We briefly reviewed battery chargers in a previous post “The Best Rechargeable AA Batteries“. But let’s take a look at the best “Universal Battery Chargers”. These are chargers that can handle AAA, AA, C, D sized cells, and well as 9V cells.
This device is a night vision scope, but it doesn’t require any batteries. Instead, it’s has a lever-activated power supply, so you can generate your own power ad hoc. You’ll can see in the night without fear of an energy failture. It is priced around $200. See Camping Station or other vendors.
This is a nice children’s headlamp for about $18. We like it because it uses three bright, energy-efficient LEDs. So the batteries will last hundreds of hours. It has three settings: high, low and flash. Available at Amazon. See also this similar headlamp from Amazon.
One of the best charger/battery series available. The batteries are rated at 2400mAh – one of the most powerful out there. Quick charges in about an hour, then switches to trickle charge. Comes with a 12V adaptor. Purchase from: Amazon ($29.88)