*What is called extra power charger, extra power charger is a portable mobile phone charger with lithium polymer battery. Follow people are keen to every kind of digital devices, like Apple products, iphone, ipad, PSP, MP3, camera, and so on. there will be useful for you to keep some extra power charger knowledge in your mind. *
*I share some skills for how to choose extra power charger (http://www.sinoele.com)rightly. *
*1. **Firstly, the thinner extra power charger the better. *
*2. It is necessary to distinguish the battery cell of extra power charger. *
*2. **The extra power charger capacity*
*For smart phone mobile phone, 5000mAh capacity is enough to charge mobile phone by two times, it is worth noting that you do not aspire after high capacity when you buy extra power charger, because the more high capacity, the extra power charger need more strict technology requirement. *
*3. **The conversion efficiency of extra power charger*
*The general conversion efficiency of extra power charger is 85% more or less, the better one can reach 86-90%. *
*The Last point is that choose manufacture with good credit and good after sale service. Sinoele company provide different capacity extra power charger, of course we pay much attention for these. So please assure for these points.*