The built-in rechargable Li-Ion AccuPack on most of the portable AudioPressBox devices allows you complete freedom from AC. What is more when the Li-Ion AccuPack is being recharged it works also as a reduntant power supply.

When the charging cable is unplugged, the device automatically switches to the Li-Ion AccuPack with no down time.

Features of rechargable Li-Ion AccuPack:
– No memory effect
– 8 – 16 hours of operation at full capacity depending on device type
– Fast charging
– Ability to recharge the Li-Ion AccuPack from your car while driving to the next event