??? Charges Li-Ion batteries in 4-8 hours ??? Built-in USB port for charging handheld devices including cell phones, MP3 players, smartphones, PDAs and games ??? Ideal for travel: ultra-portable, easy to pack in luggage or camera bag ??? Worldwide compatibility with100-240V AC input ??? Convenient fold-down/flip-up AC plug GENERAL SPECIFICATIONS: ??? Charger 3.6V-8.4V Li-Ion batteries ??? Input: 1