Hello. It is true that data connection is power intensive but a notable battery drain/discharge may mean trouble. If the battery goes down notably faster within a short period of time, then you may be have a weak or defect battery. If the Mobicel Cherry tablet is not more than a year old, then you can try to let inform your retailer about this in hope for in-warranty failure free service. If things are not that bad on the other hand, then also remember to reduce brightness to at least 20% or less than, turn off Bluetooth and WiFi to save battery.