Replaced my iPhone 6 battery, part two

UPS (via Next Day Air) delivered the two sets of adhesive strips from iFixit. I’m glad it arrived in the morning. ☀️🛬

Before I started my second attempt, I read the instructions and watched the videos again. 🍿

Read: Part one

iFixit included three words on their box: “You got this.”

They were right. I worked in silence for less than an hour, all went well, and the battery now feels secure. 🔋

I also swapped the Pentalobe screws with Phillips screws from the included Liberation Kit (available with their iPhone 6 Replacement Battery Fix Kit).

I’m sort of ignoring the amount spent for a few reasons. 💸

  • Privacy. I didn’t want to leave my device with a third party for several hours/days.
  • I didn’t have a working backup iPhone to hold me over.
  • I’m saving money by not upgrading to a newer iPhone, especially since my current one is fine.
  • I can be confident to do the same for Amy’s iPhone 6…when she’s ready. 💪🏾
  • Maybe I can do this — and replace the cracked screen (Amy did it) — on my previous iPhone 5s.
  • Fun. I haven’t tinkered like this since I built PCs years ago. See image of Grandpa Simpson yelling at cloud. I’m…not going to link to it. I think you know it. 😉

Questions? 🤓

Replaced my iPhone 6 battery, part one

The good

I disassembled, replaced the battery, and reassembled my iPhone. The instructions from iFixit were solid.

My phone powered up, I don’t see display issues, and Touch ID still works. Feels quicker, too. 💥

CPU benchmarks

These two benchmarks — from Geekbench 4 — correspond to the old and new batteries, respectively. Higher is better.

  • Single-core went from 816 to 1547. Increase (↑) of 89.583%.
  • Multi-core went from 1329 to 2643. Increase (↑) of 98.871%.

With my iPhone not in Low Power Mode when I ran the test, is the large discrepancy due to:

  • The old battery level being at 4%, and
  • The new battery level at around 40%?

I’m…not sure. The battery charge needed to be very low1 before I dug into my iPhone.

With the new battery level at 7%, I ran another CPU benchmark.

The result? Single- and multi-core benchmarks were 1548 and 2674, respectively, which means it wasn’t a fluke. 🙌🏽

Have you seen a comparison posted elsewhere? Let me know in the comments!

The bad

With the new battery, I applied the adhesive on the wrong side, and I initially didn’t order an extra set. 🤦🏾‍♂️

The ugly

To be safe, I ordered two sets of iPhone 6/6s/7 battery adhesive strips with the most expensive shipping. The estimated arrival date is Friday.

Until then, I need to handle my phone with extra care. I definitely won’t carry my phone in my pocket. 😱

Reason: With the bit of extra space not yet taken by adhesive, I need to prevent damage to the internal bits.

The silver lining

I work from home, and don’t need to venture out over the next couple of days. I can still use Authenticator for two-factor authentication.2

Ultimately, Friday isn’t that far off. I’ll do my best to keep that in mind. 😬

Update — Read part two!



  1. For safety, the instructions state the battery level needs to discharged below 25%. “A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.” 😱 
  2. Yes, I have backup codes. 

Android battery life continued

I’ve given up on extending my battery life by means of software, such as JuiceDefender. Maybe I need more patience to configure it, but sometimes, I just want it to work. From what I’ve been reading across various blogs and websites so far, the iPhone holds that title.

I’m going to buy an extended battery. I’ll be alright with the bulk.

When I’m away from home[1. School, primarily], my usage consists of:

After six hours, I’d find my battery around 20-25%. Boo. (Yes, I adjust my screen brightness as low as I can tolerate and usually keep all GPS-related features disabled. WiFi is usually disabled.)

On a few work days, when I forced myself to use my computer for Google Voice and TweetDeck, I didn’t touch my phone and it barely got to 85% after eight hours.

Specific Android app-related posts to come. Sit tight.

Android apps I use, plus a few battery tips

Overall, I’m very happy with the experience using my HTC Droid Incredible. I’ve had it for about ten days.

After a couple of days with it, I root my phone with unrevoked3. (Ambitious, huh? I guess Wil Wheaton recently did the same with his HTC Droid Incredible. Wheaton!!!)

