Duracell offers a high speed battery charger (and sells the rechargeable batteries - AA & AAA). It will charge 4 batteries in about 15 minutes or so (they get hot so there's a fan on the charger). I got mine for around $20 dollars a few years ago at Best Buy. The whole setup weighs about 8 oz. I think. If you don't have a lot of other electronics this might work in place of buying disposable batteries.