What to Do With a Swollen iPhone Battery？
Of the common signs your battery is failing, a swollen battery is the most urgent and dangerous. Battery swelling happens due to a little thing called outgassing, which occurs when a battery gets overcharged, damaged, or simply old. Under those circumstances, the chemical reaction that keeps your battery running breaks down and, just like the name suggests, outputs gas. The battery casing is built to contain that nasty gas—so, inevitably, it bloats up.
How to tell if your battery is swollen？
From the outside, a swollen battery can manifest as a hazy white screen (due to pressure on the display). You might also notice a separation between the screen and the phone body, or “squishiness” of the screen (no separation between the phone and the screen, but your screen moves a bit when you pinch the edges of your phone). You can also detect a swollen battery by smelling your phone—not by holding it right up to your face like a flower (the toxic fumes are way worse than allergies, trust us), but by using a wafting motion from a short distance away. And if you want to triple-super-check, then you can also open your phone up and look to see if the battery’s wrapping looks loose or wrinkly, or if it looks round and is rising out of its recess.
Warning: It’s important to know that your battery is at risk of catching fire if it’s already reached a swollen state. Do not try to replace the battery if your device is unusually hot, smells really bad, or is already on fire. It can wait! If this all sounds a little too scary, and you’re not feeling totally comfy with the repair, that’s okay too—replacing a swollen battery can be intimidating. Take a deep breath, power down your phone, and then put it in a fireproof container and take it to a repair professional.
Before you begin
If your bravery has prevailed, and you want to do the replacement yourself—right on! Here are a few things you should do before the repair to ensure your safety: Make sure your battery’s charge is as low as possible by letting it drain to near zero percent—this greatly reduces the risk of a fire. Also, be sure to maximize the ventilation in the area where you’re doing the repair, to reduce exposure to those aforementioned fumes. And, your chemistry teacher is still right—wear eye protection (ideally full safety goggles). It’s also a good idea to wear protective gloves to prevent skin contact with the chemicals inside your battery.
Be sure to work on a non-flammable surface. In case a fire does break out, it’s a good idea to have a bucket of sand at the ready so you can douse it. You can also do the repair outside if it’s cool and dry, but if you’re inside, make sure to have an exit plan to outside in case your battery starts smoking or catches fire.
Wherever you repair, and whatever the temptation, do not expose the battery to water or moisture—the lithium in the battery can react with the water and cause more problems than you started with.
I’m going to reiterate that to make sure it really sinks in: DO NOT expose the battery to water or moisture—because the lithium will react with the water, potentially causing a fire.
How to remove a swollen battery (safely)？
Okay, now you can finally start to remove the battery. For the most part, you can just follow the repair guide for your specific device. We also recommend using a solvent adhesive remover, high-concentration isopropyl alcohol, or acetone. The solvent will reduce the need to pry against or flex the battery. But—and this is a big but—solvents are flammable, so use them as sparingly as possible, and acetone may cause damage to plastic parts. Only use dull, plastic tools to avoid puncturing the battery—punctures can release its toxic contents or start a flaming reaction. And, if things get a little smoky, take the device outside or place it in your fireproof compartment until it calms down. And then take a deep breath (away from your device and its fumes)—and try again.
If all the replacement sounds a lot of work for you, fine a phone repair store like us is also an option.