K2 energy 12V 5AH starting battery pack
4S2P K2 Energy 26650P 12V5Ah K2 26650EV 8.32Wh Energy 35C/70C 2500-2600mAh High Power LiFePO4 26650 Rechargeable Cell: 3.2V 2600mAh
Specification
1. Characters
NO Items Specification Remarks
1 Battery type LiFePO4 3.2V8.32Wh
2 Brand K2 Energy
3 Nominal capacity 2600mAh C/5
4 Nominal voltage 3.2V
5 Internal resistance <11 mΩ C/5z
6 Weight 80.5g±2 g
7 Continuous discharge current ≤10A 1kHz,AC
8 Burst discharge current 70A 30s, ≥2.5V
9 Charge current 2600mA
10 Charge cut off voltage 3.65V
11 Discharge cut off voltage 2.0V
12 Working temperature -20ºC--+60ºC
13 Max continuous discharge current 30A 30s, ≥2.5V
14 Max burst discharge current 90A
15 Max charge current 52A
16 Max charge cut off voltage 4.1V
17 Max discharge cut off voltage 2.0V
2. Battery performance
A:Discharge characteristics:
Discharge capacity/Nominal capacity×100%
A)0.2C5A ≥100% B)0.5C5A ≥98% C)1C5A ≥95% D)2C5A ≥90%
The Curves of charging and discharging should be smooth Standard charge at 0.2C5A under condition of normal atmospheric pressure and the environmental for 10min and discharge at 0.2C5A,0.5C5A,1C5A,2 C5A to 2.5V respectively. Charge/discharge cycle can be conducted for 3 times before meeting the Standards (the same below).
B:Normal Storage
Residual Capacity≥Nominal capacity*85% Recoverable capacity≥ Nominal capacity*90% OCV decrease≤3% Internal Resistance increase≤20%
Measure initial status and initial capacity. Store for 28 days after standard charge, the measure final status and residual capacity at 0.5C5A to 2.5V;After charge/discharge (0.5C5A/0.5C5A) cycle can be conducted for 3 times, recoverable capacity will be tested at 0.5C5A
C:Cycle Life
Discharge capacity≥Nominal Capacity 80%
Measure initial status and initial capacity, then conduct 1C5A/1C5A cycle for 1600 times. The discharge capacity shall be measured after 1600 cycle.
D:High-low Temperature Discharge
0.2C5A Discharge time Stores 3 month-long the batteries ≥4.5h;Stores 6 month-long the batteries ≥4.25h;Stores 12 month-long the batteries ≥4h.Measure initial capacity and initial status. Battery charge after 3.35V .measure initial capacity. The distinction room temperature stores 3 months, 6 months, 12 months later, measure battery's final condition,Then circulates 3 time record battery's discharge time by 0.5C/0.5C.
Other models:
| Item No. |
LiFePO4 Motorcycle Start Battery
with K2 cells |
LiFePO4 Motorcycle Start Battery with A123 cells |
| BB-SB4S1P |
K2 26650 2500mAh 4S1P
12V/2.5Ah
Max. constant current: 70A(5s)
Compatible: 50~250cc Motorcycle |
A123 26650 2500mAh 4S1P
12V/2.5Ah
Max. constant current: 70A(5s)
Compatible: 50~250cc Motorcycle
|
A123 26650 2300mAh 4S1P
12V/2.3Ah
Max. constant current: 70A(5s)
Compatible: 50~250cc Motorcycle
|
| BB-SB4S2P |
K2 26650 2500mAh 4S2P
12V/5Ah
Max. constant current: 120A(5s)
Compatible: 50~250cc Motorcycle |
A123 26650 2500mAh 4S2P
12V/5Ah
Max. constant current: 120A(5s)
Compatible: 50~250cc Motorcycle
|
A123 26650 2300mAh 4S2P
12V/4.6Ah
Max. constant current: 120A(5s)
Compatible: 50~250cc Motorcycle
|
| BB-SB4S3P |
K2 26650 2500mAh 4S3P
12V/7.5Ah
Max. constant current: 180A(5s)
Compatible: 500~1300cc Motorcycle
|
A123 26650 2500mAh 4S3P
12V/7.5Ah
Max. constant current: 180A(5s)
Compatible: 500~1300cc Motorcycle |
A123 26650 2300mAh 4S3P
12V/6.9Ah
Max. constant current: 180A(5s)
Compatible: 500~1300cc Motorcycle
|
| BB-SB4S4P |
K2 26650 2500mAh 4S4P
12V/10Ah
Max. constant current: 260A(5s)
Compatible: 500~1300cc Motorcycle
|
A123 26650 2500mAh 4S4P
12V/10Ah
Max. constant current: 260A(5s)
Compatible: 500~1300cc Motorcycle
|
A123 26650 2300mAh 4S4P
12V/9.2Ah
Max. constant current: 260A(5s)
Compatible: 500~1300cc Motorcycle
|
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