GP Batteries Portable PowerBank FN05M Lithium-Ion (Li-Ion) 5200mAh Silver power bank

Portable PowerBank FN05M, 5200 mAh, Silver Safer
Over-temperature cut-off during PowerBank recharging
Complies with UN38.3 air transport safety standard

Faster
2.1A charging speed

Longer Battery Life
Under-temperature protection to prolong battery life
Over-charging and discharging protection
Overload protection

More Durable
Short circuit protection
Loopback protection - auto cut-off when cable is plugged into input/output simultaneously

Easier to Use
Intelligent automatic power modulation switch for various input voltage, tailor-made for travelling use
Compatible with iOS and Android smartphones, tablet PCs and many other USB devices

Smarter Design
Matt aluminium casing
Stabilizing design
Smart LED indication