China No.1 Battery Supplier!
500Pcs lithium ion battery cell 18650 sent to German   [2016/05/27]        20K 5513125 3.7V 600mAh lithium polymer rechargeable battery sent to Spain   [2016/04/10]        200 sets E-bike conversion kits sent to Canada    [2016/04/10]        300k FEP5056122 4000mah battery sent to Philippine   [2016/04/10]        80000Set 36V 10Ah FEP E-bike battery sent to America   [2016/04/10]        60K FEP903460 3.7V 1300mAh lithium polymer battery sent to England   [2016/04/10]        2k 6.6V A123 2S1P LiFePO4 Battery Pack Sent to USA   [2016/04/10]        5000 Sets 36V 10Ah rear rack e-bike batteries was sent to Israel   [2016/04/10]        FEP has sent 3k 2600mAh High C-Rate Lithium Battery to Spain   [2016/04/10]        50K li polymer battery sent to USA   [2016/04/10]        1K 3.2V 40Ah rechargeable lithium battery sent to Sweden   [2016/04/10]        5K FEP352025 3.7V 130mAh lithium polymer rechargeable battery sent to Korea   [2016/04/10]        80K FEP020815 3.7V 9mAh lithium polymer rechargeable battery sent to USA   [2016/04/10]        1K FEP8045135 Li-polymer 22.2V 5000mAh battery sent to Russia   [2016/04/10]        20K FEP523759 3.7V 1300mAh lithium polymer rechargeable battery sent to Spain   [2016/04/10]        8K 18650 2200mAh 3.7V li-ion rechargeable battery sent to Australia   [2016/04/10]        10K 3.7v 2900mah lithium battery sent to German   [2016/04/10]        60K FEP401225 3.7V 90mAh lithium polymer rechargeable battery sent to USA   [2016/04/10]        3K FEP5765100 3.7V 4500mAh lithium polymer rechargeable battery sent to England   [2016/04/10]        500Sets 24V 20Ah E-bike battery sent to Spain   [2016/04/09]       

Product List hereHome > Product > Product List here

Li-ion Battery Category

Li-ion Battery Category

       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 Battery Category

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) DimensionsT x W x H(mm) Cut-off Voltage (V) Weight (g) Working Temperature (°C)
Typical (mAh) Nominal (mAh)
FEP362035 180 170 3.7 3.8 x 19.7 x 35 2.75 8.0 -20~+60
FEP483048 500 450 3.7 4.3 x 29.7 x 48 2.75 18.0 -20~+60
FEP483048 580 550 3.7 5.0 x 29.7 x 48 2.75 21.5 -20~+60
FEP053048 650 600 3.7 5.2 x 29.7 x 48 2.75 23.0 -20~+60
FEP053040 480 450 3.7 5.2 x 29.7 x 40 2.75 17.0 -20~+60
FEP062248 500 470 3.7 6.2 x 21.7 x 48 2.75 18.0 -20~+60
FEP063030 380 350 3.7 6.2 x 29.7 x 30 2.75 17.5 -20~+60
FEP063048 750 700 3.7 6.2 x 29.7 x 48 2.75 25.5 -20~+60
FEP063448 880 850 3.7 6.2 x 33.7 x 48 2.75 29.0 -20~+60
FEP063465 1250 1200 3.7 6.2 x 33.7 x 65 2.75 39.5 -20~+60
FEP731943 480 450 3.7 7.4 x 18.7 x 43 2.75 17.0 -20~+60
FEP083048 1100 1050 3.7 8.0 x 29.7 x 48 2.75 32.0 -20~+60
FEP083448 1250 1200 3.7 8.0 x 33.7 x 48 2.75 37.0 -20~+60
FEP103448 1500 1450 3.7 10.0 x 33.7 x 48 2.75 43.0 -20~+60
FEP103448 1800 1700 3.7 10.0 x 33.7 x 50 2.75 45.0 -20~+60
FEP103465 2200 2000 3.7 10.0 x 33.7 x 65 2.75 60.0 -20~+60
FEP805085 2600 2400 3.7 8.0 x 49.7 x 85 2.75 70.0 -20~+60
 

 

Product

Contact

Address:
Fl. 2, Bld. 3, DeTai High-tech Industry Park, Longhua, Baoan District, Shenzhen 518109, P.R. China
Telephone:
+86-0755 36622625
Mob: 13632527694
Facsimile:
+86-0755 36622626
Website:
www.firstenergypower.com
www.fep-battery.com
Email: 
Willis@firstenergypower.com
sales@fep-battery.com