Nikon D3000 User Manual page 105

Ratedinput AC 100-240 V (50/60 Hz)
Ratedoutput DC 8.4 V/900 mA
Supported batteries Nikon EN-EL9a or EN-EL9 rechargeable Li-ion battery
(EN-ELg) when battery is fully discharged
Operating temperature 0-40 °C (+32-104 °F)
(WxHxD) Approx. 82.5 x 28 x 65 mm (3.2 x 1.1 x 2.6 in.)
length of cord Approx. 1800 mm (5 ft. 11 in.)
Weight Approx. 80 g (2.8 oz.), excluding power cable
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