The Energy Transfer Box - ETB 20 Technical Specification
The Answer to All your Mobile Device Power Needs

1. Nominal power of solar modules 2-2.2 W
2. Output power for operation of an external devices 1.2w / 2.5w / up to 4.0 watts
3. Output voltages range : 4...14v - 1.2w to 4.0w (depending on adapter cable)
4. Input voltage DC input socket 4.5...5.5 volts. Current max. 1.8 amp
5. Charging current, internal batteries: max 1 amp per battery or battery string
6. Closed-circuit current in stand-by mode: 0.8mA (with 2 AA batteries)
7. Voltage range mains adapter 90...270v AC
8. Ambient temperature range 0 to +45°C (charge, -20 +50° (discharge and storage), +10 to +30°C (recommended operating range)
9. Max rel. humidity: 95%
10. Safety class IP52
11. Case materials: PC-ABS, PMMA Santoprene
12. Dimension: 160 x 85 x 33
13. Weight: 295g excl. batteries

Optional Accessories

1. Additional double solar module with cable adapter for DC input
2. Rubber housing against shocks (standard on the ETB 30)
3. Various adapter cables and adaptor tips
4. Car 12v adapter for charging via the onboard vehicle power supply (12 Volts DC)
5. USB adapter for charging via a USB port (eg. of a PC)
6. Mini USB adapter for charging devices fitted with mini USB socket
7. Car socket Adaptor (12v female socket) for charging devices fitted with 12v car cigarette socket plug
8. AA to AAA adapter for the use of 2 or 4 AAA cells in the battery holder