If the drop in phone charging speed is due to an aged or damaged battery, there is nothing much you can do than to change the battery (or phone). But if you notice a drastic change in the charging speed, there are several things you can try to fix this slow charging issue.
Change the Charging cable
USB cables endure a lot of abuse, especially when people living in the same house use the same cord. They are dropped, bent, and stored in places with significant variations in temperature (like your car). So if your phone is charging slowly, your first step should be to try a different cord. If your phone charges at different speeds depending on the cord you use, you may want to purchase a newer, better quality cable. If you are still using the thin USB cable that comes with your old phone, change it. The newer USB cables are often thicker and can carry more power in it.
Change the Adapter
While you’re at it, try switching your adapter along with the cable. If you are still using the adapter that came with your last phone, it’s not working as well as the new one would. Newer adapters often have higher power output that can charge your phone faster.
Check the Power Rating
If you switch to another charging outlet and found that it is charging your phone slowly, it could be that the outlet doesn’t provide enough power output. There are also wall outlets with USB charging ports. Check out the power output of these wall USB outlets. Some of them only output 1A of current, which is insufficient to quick charge your phone. Newer phones (with bigger battery capacity) usually require 2 – 3A of current for a fast charge. The solution for this is simple. Simply move the adapter to a different outlet and see if the charging speed increases.
Charging Port issues
The port can also cause slow charging on your phone. Use a flashlight and look inside the port on your phone, using a magnifier, if possible. Look for small particles that may be trapped inside. These particles prevent a good connection and slowing down the charging process. If you see something in there, use a wooden toothpick or a small soft brush to remove the obstruction.
Close Background apps
If your phone is charging slowly, it probably has trouble keeping a charge during the day too. Extra apps running in the background can be causing this problem. Both Android and iOS have settings you can check to see which apps may be draining the battery. Open your Settings menu and select Battery to see which apps you can close.
Damaged battery
You could remove your battery and inspect it to see if there was damage. Recently, though, manufacturers have switched over to non-removable batteries you can’t see. Check for damage by inspecting the back of your smartphone. Look for a slight bulge over the battery. If your phone charge drops rapidly from full charge to half of its charging life, it could also indicate a damaged battery.
Don’t use your phone while charging
Although it’s tempting, don’t use your phone while it’s charging. Instead, leave it alone while it’s on the charger. Even better, consider turning it off. It will charge more quickly because there are no drains on the power. If your phone is charging slowly, I hope one of these solutions helps speed it up. You won’t be able to get back to the lightning-quick charging you had when you pulled the phone out of the box, but you may be able to make it easier to take your phone and not worry about it dying quickly.
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