The three versions

KBC-E1S 

KBC-L2S 

KBC-L3S 

2 pcs eneloop AA batteries

2 Lithium-ion batteries

1 Lithium-ion  battery

USB-Charger

USB-Charger + AC connector

USB-Charger

1 x Output USB

2 x Output USB

1 x Output USB

ready to use

particularly powerful

high capacity

ultra light: 55g

AC connector reduces

small + handy: 39x70x22 mm