A:Answer If you decide to purchase the Motorola Moto E4, you WILL NOT be disappointed! Currently, I am using my Moto E4 to answer your question. The Moto E4's Battery Life is GREAT! I am a Power User. E-Bay; Facebook; & YouTube are constantly being used on my device. At the end of the day, I still have power remaining. If you are not a Power User, the Moto E4's Battery Life will easily get you through an entire day. With the Moto E4, I have noticed some Lag. However, Lag is not a significant issue. It doesn't bother me.