have run air conditioners and other loads for 18 plus months without issues, and the brand line has also held up in a 48 volt golf cart install. The main cautions are the 100 amp BMS, no Bluetooth, and the need for a lithium compatible charger. Mixing ages or battery types can also shorten life or cause uneven loading.

Common Questions (5)

  • It has been used in a travel trailer to run a 12V air conditioner daily for over 18 months with no issues, and four batteries in a solar setup have also performed well. A separate Humsienk 48V 100Ah golf cart battery from the same brand line was installed without problems, which supports the brand's reliability.

  • You should avoid mixing lithium batteries of different ages or lots because the newer battery can end up with much shorter life. If batteries are used together, matched sets should have their own BMS, and unequal voltages can make one battery carry more of the load.

  • A 100A BMS is enough for many 12V RV and solar setups, but it may be limiting if you expect very high current draws. The practical concern is that the battery's value depends on the BMS protecting it correctly, especially since there is no Bluetooth monitoring.

  • Yes, as a one-for-one replacement it can work, but the charger or converter must support lithium charging or the battery may never reach 100%. You also should not mix lithium with AGM or lead-acid batteries in the same bank because they charge at different voltages.

  • It does not have Bluetooth, so monitoring depends on the BMS and any external battery monitor you add. That can be fine at this price, but it makes the BMS's low-voltage protection more important.

Join The Conversation

Share your experience with the Slickdeals community

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

36 Comments

Sign up for a Slickdeals account to remove this ad.

Aug 18, 2026 10:09 PM
2.9K Comments
Joined Dec 2006
NE0tekkAug 18, 2026 10:09 PM
2.9K Comments
Quote from colosports View quoted comment :
One of the major benefits of lithium battery versus AGM or lead acid battery is that lithium battery can discharge to 0% without causing permanent damage to the battery. AGM and lead battery can discharge to 50%. If you just have one battery, a one for one replacement it fine. You will have to make sure your power converter (battery charger) supports lithium battery or else the battery will never get charge up to 100%. If you decide to add a second battery, you can't mix and match battery types since they both charge at different voltage.
To be fair, Lithium will still get damaged to an extent, just not as bad as AGM or lead batteries. Sweet spot for Lithium is 40-70% while lead acid and AGM loves to be at or near 100% at all times.
4
Aug 18, 2026 10:15 PM
32 Comments
Joined Sep 2023
LovelyDeer766Aug 18, 2026 10:15 PM
32 Comments
Can these work with sump pump backup systems?
1
Aug 18, 2026 10:59 PM
633 Comments
Joined Oct 2006
RobmooAug 18, 2026 10:59 PM
633 Comments
Wow! That is less expensive than a deep cycle.
Aug 18, 2026 11:00 PM
633 Comments
Joined Oct 2006
RobmooAug 18, 2026 11:00 PM
633 Comments
Quote from Danimal86 View quoted comment :
100a bms is kinda low right?
Na, that is fairly typical for a 100ah battery.
1
Aug 18, 2026 11:47 PM
2.6K Comments
Joined Oct 2009
coffeeduckAug 18, 2026 11:47 PM
2.6K Comments
no bluetooth, so your value depends on a fully functioning BMS (most BMS don't stop before battery goes below voltage, permanently damaging it and lowering max output)

........ good luck gamblers !
1
Aug 19, 2026 4:24 AM
209 Comments
Joined Apr 2006
grizybaerAug 19, 2026 4:24 AM
209 Comments
Quote from LovelyDeer766 View quoted comment :
Can these work with sump pump backup systems?

Wondering this too. Will the bms protect the battery from overcharging? My sump battery backup uses a simple trickle charger
Aug 19, 2026 12:57 PM
281 Comments
Joined Jan 2014
mickemanAug 19, 2026 12:57 PM
281 Comments
Hmmm, I can't seem to open any posts coming from via AliExpress

Sign up for a Slickdeals account to remove this ad.

Aug 19, 2026 3:48 PM
338 Comments
Joined Feb 2010
awstickyickyAug 19, 2026 3:48 PM
338 Comments
Quote from grizybaer View quoted comment :
Wondering this too. Will the bms protect the battery from overcharging? My sump battery backup uses a simple trickle charger
Same question. Thinking about getting an inverter and one or two of these for my primary sump pump.
Aug 19, 2026 4:09 PM
5.2K Comments
Joined Feb 2009
RandomDealzAug 19, 2026 4:09 PM
5.2K Comments
Price increase to $167.17 before coupon. Deal dead?
Last edited by RandomDealz August 19, 2026 at 10:17 AM.
1
Aug 19, 2026 4:42 PM
73 Comments
Joined Dec 2008
izachpsk8Aug 19, 2026 4:42 PM
73 Comments
Quote from colosports View quoted comment :
I have four of these installed in my travel trailer to run my 12 volt air conditioner daily. Been over 18 months and had no issues with it. It probably charges about 10 to 20% of the capacity daily from my solar panels and power from a 120 volt outlet. I paid about $100 each after coupon. At this price, it is a very solid deal.
What kind of a setup do you have? How many watts from solar panels, which mppt controler, which inverter, and what type of sun? I'm interested in building a setup with this battery for my camper, I have 5x100w polly panels.
Aug 19, 2026 6:54 PM
209 Comments
Joined Apr 2006
grizybaerAug 19, 2026 6:54 PM
209 Comments
Seems dead.. old link does not load
1
Aug 19, 2026 7:42 PM
4 Comments
Joined Oct 2024
BoastfulBird511Aug 19, 2026 7:42 PM
4 Comments
Quote from colosports View quoted comment :
One of the major benefits of lithium battery versus AGM or lead acid battery is that lithium battery can discharge to 0% without causing permanent damage to the battery. AGM and lead battery can discharge to 50%. If you just have one battery, a one for one replacement it fine. You will have to make sure your power converter (battery charger) supports lithium battery or else the battery will never get charge up to 100%. If you decide to add a second battery, you can't mix and match battery types since they both charge at different voltage.
You also don't really want to mix and match lithium batteries of different ages/lots or you will get much lower life out of the "newer" battery.
1
Aug 20, 2026 5:19 AM
1.8K Comments
Joined Feb 2015
kherbinoskieAug 20, 2026 5:19 AM
1.8K Comments
Quote from talonts View quoted comment :
Great! Let me borrow your time machine.
The guy was asking if it happened before and I gave an answer.

On the other hand, you offer nothing but pettiness. Why make the discussion dumb? If you have nothing to say, just be quiet.
2
Aug 27, 2026 10:57 PM
563 Comments
Joined Sep 2006
colosportsAug 27, 2026 10:57 PM
563 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from izachpsk8 View quoted comment :
What kind of a setup do you have? How many watts from solar panels, which mppt controler, which inverter, and what type of sun? I'm interested in building a setup with this battery for my camper, I have 5x100w polly panels.
I have four of these batteries. Four ECO-WORTHY 200W solar panels. Victron Energy SmartSolar MPPT Solar Charge Controller 50 amp. Stock 1000w inverter. Victron Energy Smart Battery Shunt. And a Raspberry Pi running Venus OS. The setup produce around 450W at it's peak in the Florida sun.
2

Sign up for a Slickdeals account to remove this ad.

Pro
Deal Editor
Sep 14, 2026 4:10 AM
27.6K Comments
Joined Mar 2015
SaltyOne
Pro
Deal Editor
Sep 14, 2026 4:10 AM
27.6K Comments
This popular Frontpage Deal is now available again.

Join The Conversation

Share your experience with the Slickdeals community

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