Charger:
The charger is developed specialized for nickel hydrogen battery, it adopt intelligent one core controller, it is improved lifetime and safety for battery. The charger light displays yellow when it gets electricity, it displays red when it is charging, and it displays green when it is over-charging. If battery is over-discharging, it will use small battery to repair charging, then it is going into normal charging.
Main specification
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Item
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Specification
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Input Voltage
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(110~250V)/50Hz
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Output Voltage
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DC(5±0.5)V`
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Dimensions
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110×68×52 mm
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Peak Load
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1 lamp
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Charging Theory:
The Lithium-ion battery makes use of both constant current and constant voltage charging methods. The charging current is 1500mA±150mA: voltage is 6±0.5 with an approximate charging time of 6-12 hours. The circuit is designed with a steady state charging and control system which automatically regulates the charging process. The circuit we design is near the theory charing for Li-ion battery. For a discharged battery a constant current charge is employed at 1500mA ± 150mA (the charger indicator light is red). When the charging voltage reached 6v,the battery switched to a constant voltage charge(at this point the battery is approximatedly 70% charged) and the current gradually decrease. when the battery is sufficiently charged it automatically cuts off the circuit to protect the battery from over charging(the charger indicator light is green).
Note:
It is not necessary to wait until the battery is completely discharged before charging. Charging can be undertaken whilst the battery is at any capacity and it actually prolongs the life span of the battery if charging is completed prior to complete discharge.