The samsung galaxy j2 ace has very poor battery life.the J2 Series of the samsung is not good and hence consumer are not satisfied with this.The battery life is very less., if you full charge your battery then only after 4 hours you need to connect your charger with the phone.so, you need to carry your charger everywhere with your phone.It’s very irritating to carry along with your mobile.one can’t travel in train with this phone.This causes great inconveniance for the people.so, this series of samsung is not good and effective in consumer point of view.The samsung galaxy j2 Ace battery life very much irritating.