Multi-Battery Charger
First Claim
1. A multi-battery charger for at least one rechargeable battery having a first and a second battery terminal, comprising:
- a charger case comprising at least three electrically neutral charging terminals as spacedly provided thereon as multi-contact terminals of said charger case, and an electric input terminal adapted for electrically connecting with an external DC power source; and
a multi-battery charging module, which is provided in said charger case to electrically communicate with said charging terminals, and comprises;
a recharging circuitry having a positive recharge terminal and a negative recharge terminal adapted for electrically connecting with said battery terminals in correct polarity through said charging terminals for properly recharging said rechargeable battery; and
a polarity detection circuitry electrically connected with said recharging circuitry to accurately detect a positive polarity and a negative polarity of said first and Is said second battery terminal when said first and said second battery terminals are electrically connected with at least two of said charging terminals, in such a manner that when a correct polarity of said first and said second battery terminals is determined, said recharging circuitry is activated to properly recharge said rechargeable battery.
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Accused Products
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.
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Citations
20 Claims
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1. A multi-battery charger for at least one rechargeable battery having a first and a second battery terminal, comprising:
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a charger case comprising at least three electrically neutral charging terminals as spacedly provided thereon as multi-contact terminals of said charger case, and an electric input terminal adapted for electrically connecting with an external DC power source; and a multi-battery charging module, which is provided in said charger case to electrically communicate with said charging terminals, and comprises; a recharging circuitry having a positive recharge terminal and a negative recharge terminal adapted for electrically connecting with said battery terminals in correct polarity through said charging terminals for properly recharging said rechargeable battery; and a polarity detection circuitry electrically connected with said recharging circuitry to accurately detect a positive polarity and a negative polarity of said first and Is said second battery terminal when said first and said second battery terminals are electrically connected with at least two of said charging terminals, in such a manner that when a correct polarity of said first and said second battery terminals is determined, said recharging circuitry is activated to properly recharge said rechargeable battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19)
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15. A method of charging a rechargeable battery by a multi-battery charger comprising a plurality of charging terminals, a recharging circuitry, and a central processing module, wherein the rechargeable battery has a first and a second battery terminal but unknown polarity, wherein the method comprises the steps of:
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(a) electrically connecting one of said charging terminals and another of said charging terminals with said first battery terminal and said second battery terminal respectively, wherein said charging terminal electrically which connects to said first battery terminal is defined as a reference charging terminal, and said charging terminal which electrically connects to said another of said charging terminals is defined as a tester charging terminal; (b) electrically connecting said reference charging terminal with a negative terminal of said recharging circuitry; (c) electrically connecting said tester charging terminal with a positive terminal for said recharging circuitry; (d) starting a tester charging process by said central processing module for acquiring a recharging voltage pattern; (e) comparing said recharging voltage pattern with a reference voltage pattern; and (f) starting a substantive recharge process when said recharging voltage pattern substantially resembles said reference voltage pattern so as to fully recharge said rechargeable battery by said recharging circuitry; and (g) electrically re-connecting said charging terminals with said recharging circuitry when said recharging voltage pattern departs substantially from said reference voltage pattern. - View Dependent Claims (16, 18, 20)
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Specification