Multi-battery charger

Details Multi-battery charger Multi-battery charger

2011-03-01

2011-03-01

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

C320S110000, C429S001000

Reexamination Certificate

active

07898213

ABSTRACT:
A multi-battery charger for at least one rechargeable battery includes a charger case, and a multi-battery charging module. The charger case includes a plurality of electrically neutral charging terminals spacedly provided thereon, and an electric input terminal adapted for electrically connecting with an external DC power source. The multi-battery charging module is provided in the charger case to electrically communicate with the charging terminals, and includes a recharging circuitry and a polarity detection circuitry. The polarity detection circuitry is electrically connected with the recharging circuitry to accurately detect a positive polarity and a negative polarity of the first and the second battery terminal when the first and the second battery terminals are electrically connected with two of the charging terminals, in such a manner that when a correct polarity of the first and the second battery terminals is determined, the recharging circuitry is activated to properly recharge the rechargeable battery.

REFERENCES:
patent: 5780991 (1998-07-01), Brake et al.
patent: 6610941 (2003-08-01), Pfeiffer

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