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Thread: Battery Charger

  1. #1
    Join Date
    Apr 2008

    Default Battery Charger

    Hi guys I have no idea whether this thread has been started before(cos top tool search is down) but wanted to ask which battery charger is good? I would prefer the non quick charge ones as I have heard many disadvantages to it. I have a very old one at home at least 5 years old. Not sure whether it is safe to use with other brand batteries. The one i have is a GP charger, but if i say i want to charge eneloop batteries is that recommended? Thanks for your help

  2. #2
    Senior Member Override2Zion's Avatar
    Join Date
    Jan 2007
    Singapore/Bangkok Thailand

    Default Re: Battery Charger

    Quick chargers basically charge your batteries at higher current, slow chargers are the opposite. Main disadvantage of quick charging that i can think of is the heat generated during charging process, this could degrade the chemical properties of the battery. However, this is all dependent on your charger's charging profile, good chargers are embedded with multi-step charging profiles to ensure a healthy charging process.

    The way your fast/slow chargers determine if your batteries are fully charged are the same. When charging begins, the voltage of the NiMH/NiCd batteries climbs. At a point of time near to full charge, the batteries will approach a peak in the voltage reading and start to dip slowly to a steady value indicating a full charge. That is when your charger switches to a "trickle charge" mode (maintaining the charge in battery with minimal charging current).

    If the charger is designed for use with NiMH batteries, I would say you're pretty safe to use it with the Eneloop batteries. But again, try at your own risk, there might be exceptions though since not all chargers are designed the same.
    Last edited by Override2Zion; 4th September 2008 at 02:46 PM.
    Nikon D200/D700/D800 User :)


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