Use this guide to replace the battery in your Google Pixel. With daily use, a typical battery will last around 18-24 months before losing significant capacity. If the device doesn't charge, won't turn on or turns off suddenly, replacing the battery may be a solution.
'''Warning''': Because of the strong adhesive securing the display, minimal clearance for inserting your tools, and high heat required, there's a good chance of accidentally damaging the display during this procedure.
'''Before disassembling your phone, discharge the battery below 25%.''' A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.
'''If your battery is swollen, do not heat your phone'''. If needed, you can use a dropper or syringe to inject isopropyl alcohol (90+%) around the edges of the back cover to weaken the adhesive. Swollen batteries can be very dangerous, so wear eye protection and exercise due caution, or take it to a professional if you're not sure how to proceed.