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populargabe23111 posted Yesterday 01:23 PM
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populargabe23111 posted Yesterday 01:23 PM

Humsienk 12V 100Ah Lithium LiFePO4 Battery w/ 100A BMS $84 + free s/h

$84

$104

19% off
AliExpress
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Humsienk Direct Store via Aliexpress

Ships from a U.S. Warehouse
Pre-coupon price as of this post is $103.72
$103.72 - coupon $20 coupon RE20 = $83.72
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Humsienk Direct Store via Aliexpress

Ships from a U.S. Warehouse
Pre-coupon price as of this post is $103.72
$103.72 - coupon $20 coupon RE20 = $83.72

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11 Comments

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Pro
Yesterday 01:47 PM
1,566 Posts
Joined Feb 2011
jongasse
Pro
Yesterday 01:47 PM
1,566 Posts
Uff, this is crazy pricing. 3x of these still beat the recent ECO-WORTHY 320Ah although that has a BT BMS, but at this price I could patch in a BT cell monitor and still come out ahead.

Is this a special deal or sign of things to come?
Yesterday 03:52 PM
85 Posts
Joined Nov 2019
glassnerdYesterday 03:52 PM
85 Posts
https://www.aliexpress.us/item/32...pt=glo2usa
or just order it with bluetooth if thats what you want, that's what i did it'll be here tomorrow. youtube review looked decent so i'm taking a chance on it for an off-grid project.
Yesterday 06:18 PM
726 Posts
Joined Jul 2003
SkellingtonYesterday 06:18 PM
726 Posts
Quote from glassnerd :
https://www.aliexpress.us/item/32...pt=glo2usaor just order it with bluetooth if thats what you want, that's what i did it'll be here tomorrow. youtube review looked decent so i'm taking a chance on it for an off-grid project.
Are you buying more than one? Would it be possible to monitor all of them at the same time if only one was BT and the others were not if they were connected together?
Yesterday 07:06 PM
6 Posts
Joined Apr 2014
rskippyYesterday 07:06 PM
6 Posts
I actually received two of these with Bluetooth a couple of days ago. The first one tested below capacity, so I am retesting now. The other one was a 12v 150v with Bluetooth. I will charge it tomorrow and test it for capacity. If the other does not test to capacity, I will be requesting a refund. Make sure you do your capacity test.
Pro
Yesterday 07:34 PM
768 Posts
Joined Aug 2008
siulam
Pro
Yesterday 07:34 PM
768 Posts
Quote from rskippy :
I actually received two of these with Bluetooth a couple of days ago. The first one tested below capacity, so I am retesting now. The other one was a 12v 150v with Bluetooth. I will charge it tomorrow and test it for capacity. If the other does not test to capacity, I will be requesting a refund. Make sure you do your capacity test.
How do you test it? Would like to perform the test on mine, thanks
Yesterday 07:47 PM
13,815 Posts
Joined Aug 2004
avalonYesterday 07:47 PM
13,815 Posts
ecoworthy -might- be around in a few years

is a no name too cheap to be true going to be around when all the cells start to fail or radically drop capacity in a few years?

tariffs might disappear after November, depends how drunk on power the supremecourt actually is, wait and see
2
Yesterday 08:19 PM
5,529 Posts
Joined Jul 2017
Luigis3rdcousinYesterday 08:19 PM
5,529 Posts
Quote from avalon :
ecoworthy -might- be around in a few yearsis a no name too cheap to be true going to be around when all the cells start to fail or radically drop capacity in a few years?tariffs might disappear after November, depends how drunk on power the supremecourt actually is, wait and see
I think you would be in the same boat when both brands batteries fail around the same time.

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Yesterday 08:46 PM
2,424 Posts
Joined Aug 2009
mrbb008Yesterday 08:46 PM
2,424 Posts
What charger do you use to charge these? Can you use a car battery charger that can do lifepo4?
Yesterday 09:26 PM
85 Posts
Joined Nov 2019
glassnerdYesterday 09:26 PM
85 Posts
Quote from Skellington :
Quote from glassnerd [IMG]https://slickdeals.net/images/misc/backlink.gif[/IMG] :
https://www.aliexpress.us/item/32...pt=glo2usaor just order it with bluetooth if thats what you want, that's what i did it'll be here tomorrow. youtube review looked decent so i'm taking a chance on it for an off-grid project.
Are you buying more than one? Would it be possible to monitor all of them at the same time if only one was BT and the others were not if they were connected together?
only buying one right now, may add a second later for another project. i believe each BMS will need bluetooth enabled to track anything beyond just voltage, which doesn't tell us much with lifepo4.
Yesterday 10:31 PM
6 Posts
Joined Apr 2014
rskippyYesterday 10:31 PM
6 Posts
Quote from siulam :
How do you test it? Would like to perform the test on mine, thanks
Lol, won't be able to test yours for you. Here is what I am using. Its a little tricky to get set up, but once you have it going, it works good.

https://www.amazon.com/dp/B07HB3XK7L
Last edited by missiethegal October 9, 2025 at 03:31 PM.
Pro
Today 05:30 AM
1,566 Posts
Joined Feb 2011
jongasse
Pro
Today 05:30 AM
1,566 Posts
Quote from mrbb008 :
What charger do you use to charge these? Can you use a car battery charger that can do lifepo4?
It looks like proper 14.6V 10A chargers cost $15 and this would take 10h to charge. OTOH, I have a ton of assorted car battery chargers lying around. So I will use the car battery chargers and monitor the voltage

In reality, lithium batteries require a constant current-constant voltage (CC-CV) charging profile, where the current is held constant until the battery reaches a certain voltage level but car battery chargers are built for constant voltage charging profile, where the voltage is held constant and the current decreases as the battery charges.

After a few seconds of thinking and some measurements when this battery arrives, my car battery chargers should work, unless one of them has extra shenanigans like recondition/de-sulfation, which shouldnt be used here.

This wouldn't charge to 100% SOC though.

If I wasn't on slickdeals, I would have coughed up the $15 or $50 or whatever proper LiFePO4 battery chargers cost.


Quote from rskippy :
I actually received two of these with Bluetooth a couple of days ago. The first one tested below capacity, so I am retesting now. The other one was a 12v 150v with Bluetooth. I will charge it tomorrow and test it for capacity. If the other does not test to capacity, I will be requesting a refund. Make sure you do your capacity test.
What does the app show? Does it show anything more than the temperature and external voltage at the terminals?

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