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) DimensionsT 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