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Lithium-ion Batteries

       By comparison with other rechargeable battery systems, rechargeable Lithium-ion batteries provide you with better performances, such as higher capacity, higher energy density, no memory effect, longer cycle life and faster charging. In addition, lithium-ion batteries have less self-discharge rate, only 5~8% self-discharge of capacity per month. Therefore, lithium-ion battery packs would offer you longer talking hours, smaller size, lighter weight and shorter charging time.

 

Charging Technology
      Unlike other rechargeable batteries, lithium-ion batteries request a two-step charging process. The first charge step is to charge a lithium-ion battery with constant current up to its upper limit voltage of 4.2V. The second step is to keep this upper limit voltage as a constant and charging the lithium-ion battery with a current taping down to 1~5% of 1C. Therefore, the termination of charging process for a lithium-ion battery is determined by the current, but not by the voltage. A professional charger is requested for completing the two-step charging process for lithium-ion batteries. The following figure illustrates an example of charging process for lithium-ion batteries. At the first step, your lithium-ion battery receives about 60% of energy by constant current charging. At the end of the second step, your lithium-ion battery would reach the 100% of SOC, that means fully charged.
 
 
Li-ion Button Cells
Model
Rated Capacity
Nominal Voltage (V)
Dimensions
Cut-off Voltage (V)
Weight (g)
Working
Temperature. (°C)
Typical (mAh)
Nominal (mAh)
Diameter
(mm)
Height
(mm)
LIR1620
12
10
3.7
16.0
2.2
2.75
1.2
-20~+60
LIR2016
15
12
3.7
20.0
1.8
2.75
1.6
-20~+60
LIR2025
30
20
3.7
20.0
2.7
2.75
2.2
-20~+60
LIR2032
40
30
3.7
20.0
3.3
2.75
2.5
-20~+60
LIR2430
65
55
3.7
24.5
3.2
2.75
3.7
-20~+60
LIR2450
120
100
3.7
24.5
5.2
2.75
5.5
-20~+60
LIR2477
180
150
3.7
24.5
7.9
2.75
7.0
-20~+60

Li-ion Prismatic Batteries with Aluminum Can
Model
Rated Capacity
Nominal Voltage (V)

   Dimensions          T x W x H            (mm)

Cut-off Voltage (V)
Weight (g)
Working Temperature (°C)
Typical (mAh)
Nominal (mAh)
GEB362035
180
170
3.7
3.8 x 19.7 x 35
2.75
8.0
-20~+60
GEB483048
500
450
3.7
4.3 x 29.7 x 48
2.75
18.0
-20~+60
GEB483048
580
550
3.7
5.0 x 29.7 x 48
2.75
21.5
-20~+60
GEB053048
650
600
3.7
5.2 x 29.7 x 48
2.75
23.0
-20~+60
GEB053040
480
450
3.7
5.2 x 29.7 x 40
2.75
17.0
-20~+60
GEB062248
500
470
3.7
6.2 x 21.7 x 48
2.75
18.0
-20~+60
GEB063030
380
350
3.7
6.2 x 29.7 x 30
2.75
17.5
-20~+60
GEB063048
750
700
3.7
6.2 x 29.7 x 48
2.75
25.5
-20~+60
GEB063448
880
850
3.7
6.2 x 33.7 x 48
2.75
29.0
-20~+60
GEB063465
1250
1200
3.7
6.2 x 33.7 x 65
2.75
39.5
-20~+60
GEB731943
480
450
3.7
7.4 x 18.7 x 43
2.75
17.0
-20~+60
GEB083048
1100
1050
3.7
8.0 x 29.7 x 48
2.75
32.0
-20~+60
GEB083448
1250
1200
3.7
8.0 x 33.7 x 48
2.75
37.0
-20~+60
GEB103448
1500
1450
3.7
10.0 x 33.7 x 48
2.75
43.0
-20~+60
GEB103448
1800
1700
3.7
10.0 x 33.7 x 50
2.75
45.0
-20~+60
GEB103465
2200
2000
3.7
10.0 x 33.7 x 65
2.75
60.0
-20~+60
GEB805085
2600
2400
3.7
8.0 x 49.7 x 85
2.75
70.0
-20~+60