Side note: Why did I want to root my phone? To uninstall apps pre-installed by Verizon Wireless that I wouldn’t use. (Crapware.)

The following is a list of Android apps I’ve installed and used so far:

  • Android System Info
  • Barcode Scanner – When checking prices at the Cal Poly Pomona bookstore, this saved me $162.57 (Breakdown: $62.11 immediately + $100.46 Buy Back, which I’ll do at the end of the quarter.)
  • Chrome to Phone – Opens links from Google Chrome on my desktop to my phone.
  • Clockr – A simple clock widget that displays text, not numbers.
  • Dropbox – Along with Epistle (see the next item), this lets me save photos to any Dropbox folder, keeping my phone storage clear.
  • Epistle – Synchronizes text files to/from a specified folder in your Dropbox account.
  • Gmote – Control playback of videos and music, browse your file system, or use phone as a keyboard or mouse.
  • K-9 Mail – Robust email client, better than the built-in app. I use IMAP with my email server. (See update below)
  • – View your balances and budget. Unfortunately, it doesn’t support adding cash transactions.
  • Pandora [Radio] – I haven’t tried Slacker Radio yet.
  • [Google] Reader – The formatting looks good. I prefer this over visiting the website on my phone.
  • [Google] Shopper
  • Silent Boot – Silences the “Droid” start up sound when powering your phone on. Stay discreet if you’re in a quiet room and need to restart your phone.
  • Silent Sleep – Specify when your phone should be silent.
  • Swype (Beta) – If you’re sick of tapping an OSK, you’ll love this app. I was comfortable using it after a couple days. I can write fairly quickly.
  • Titanium Backup
  • TLDR – Saves articles for later reading directly to your Instapaper account.
  • TweetDeck – More powerful than the official Twitter app.
  • Uninstaller
  • Google Voice – I heart this.
  • WordPress – In case I want to draft/publish a blog post from my phone, this works very well.

After I root my phone, I uninstalled the following pre-installed apps:

  • City ID
  • Footprints
  • Skype – I might reinstall this if I needed. At the moment, I wouldn’t want to use it while I’m out and about.
  • Twitter
  • Facebook

Battery life and task killers

From what I’ve read so far, it’s only bad to have rampant apps installed if they constantly use your CPU in the background. The Android memory system is pretty solid.

On Friday, I used my phone pretty heavily between classes. (TweetDeck, texting several friends with Google Voice, and Pandora.) It was unplugged between 7:00 AM and 1:45 PM. When I got home, my battery was down to 25%.

I might have to try the bumb charge method outlined in this HTC forum thread, plus remove the calendar widget. I technically don’t need it.

Actually, I should try one thing before trying another. That way, I know which factor was relevant. For now, the calendar widget is gone.

Otherwise, I’ll upgrade to the Seidio Innocell 3500 mAh Extended Life Battery shortly.

Note to self: With Auto-sync disabled and Background data enabled (Settings > Accounts & Sync), I still got notified of a text message through Google Voice.

Update 2011-01-09 22:10 — TweetDeck also updates with Auto-sync disabled. What apps are dependent on Auto-sync? (I’ll search for the answer eventually if nobody leaves a comment. Hehe.)

Update 2011-01-10

  • 06:15 — After charging all night, powered off phone, unplugged, then replugged the power cable. The orange light appeared, meaning the battery resumed charging.
  • 06:45 — Green light from battery charging.
  • 09:10 — Listening to Pandora Radio, checking TweetDeck, downloaded a few PDF files, and chatted with a couple friends through Google Voice (27 messages). My phone was on vibrate the whole time.
  • 10:50 — Battery level at 40%
  • 11:25 — While eating lunch and reading, my battery level went down to 28%. I checked my K-9 Mail settings and disabled background sync. (Settings > Global > Network)
  • 11:29 — Stopping the K-9 Mail service. Battery level at 27%
  • 11:42 — In class; battery level at 26 %
  • 12:50 — Battery level at 26%

For now, I’ve (sadly) uninstalled K-9 Mail and will resume using the built-in Mail app. I’ll resume my testing and publish a new post at the end of the week (so I don’t keep adding “clutter” to this).