Smartphones are an essential part of everyday life, with bicycle ride being no exception. Recently, cyclists use their own smartphones for GPS tracking, listening to music, getting calls and so on while riding bicycles. However, the limited battery life of smartphones has always been the biggest concern for reliable outdoor use.
Worry no more. Battery Stem will keep you smart and connected all day long without worrying about the battery life. Battery Stem features an integrated 10,000mAh battery pack, guaranteeing 15 hours use depending on your device. The power battery is designed specifically for outdoor use, tested to endure rain and dust with protection from overheating, overcharging and overvoltage for your safe riding.
It is also the first battery-integrated bicycle stem that is made of carbon fiber. Carbon fiber has been used for high performance bicycles for its advantage of high stiffness and light weight. Carbon fiber stem will protect the super battery from external shock.
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