Huawei Nexus 6P Battery Upgrade

I’ve had my Huawei Nexus 6P for about two years now. The combination of a great camera, an excellent screen, good performance and decent battery life has made this my best smartphone ever.

However, a couple of months ago something happened as the battery capacity appeared to have collapsed dramatically. Sometimes the phone would shut down only 5 hours after I had disconnected it from the AC charger when I left home, starting off supposedly fully charged! I had to always carry a USB battery and cable with me to not risk losing the use of my phone in the middle of the day.

Attempts to recalibrate the capacity indicator helped only insofar as the phone would shut down at 14% charge instead of say 55% charge, so there was slightly more warning, but the number of hours was still too short. This actually seems to be a common problem with the Nexus 6P, which otherwise is still a great phone.

It’s not uncommon for Li-ion batteries to significantly lose capacity after about about three years, but if it happens after less than two years as in my case, that’s not very good. Fortunately, replacement batteries are available and any competent phone repair shop will be happy to do the necessary surgery to replace a battery that is on its way out. Unfortunately the days when you could simply pop open the phone case without any tools and swap the battery yourself are long gone. This is a trend started by Apple and almost every other phone maker has since followed suit. I think it’s meant to get people to buy a new phone sooner, which is good for Apple and its competitors, but bad for consumers and for the planet.

There are Youtube videos that will show you how you how to open the Nexus 6P case and disassemble the phone to swap the battery. This involves the use of a hairdryer or heat gun to soften the glue that holds it all together as well as a plastic card and a small screw driver. As I did not feel adventurous enough to attempt this myself, I contacted several phone repair shops here in Tokyo. Repair King Japan replied. Though they they didn’t have the Nexus 6P battery in stock they were happy to order one for me. Once they got it, I dropped the phone off and two hours later I could have it back with a new battery. So far it’s looking good: It’s been 40 hours since the last full charge (with battery saver mode inactive) and it’s still showing 64% with about 3 days of power left 🙂

UPDATE: At 72 hours, it still had 23% charge left. At that point I connected it to a charger.

Hopefully with the new battery my Nexus 6P will be a great phone again for a few more years!

4 thoughts on “Huawei Nexus 6P Battery Upgrade

  1. 40 hours since charging and 3 days of power left?! Where can I order this battery? My 6P doesn’t last 5 hours on a charge.

  2. I don’t know exactly what model the shop installed as a replacement part, but just about any model that’s compatible (size-wise and capacity-wise) will give you better results than what you’re getting now. There are several models available on Amazon, but the surgery needed to install one of those is not for people inexperienced in phone or laptop repair, which is why I had a shop do it.

    The shop where I had the upgrade done said they get a fair number of Nexus 6P customers asking for battery replacements. When I googled the subject I came across a lot of threads with people complaining how much battery life had shortened for them. This leads me to believe there is a quality issue with the original battery used in the device. Two years is too short to lose that much capacity from a Li-ion battery.

  3. No doubt there’s a problem with the 6P, and it seems like nobody has been able to source an oem replacement. I’ll keep searching the forums for a good option

  4. A search for “nexus 6p battery replacement” on Amazon comes up with a couple of results have reasonable looking ratings from confirmed buyers.

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