HTC One M9 Backup Batteries
Just Mobile Gum
for HTC One M9Just Mobile Gum is the ultra-compact, super-stylish backup battery for smartphones and USB devices.
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43% TYLT POWERPLANT 5200mAh Portable Battery Pack Micro-USB
for HTC One M9POWERPLANT 5200mAh is a robust, portable energy charger with high output capacity, designed for people who expect high-output charging in a small design.
You Save $30.04
Seidio 8000mAh Charging Vault
for HTC One M9he Charging Vault provides you convenience for your on-the-go lifestyle to keep you working twice as long and twice as hard. With a battery capacity of 8,000 mAh, the Charging Vault will keep your devices running throughout the day and night.
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Random Order 9000mAh Rugged Portable Power Bank
for HTC One M9You've seen backup batteries before, but not any that can take a beating like this one!
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CasePower Urban 4000mAh with Micro-USB
for HTC One M9Urban 4000mAh with Micro-USB takes portable power to a whole new level with its thin and lightweight design.
You Save $8.04