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24V LiFEPO4 Batteries with built-in BMS for Sale, Small form factor

matt2006

DIY Solar since 2016
Joined
Jan 2, 2022
Messages
197
Location
North California
I have a good 46 of these K2B24V10EB from K2 Energy.

I Tested them for Capacity.

A 8300mAh for example would be 86.5% capacity or LIFE remaining.

Up to 3 can fit in a medium USPS box shipped for $16

ASKING PRICES:
$95 for >8.5Ah ($105 ebay price) (4 Available)
$88 for 8Ah to 8.475 (12 available)
$75 for 7.5Ah to 7.975 (13 available)
$70 for 7Ah to 7.475Ah (17 available)


SPECIFICATIONS:
Nominal Capacity @ C/5 (Ahr): 9.6Ah
Average Operating Voltage @ C/5: 25.6V
Weight: 5.5Lb (2.5kg)
Height: 6.5in (165mm)
Width: 3.52in (89.5mm)
Length: 4.53in (115mm)

ENERGY SPECS:
Continuous Discharge (A): <- 9.6 (Recommended)
Continuous Discharge (A): <-24 (MAXIMUM)
Pulse Discharge [30 Seconds]: 25 A (amps)
Pulse Discharge [<-2 Seconds]: 40 A (amps)
Charge Current: < 4.8A (amps)
Charge Current [MAX]: < <-9.6A (amps)
Charge Voltage Cutoff: 29.2V (volts)
Discharge Voltage Cutoff: 20.0v (volts) [Recommended]
Discharge Voltage Cutoff [LOW MAX]: 16.0v (volts)
Max Module in Series: 1 [Recommended]

High Temp: 60C = 140F
Low Temp: -20C = -4F

Discharge Ratings:
C/20 (0.48A = 20 Hours)
C/2 (4.8A = 2 Hours)
1C (9.6A = 60 min)
2C (19.2A = 29 minutes)
2.6C (25A = 24 minutes)


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I still have many of them.

24V lifepo4 batteries in this small form factor are VERY rare.
This is basically the only kind that's been made.
 
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