Powersolve GMB Series - Manual (Page 5)

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England
Tel: 01635 521858 Fax: 01635 523771 Email: [email protected]
Lithium Polymer
Rechargeable Batteries
Lithium Polymer Standard Product List (large capacity)
Type
Nominal
capacity
mAh
Nominal
Voltage
Thickness
(mm)
Width
(mm)
Length
(mm)
Weight
(grams)
GMB6265125 4800 3.7 6.2±0.2 65±0.5 125±2.0 100.0
GMB8545135 4900 3.7 8.5±0.2 45±0.5 135±3.0 102.0
GMB0832200 5000 3.7 8.0±0.2 32±0.5 200±1.0 102.0
GMB0848135 5000 3.7 8.0±0.2 48±1.0 135±1.0 102.0
GMB7553135 5000 3.7 7.5±0.2 53±0.5 135±1.0 102.0
GMB0932200 5400 3.7 9.0±0.2 32±0.5 200±1.0 106.0
GMB45103122 5500 3.7 4.0±0.2 103±0.5 122±1.0 110.0
GMB0853135 6000 3.7 8.0±0.2 53±0.5 135±3.0 128.0
GMB1050140 6500 3.7 10.0±0.2 50±0.5 140±1.0 135.5
GMB0890170 10000 3.7 8.0±0.2 90±0.5 170±1.0 240.0
GMB7872196 10000 3.7 7.8±0.2 72±0.6 196±1.0 240.0
GMB9560120 6800 3.7 9.5±0.2 60±0.5 120±1.0 145.0
Electrical Specification
Charge Voltage 4.2V per single cell
Nominal Voltage 3.7V per single cell (open circuit voltage 3.6 to 3.85V when shipped)
Nominal Capacity At 0.2C discharge down to 2.75V cut off voltage
Cycle Life ≥300 Cycles, one cycle refers to one charge period and one discharge period.
Test condition Charge 0.2C to 4.2V discharge 0.2VC to 2.75V. The cycle time is when the
discharge capacity is about 75% of the rated capacity.
Impedance Cell impedance ≤100mΩ
Charging Methods
Charging Current
Low Temperature Charging (0º-10ºC)
Standard Charging (0º-45ºC)
Fast Charging (10º- 45ºC)
Charge Time
Standard Constant Current: 0.2C, Fast Constant Current: 0.5C
Below 0.1C CC from 2.75V to 4.2V, then CV to 0.05C cut off
Standard 0.2C constant current to 4.2V, constant voltage at 4.2V to cut off current ≤0.05C
Fast Charge 0.5Cconstant current to 4.2V, constant voltage at 4.2V to cut of current ≤0.05C
Standard Charge 8 hours, Fast Charge time 2.8 hours
Standard Discharge Current (-10º-45ºC)
Max Discharge Current
Constant discharge at 0.2C to cut off voltage of 2.75V
1C
Discharge Cut Off Voltage 2.75V
Operating Temperature Discharge -10ºC to +45ºC, Charge 0ºC to +45ºC. Cells must be stored at 3.6 to 3.9V. Over
long storage periods cells should be cycled every 90 days. The method is to do a
charge/discharge cycle with standard method, then charge to 3.6 to 3.9V
Operating Humidity 45-75% relative humidity
Long Term Storage Temperature -5ºC to +35ºC, relative humidity 45-75%, Voltage 3.8V±0.1V
Note: All batteries above can be supplied in multiple packs to increase voltage or current. Custom sizes
can also be accommodated but these will be subject to tooling charges and minimum order quantities.
Consult sales office for details. All cells and battery packs are provided with Protective
Circuit Modules (PCM) to protect against over charging, over discharging and over current.
Safety Tests
Test Test Conditions and Method Results
Overcharge After standard charging, the cell is connected for 8 hours while the constant voltage
is held at 4.5V and standard charging current flow through it
No explosion or fire
Short Circuit A charged battery is short circuited for 1 hour at 0.04Ω No explosion or fire
Heat Shock The cell is placed in a thermal chamber and temperature is raised to 120±2ºC at the rate of
5±2ºC min and held for 10 minutes, then cooled to room temperature at the rate of 5±2ºC min No explosion or fire
Humidity and
heat test
A battery is placed in a box for 48 hours where the temperature is 40ºC±2ºC and the relative
humidity is 90-95%
No explosion or fire
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