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From: Koning Betweter on 30 Jul 2010 11:01 On 2009-11-02 10:14:57 +0100, Robert Baer said: > -dave- wrote: >> After only a few cycles, some very cheap AA NiCads I had bought were >> being rejected by my "intelligent" charger. >> >> Is there something about the chemistry of these cells which causes them >> to present the wrong electrical characteristics for the charger? > The charger is intelligent enough to see and reject certain brands.. > No joke; i have one (different that whatever you have) that only > accepts one brand of cell for charging. I wouldn't be suprised if the new Apple AA-loader will only work with Apple AA-cells. Same as my Uniross batteries, they just load with the Uniross loader. 8( -- Ik praat liever tegen een domoor, dan tegen dovemansoren.
From: Robert Baer on 30 Jul 2010 11:19
Koning Betweter wrote: > On 2009-11-02 10:14:57 +0100, Robert Baer said: > >> -dave- wrote: >>> After only a few cycles, some very cheap AA NiCads I had bought were >>> being rejected by my "intelligent" charger. >>> >>> Is there something about the chemistry of these cells which causes >>> them to present the wrong electrical characteristics for the charger? >> The charger is intelligent enough to see and reject certain brands.. >> No joke; i have one (different that whatever you have) that only >> accepts one brand of cell for charging. > > I wouldn't be suprised if the new Apple AA-loader will only work with > Apple AA-cells. > Same as my Uniross batteries, they just load with the Uniross loader. 8( Raychem(?) once had sold rechargeable alkalines, and their charger worked only for them. The "secret" was in the design of the "button" at the + side of the cell, in combination with the hole in the charger for that "button"; subtle differences that made things look the same - but different enough to pervent contact if other cells were tried. |