Z3 compact

[Par72]

My phone is coming up to 3 years old, lately it's running flat really quick, like I take it off charge at 8.00 and by 1.00 it's virtually used up so I rechargethen by early evening its flat again.. I have cleared

Off most of my apps but no change sometimes it runs out within a few hours...  Any suggestions, cannot really afford a new phone . Thanks 

[Uliwooly]

@Par72

You need to replace the battery, either through your Local support or DIY. 

[Par72]

It's a sealed unit isn't, didn't think you could change the battery???