Electricity: battery or capacitor charging or discharging – Diverse charging or discharging rates for plural batteries
Patent
1999-01-26
2000-11-28
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Diverse charging or discharging rates for plural batteries
320160, H01M 1046
Patent
active
061540080
ABSTRACT:
A method for charging a rechargeable battery pack includes providing a charger having first and second charging processes, and manually selecting one of the first and second charging processes. The charging method may include a step for indicating status or end of the selected one charging process. The first charging process may include the steps of providing a fast charging current, indicating end of the fast charging current and providing an equalization current. The second charging process may include the steps of providing a fast charging current, subsequently providing an equalization current and indicating end of equalization current. The second charging process may also include a temperature checking step. Further disclosed is a battery charging apparatus including a charger for charging a battery and having first and second charging processes, and a switch connected to the charger for manually selecting one of the first and second charging processes. The charger may include a microprocessor. Further, the apparatus may include a display output and/or sound output connected to the charger. The display output and/or sound output may indicate status or end of the selected one charging process. The display output may comprise a light bulb, a light emitting diode and/or a liquid crystal display. The sound output may comprise a speaker and/or a piezo-electric device.
REFERENCES:
patent: 5896024 (1999-04-01), Bradus et al.
Bradus Robert
Embrey Janet
Ayala Adam
Black & Decker Inc.
Tso Edward H.
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