The Duo LCD Battery Charger from Watson charges 1 or 2 batteries of various types via dedicated interchangeable plates, which are required and available separately. The Duo can even simultaneously charge 2 different batteries with different voltages.
It runs on 100-240VAC power, allowing for use all over the world. Charging time is between 2 and 6 hours, and the charger also features a USB 2.0 port for charging another device simultaneously.
The LCD screen provides a digital read-out of each battery's charge percentage--even when the charger is unplugged--via the test button. The Duo includes a power cord with a 2-prong US plug, as well as a 12VDC car charger that plugs into a cigarette lighter.
||100-240 VAC, 50 / 60 Hz
12 / 24 VDC, 2.0 A
||1.2-8.4 VDC, 2.0 A (max.)
USB 2.0 port: 5.0 VDC, 2.0 A (max.)
||USB 2.0 port for charging another device
||32 to 104°F (0 to 40°C)
||-4 to 140°F (-20 to 60°C)
||Charger: 4.9 x 4.5 x 1.75" (12.4 x 11.4 x 4.45 cm)
Cord length: 4.7' (1.4 m)
||7.7 oz (218 g)