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Queen Battery QB10440 300mAh - a 3.7V AAA-size Li-ion battery
#1
Video 
10440 size is more known as AAA - it means that the cell is 10mm in diameter and 44mm long. In Lithium world 10440 is a rare size but you can find 3.2V LiFePO4 and 3.7V Li-ion models just by googling "10440". To feel the difference let's take a look at 10440 (AAA) next to 14500 (AA) and 18650:
[Image: 254376_original.jpg]
[Image: 254541_original.jpg]

This review's hero, Queen Battery QB10440, is a flat-top unprotected 300mAh-rated cell which also can be ordered with add-on protection PCB and button-top cap.
[Image: 255245_original.jpg]

The battery was bought from my reliable supplier (Queen Battery) and tested with ZKETECH EBC-A20 and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A.
[Image: 87638_original.jpg]

I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals
[Image: 210421_original.jpg]
[Image: 209931_original.jpg]

I've followed all the prescriptions of the IEC61960-2003 standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times).


Queen Battery QB10440 300mAh

The cell's heat shrink tube shows brief specifications but has absolutely no data about production date or batch number.
[Image: 254839_original.jpg]

The main specifications from Queen Battery QB10440's datasheet:
Nominal capacity: 320mAh
Minimum capacity: 313mAh
Nominal voltage: 3.7V
Standard charge current: 150mA (0.5C)
Max charge current: 300mA (1C)
Charge end voltage: 4.20V
Max continuous discharge current: 600mA (2C)
Discharge cut-off voltage: 2.75V
AC impedance at 1KHz: ≤70mΩ
Weight: 9g

Measured DC IR at 300mA in fully charged condition was 63±10mΩ (using EB Tester Software's Resistance test)

Measured weight of the tested cell was 8.6g and the actual dimensions - 10.2×42.9mm
[Image: 255778_original.jpg]

Queen Battery QB10440 300mAh capacity test results:
[Image: 255133_original.png]

In case of QB10440 0.2C (for checking nominal capacity) is equal to 60mA and 0.02C (charge cut-off current) - 6mA. In both cases my battery tester allows 100mA as the minimum value which could be set, so instead of 6mA i cut the charge at 100mA and instead of 60mA test i did 100mA one. Even in those conditions QB10440's capacity was about 350mAh at 100mA discharge!!! I suggest that once it's charged using 6mA cut-off and discharged at 60mA it's capacity will be around 400mAh. At 300 and 600mA the curves look good. This guy handles 2C rate easily but i'd not recommend to go much higher than 600mA. This cell is not meant to power amp-hungry devices.

So, quick pros and cons:
+ more than 350mAh real capacity
+ up to 2C discharge rate
- 2.75V discharge cut-off current (harder to find a suitable protection PCB. Solution is to buy protected cells).

Here is the video version of this review:
[Image: 255682_original.jpg]


Check out my YouTube channel for batteries, chargers and other stuff reviews.
I've launched my blog where you can find all my reviews in one place. Every new test/review will be first published on YouTube and in the blog. I'll be happy to see new subscribers, comments, suggestions and just your thoughts.
Headrc and ozz93666 like this post
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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#2
Photo 
As usual another very professional review from thunderheart . 

I've no idea what people do with these cells , obviously cannot be put in domestic products which take alkaline AAA ...

Compact size comes with a penalty they have exactly half the WHrs/gm  that 18650s have...

For small devices prismatic seems more convenient , same capacity ... 

[Image: s-l225.jpg]Already has wires attached and weighs in at 7 gm ... saving 1.6gm
thunderheart likes this post
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#3
(06-16-2019, 07:30 AM)ozz93666 Wrote: As usual another very professional review from thunderheart . 

Thanks ozz93666!

(06-16-2019, 07:30 AM)ozz93666 Wrote: I've no idea what people do with these cells , obviously cannot be put in domestic products which take alkaline AAA ...

The simplest scenario i use is the modification of alkaline-based small devices to work with rechargeable Lithium. Many of them are designed to work with 3S 1.5V alkaline (4.5V) and fail with 3S 1.2V Ni-MH (3.6V) cells. Add a TC4056A board with battery protection to this cell and forget about alkaline and Ni-MH))
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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#4
Always good to know about new devlopments ...thanks once again Thunderheart
thunderheart likes this post
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#5
Well, there are mostly for the flashlight community. Smile
The power of lithium ion is in our hands!
We'll show them what we're made of!
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#6
ozz93666 made me think about shooting a video about Alkaline/Ni-MH to Li-ion conversion))))))) Today i started it. Hope to not be too lazy and finish it soon))))))
Geek likes this post
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
Reply
#7
(06-17-2019, 08:06 PM)thunderheart Wrote: ozz93666 made me think about shooting a video about Alkaline/Ni-MH to Li-ion conversion))))))) Today i started it. Hope to not be too lazy and finish it soon))))))

I often use LiFe for such conversions. Especially where there are 2 AA batteries used. I make a spacer with a 1s bms inside of it. Gives a reasonably similar run time to normal NiMh batteries, without self discharge issues.
thunderheart likes this post
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#8
In that case, wouldn't Eneloop 1900mAhs be best here?
The power of lithium ion is in our hands!
We'll show them what we're made of!
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#9
(06-18-2019, 03:08 PM)BlueSwordM Wrote: In that case, wouldn't Eneloop 1900mAhs be best here?

There are no 1900mAh AAA Eneloops. Eneloop pro (AAA) is 950mAh/1.2V which means 1.14Wh. 3 cells would give 3.42Wh.
3 x QB10440s in parallel would give more than 3.84Wh.
The best would be Panasonic NCA103450 if the 3xAAA holder would be cut to fit the prismatic cell. It would give 8.63Wh (in fact it would give much more because the transmitter would discharge it at much lower current than 450mA at which NCA103450's energy is 8.63Wh). It's also the cheapest way to go.

(06-18-2019, 04:13 AM)Geek Wrote:
(06-17-2019, 08:06 PM)thunderheart Wrote: ozz93666 made me think about shooting a video about Alkaline/Ni-MH to Li-ion conversion))))))) Today i started it. Hope to not be too lazy and finish it soon))))))

I often use LiFe for such conversions. Especially where there are 2 AA batteries used. I make a spacer with a 1s bms inside of it. Gives a reasonably similar run time to normal NiMh batteries, without self discharge issues.

I love them but they cost unreasonably tooooooo much. I mean AA and AAA ones.
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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