Battery Issues

[A233m]

Hi, I got my phone in like Feb this year and the battery's been very shite, having to charge multiple times per day sometimes. Is there a way to to fix or increase battery life. Tbh I've not been great befire, letting it charge at 100 for some time and not had battery protection measures. I have them now and max charge is 90 but what else could I do, I'm tempted to buy a new battery but would it be worth it as on contract with O2. Any tips/help greatly apprecitaed. 

[Tourbillon De La Vie]

What's screen on time. Post a screenshot from the battery usage

[keith30]

Did you buy the phone from a network carrier or is a refurbished device off Ebay if so that may be the problem if the battery is old.

[Piper123 · Accepted solution]

First, turn off Auto Blocker then follow these instructions EXACTLY as written

Using the Samsung Phone App (not the Google one)

Dial *#9900# then scroll down to battery stats reset. Click then restart your phone.

Turn Auto Blocker back on

Restart device

Wait 14 days for battery optimisation to complete.

Credits to @Moiramon and @lminvti for this information from previous threads