Want to preserve your battery? Here’s a routine to stop your Samsung phone’s charging at 90%

Limiting your battery life to a max charge of 90% can actually buy you a few extra years with your battery.

Want to preserve your battery? Here’s a routine to stop your Samsung phone’s charging at 90%
Samsung Galaxy S24 Ultra vs Samsung Galaxy S23 Ultra backs
Credit: Robert Triggs / Android Authority
  • Limiting your battery life to 90% can actually help it last longer, though you’ll obviously get less battery life than normal but for many this may be more than adequate.
  • Charging 20% to 90% is a lot less hard on a phone than charging from 0 to 100%.
  • You’ll want to set up two easy routines to make it so your phone stops charging when it reaches 90%.

Many of the latest Samsung devices support seven years of OS and security updates, which means the phones will still be safe to use and feature all the best new software improvements for a long time to come. There’s just one issue: there’s a good chance your battery won’t make it that long before you run into serious degradation. Is there anything you can do to slow this process down? Actually yes, and there’s a simple routine to help you do it, as first suggested on Reddit.

What we want to do is limit your phone from charging past 90%, or 80% (or even lower) if you prefer. Why does this help?  Simply put, charging a battery from zero to 100 percent is pretty hard on a phone. There are many who recommend never letting your phone drop below about 20% and never charging it more than 80 to 90%, such as sources like Battery University. In fact, charging your phone multiple times from 20 to 80% is just as detrimental to battery life as charging from zero to 100 once.