How to fix "cell standy" battery drain on a tablet?

[Adrian Abaja]

Our ISP recently gave us a free tablet as a gift for being a valuable costumer or something, but the tablet has horrible battery life. So i checked the battery usage and cell standby was at the top yet the tablet itself has no sim support.
Switchin on airplane mode doesn't help either.

 

[B. Diddy]

Although that is concerning, it would still be helpful to see more detailed battery stats after most of a charge has been used. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:


1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).


You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.