| 摘要 |
A sealed battery is provided having three or more terminals, with at least one positive terminal on one end of the battery and at least one negative terminal on the other end of the battery. The extra terminal is coupled to a reserve portion of the cathode or anode, with the main and reserve portions of the cathode or anode being separated by insulation. The extra terminal may be located on the top, bottom, or side of the battery according to the various embodiments provided. Battery holders for accomodating the three terminal batteries are also provided. With three terminals, different types of switching may be utilized to bring the reserve into play automatically, or by manual or remote activation, and either in a parallel manner with the main cell, or independently thereof. The sealed batteries having three terminals are designed to be backward compatible so that they may be used in standard battery holders.
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