Centenex Electronics CHUNIVERSALMINI3-USB standard battery charger

Compact universal charger for small lithium cells

This charger handles the small 3.7 V packs found in cameras, camcorders, PDAs and phones. Adjustable contacts grip any cell rated between 2.8 V and 5.9 V with contacts spaced less than 1 1/2 inches apart. It suits travellers who want one lightweight unit instead of carrying several dedicated chargers. Buyers whose batteries exceed 2500 mAh or sit outside the stated voltage window need a different solution.

Folding prongs and side USB port for daily carry

The AC prongs fold flat into the casing so the unit slips into a glove box or purse without snagging. A USB port on the side lets you run a cable to charge another device while the battery sits in the adjustable cradle. Polarity must be set manually each time, so users who prefer a keyed, drop-in dock will find this workflow less convenient.

Low-power operation with no active cooling

The charger draws only the modest current needed for cells up to 4.2 V and 2500 mAh, so it runs cool and silent from a wall outlet. No fan or heatsink is present, and the folded prongs add no protrusions that could block adjacent sockets. Continuous high-rate charging of larger packs is not supported by the voltage and capacity limits.