Panasonic Battery Charger
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Can I use my BQ-390 battery charger to charge 3000 mAh batteries even if it came with 2100mAh batteries?
I bought a Panasonic BQ-390 battery charger years ago. The batteries that came with it are 2100 mAh but they no longer hold their charge. I bought some 3000mAh batteries now and I was wondering if I can still use the same charger? Or will my old charger "think" that the 3000 mAh batteries are 2100 mAh?
All NiMH chargers use either battery temperature or voltage rise to determine end-of-charge. So, they can be used on any capacity battery, even later models of higher capacity than existed when the charger was made.
The higher-cap batteries will take longer to charge, that's all.
btw the very highest capacity batteries are often a little troublesome. The ratings are often overstated. Manufacturers have even been known to make these batteries a little bit larger than standard in order to pack the "stuff" in for the extra capacity. But if the new batteries work for you, don't worry about it.
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