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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
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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

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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.

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36 Comments

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Sep 14, 2026 4:31 AM
2.4K Comments
Joined Mar 2009
TheOldDudeSep 14, 2026 4:31 AM
2.4K Comments
Oooooh "A+ grade cells"!!
1
1
Sep 14, 2026 11:54 AM
1.4K Comments
Joined Feb 2008
TheYozSep 14, 2026 11:54 AM
1.4K Comments
Is this a good for a sump pump battery backup?
Sep 14, 2026 2:14 PM
2.8K Comments
Joined Jun 2006
JamesqSep 14, 2026 2:14 PM
2.8K Comments
Quote from BoastfulBird511 View quoted comment :
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.

it is my understanding that you don't mix and match within the BMS. Outside of the BMS you can mix and match as much as you want as long as each matched set has their own BMS.
1
Sep 14, 2026 3:24 PM
101 Comments
Joined Jun 2026
LivelyBird4050Sep 14, 2026 3:24 PM
101 Comments
Quote from TheOldDude View quoted comment :
Oooooh "A+ grade cells"!!
I prefer the A+++ super +++
1
Sep 14, 2026 4:05 PM
302 Comments
Joined May 2008
raacerxSep 14, 2026 4:05 PM
302 Comments
Anyone seen a good deal lately on a 100ah with Bluetooth?
Oct 21, 2026 3:20 PM
4 Comments
Joined Oct 2024
BoastfulBird511Oct 21, 2026 3:20 PM
4 Comments
Quote from Jamesq View quoted comment :

it is my understanding that you don't mix and match within the BMS. Outside of the BMS you can mix and match as much as you want as long as each matched set has their own BMS.
even if you're outside of the BMS, if the battery voltages are differing some amount, whether from the battery aging or degrading, you will not draw from them equally, so one battery is taking more of the load.

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Share your experience with the Slickdeals community

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