Designed with the never-slow-down, everyday user in mind, Brunton’s Heavy Metal™ 5500 has the sleek, urban aesthetics of the Metal™ 4400, but with greater capacity for even more on-the-go energy. Robust, lightweight and always there when you need it, the Heavy Metal™ 5500 is perfect for the truly power hungry.

• Lithium polymer energy – High-grade Lithium polymer cells charge faster and last longer; no memory and minimal discharge; 1000 cycles at 80% capacity 
• Charge  Time – USB - 6 hours, ac/usb - 6 hours, Solaris® 4 USB - 7 to 8 hours
• Charging Capacity- 5x smart phone charges
• LITHIUM POLYMER BATTERY –  5500mAh
• POWER OUTPUT – 2.1 amp & 1 amp 
• SPECS –  4.5x3x0.6", 8.7oz 
• OUTPUT – Dual output,  USB 2.0 Compatible & Micro USB
• INPUT - Integrated USB