Panasonic_LiIon_Charging

Panasonic_LiIon_Charging -...

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LITHIUM ION, PAGE 9 AUGUST 2005 This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to modification without notice. Contact Panasonic for the latest informatio The Functions of the Safety Circuits (Typical Functions) The voltages listed below are typical values and are not guaranteed. The charge voltage varies according to model number. 1. The Overcharge Safety Function The charge stops when the voltage per cell rises above 4.30 ± 0.05 V. The charge restarts when the voltage per cell falls below 4.00 ± 0.15 V. 2. The Overdischarge Safety Function The discharge stops when the voltage per cell falls below 2.3 ± 0.1 V. The discharge restarts when the voltage per cell rises above 3.0 ± 0.15 V. 3. The Overcurrent Safety Function The discharge is stopped when the output terminals are shorted. The discharge restarts when the short is removed. Reference Example of the Safety Circuits The safety circuits in the diagram above are for overcharging, overdischarging, and overcurrent for a single cell battery pack. Please contact Panasonic when two or more cells are connected or when actually using this or other circuits. OVERCHARGE/OVERDISCHARGE/OVERCURRENT SAFETY CIRCUITS 4.2V 4.3V 2.3V 3.0V Battery Pack Unusable Region Charge Batteries Discharge Overdischarge Region Unusable Region Safety Circuits Region Used by the Set Charger
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LITHIUM ION, PAGE 10 AUGUST 2005 This information is generally descriptive only and is not intended to make or imply any representation, guarantee or warranty with respect to any cells and batteries. Cell and battery designs/specifications are subject to modification without notice. Contact Panasonic for the latest information.
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