Battery Life
The Fire E is powered by a removable 1700 mAh Li-Ion battery. Although small by today's standards, the battery was adequate for basic use, offering up to 450 hours of standby time on 2G and up to 400 hours on 3G networks. Talk time varied from up to 7 hours on 2G to 4 hours on 3G, while music playback could last up to 25 hours. The removable nature of the battery was a convenient feature for users who preferred to carry spares or replace the battery easily.