iWap includes a removable 3,000mAh high capacity Li-ion battery to provide maximum DC 5V, 1A power for USB output. The battery can be removed, which allows you to use the originally supplied battery or use your own Li-ion batteries that are no longer in use. This feature helps expand the power sources and reduces waste of unused batteries. It also saves your money. 

• iWap unique auto detect battery polarity feature combines with universal charging station, saving you from the trouble of having to carry multiple chargers for different 3C devices. When plugged in AC power source, it also provides USB power source for your other devices. iWap charger is mobile, universal and versatile.
• Compared to other mobile power sources, users are limited by the power provided by the built-in battery. iWap removal battery design allows users to change batteries, thus expanding useful life of mobile power chargers and maximizing the useful life of your batteries that are no longer in use.
• iWap designs with two additional connectors use magnets for connection and conducting electricity. Its function can be expanded to being used as an LED light and charger, and providing power for heating pads or fans. The dual voltage output of DC3.7V and 5V makes iWap versatile for many applications.
• iWap can rejuvenate/revive batteries that are over discharged and become dormant. This feature allows you to prolong the life of dormant dead batteries. iWap not only saves your money, but also helps reduce batteries that are disposed of in landfills.
• Input voltage: micro USB DC 5V.
• Battery tray charging output: 4.25V, 600mA (max).
• USB output: DC 5V, 1,000mA (max).
• Removable lithium-ion battery capacity: 3.7V, 3,000mAh (optional).
• Applicable batteries: 3.6 V/3.7V lithium-ion batteries
• Removable 3.7V, 3,000mAh battery charging time: 5-6 hours.
• Cell phone charging: 1.5-2 hours (depend on battery capacity).
• Material: plastics (ABS, PC).
• Weight: 70g (main unit only), 140g (removable battery included).