Hearing aid battery recharging apparatus

Details Hearing aid battery recharging apparatus Hearing aid battery recharging apparatus

1977-09-21

1980-01-29

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, H02J 704

Patent

active

041863356

ABSTRACT:
An electrical recharging apparatus for hearing aid batteries utilizing C or D dry cells as the charging source, and a solid state regulating circuit connected in shunt with the battery to be charged which maintains the charging current at a safe recharge rate below the level where the battery to be charged will be damaged and the recharge voltage within relatively narrow limits regardless of load, line or service temperature variations.

REFERENCES:
patent: 3297933 (1967-01-01), McCarthy
patent: 3414793 (1968-12-01), Jasperson
patent: 3517295 (1970-06-01), La Puyade
patent: 3603862 (1971-09-01), Chase et al.
patent: 3912998 (1975-10-01), Harris
patent: 3919616 (1975-11-01), Allison
patent: 3919618 (1975-11-01), Coleman et al.

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