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Looking for 6F22 ("9V") 3S (not 2S) LiFePO4 batteries (need 9.6V nominal)
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wb0gaz:
Looking for source/type/make/manufacturer/brand for 6F22 type LiFePO4 battery that has three cells in series (so nominal voltage is 9.6V.

Any types seen recently?

Thanks,

Dave
bdunham7:
https://budgetlightforum.com/node/53245

No US availability that I can see.  Chargers are available under the SoShine name.  If you find any, I'd be interested in knowing how well they work.
thm_w:
https://www.aliexpress.com/item/32820366035.html

edit: as below manufacturer verified this is NOT LiFePO4..
wb0gaz:
Found that soshine actually has their own web site and cites their 6F22 battery -

http://www.soshine.com.cn/a57.aspx

Looks like it's now (vs. the LiFePO4 mentioned previously) two LiPo cells.

Still looking for 3S1P LiFePO4 in 6F22.

###

New 9V Li-po Rechargeable Battery: 650mAh 7.4V

Bar Code: 6951151510211

Model: Li-7.4V-650S

 

Can charged by other 9V charger
Slim design(15.4mm)
Ready to use at any time

 

Specification:

Type:      Rechargeable  Li-Po
Dimension:(48.5+-0.5)*(26.1+-0.2)*(15.4+-0.3)mm (max)
C5mAh:  630(mini)
C5mA:    650mAh
Nominal Voltage:    7.4V
Capacity : Nominal   650mAh
               Minimum  630mAh

Internal resistance: 144-150 mΩ
when discharged at 0.2C5mA to 5.5V
Recommended Charging Conditions:0.2C5mA charge termination control parameters taper current 0.01C5mA at 8.4V
Service Life: 1,000 cycles(>=60% C5mAh,0.2C discharge)
Weight: 28 g (1 cell), 67 (2 cells with package)
Charging Voltage:  8.4+/-0.15V
Ambient Temperature Range
Charging :      0-45 centigrade
Discharging:  -20 to +60 centigrade
Storage :       -20 to +40 centigrade

 
Note:
(1) The batteries should be stored at room temperature,charged to about 30% to 50% of capacity.
(2) During long term storage,in order to ensure the battery to maintain the capacity level,we suggest Li-ion batteries should be charged and discharged once every 6 months.
0xdeadbeef:
That's a normal LiIon battery. For whatever reason, Soshine seems to have abandoned the LiFePO4 6F22 batteries for some years. I bought two a few years ago and now regret I haven't bought more since the two I bought work great for my Fluke 87V and a LEM current clamp. So, I'm trying to buy a few more of these batteries for two years or so. But they have vanished from the stores quite some time ago and while Soshine still sells the chargers for the batteries, there's no other hint on their website that these were ever produced or sold.
Like with many other product that were great, these LiFePO4 6F22 batteries are simply gone and nobody seems to care. Everybody seems to be happy with the LiIon batteries even though the voltage is considerably on the low end from the very start.
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