When you are very urgent to charge your phone, but no electricity and your often use power bank is forgot to charge in this emergency time, or in the wild your power bank is out of power, how to do in these situations? Don’t worry, it can be help if you carry a disposable one time emergency charger in these situations. This type of power bank is generally designed to small, compact and portable, it will be no problem even you put it into wallet. It is quite practical for the people who are often running in the outdoors. Ultrable’s disposable thin batteries is thin design, high energy density, low self discharge rate and long storage life, which can make one time emergency charger smaller, more compact and maintain power in long-term storage. It is particularly suitable for use as the battery of your one time emergency charger.