Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1990-03-06
1992-06-02
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 14, 320 15, H02J 700, H01M 1046
Patent
active
051190087
ABSTRACT:
A battery charging apparatus, which charges a secondary battery such as an Ni-Cd battery being used for a battery-driven equipment such as a VTR camera, is provided with a first loading unit for only charging a loaded battery and a second loading unit for charging a loaded battery, for discharging the charged battery, for measuring the capacity of the discharged battery, and for displaying the measured capacity by four steps of its percentage, and which is capable of using either of the both loading units according to the qualities of the battery characteristics of the battery. In this battery charging apparatus, a new battery or a battery with good battery characteristics substantially similar to the new one are charged in the first loading unit and an old battery or a battery with inferior battery characteristics are charged in the second loading unit. The former unit can charge the battery in a shorter time and the latter one can recover the better battery characteristics by repeating the charging and discharging operation to the battery with inferior battery characteristics a few times.
REFERENCES:
patent: 4016474 (1977-04-01), Mason
patent: 4698579 (1987-10-01), Richter et al.
"Accessories That Match Your Video System to Your Shooting Style," Canon, Inc., 1987 E70 Camcorder brochure CR-E7 Charger & 2 BP-E77K Batt for E70.
Morita Hideyo
Toya Syouiti
Hickey R. J.
Sanyo Electric Co,. Ltd.
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