30-minute NiMH chargers

Discussion in 'Digital Photography' started by Mike S., Oct 8, 2003.

  1. Mike S.

    Mike S. Guest

    Since nobody seems to have posted on these ...

    Best Buy now has two brands on the racks. These charge standard batteries,
    not special design cells like the controller-in-an-AA-cell that the
    Rayovac 15-minute charger requires.

    One is from Energizer. It's an odd square shape, with the battery wells
    along the edges and vents in between. It charges only AA NiMH cells. From
    the design one would surmise it might have a fan, but it doesn't. Pass.

    The Duracell design is much more interesting. The packaging is so
    unrevealing that you can tell almost nothing about the hardware until you
    actually buy one and open it. It does AA or AAA NiMH cells, but you can't
    mix as a lever brings the anode contacts closer to accommodate AAA cells.
    The batteries sit in a well that has vents on the bottom, and a hefty fan
    underneath that draws quite a bit of air over and around the cells.

    Both are about $35 (the Duracell outfit costs more but there's a rebate)
    with 4 AA cells bundled. Can't tell if either monitors temperature (the
    Energizer 1-hour charger has thermistors attached to each cathod spring
    terminal, so who knows). The Duracell charger's fan runs all the time it's
    charging; it is not temperature-driven.

    I've tried a bunch of different brands on healthy AA cells on the Duracell
    charger, and they barely get warm.
    Mike S., Oct 8, 2003
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