TechMate Power Bank 30, 000 MAH for Laptop and Mobile Devices with 10 connectors for Laptop and 6 connectors for Mobile Phone & Tablets Features1 2Wide Compatibility.2 Very Smart and Ultraportable.3 Choice of different output voltage helps in charging almost all Notebook Computers and other Electronic Products.4 High Tech MCU power management with led display, you can check the battery capacity and status easily which reduces the battery consumption to the lowest.5 With several different types of connectors supplied, Almost all laptop brands are covered.6 You can use the adaptor for charging power bank and laptop at the same time, no need of laptop adaptor.7 To Charge Mobile Phone (Apple, Samsung, HTC, Blackberry.), iPad, PSP, MP3MP4, DV Camera, Tablet PC, etc.8 TechMate Portable Battery has the function of displaying power, you can know about the rest power percentage from 20%, 40%, 60%, 80%, 100% or no power from the LED indication.9 TechMate Portable Battery uses brand-new Top A batteries of LG 646480.10 TechMate Portable Battery uses Dual MOSFET full-side protecting circuit to ensure the charging safety.