

🔋 Power up your iPhone 11 PRO like a boss—never settle for less battery life again!
The Luuzkla 18800mAh battery is a high-capacity, zero-cycle replacement designed exclusively for iPhone 11 PRO models. It triples your phone’s battery life compared to the original, features premium Grade A+ cells certified for safety, and includes a full professional tool kit for easy installation. Backed by a 24-month warranty, it’s the ultimate upgrade for professionals who demand reliability and longevity from their devices.
| ASIN | B0F9WLZ5MF |
| Best Sellers Rank | #4,195 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #5 in Cell Phone Replacement Batteries |
| Customer Reviews | 3.8 3.8 out of 5 stars (466) |
| Date First Available | May 26, 2025 |
| Item Weight | 4.6 ounces |
| Item model number | 11Pro |
| Manufacturer | Luuzkla |
| Package Dimensions | 7.2 x 4.37 x 0.79 inches |
C**.
Brought New Life Back to My Favorite Phone, No More Battery Throttling, Perfect Replacement!
This battery replacement was perfect for my Pixel 6a and exactly what I needed to bring it back to life. My phone was affected by the battery issue and post-update throttling, and I was charging multiple times a day before replacing it. The kit includes everything needed to do the job, tools, battery and connector that fits securely, and even a pre-cut adhesive template for resealing the screen, which made reassembly surprisingly easy. After securing it overnight with some rubber bands to apply even pressure, the phone screen is just as flush and solid as it was originally. While I can’t verify the exact mAh capacity, the battery life is dramatically improved and even better than it was before the throttling updates, with no system warnings or restrictions. After a few charge cycles, performance evened out nicely, and there’s been no overheating or swelling so far. There aren’t very detailed instructions, but with the included tools and a quick YouTube search, the process is very manageable. All in all, this is a great value and a solid solution if you want to restore your Pixel 6a without spending a fortune, highly recommended!
S**Y
Works perfectly for my old Note 20 ultra
Works fine with my 2020 Note 20 Ultra. No msg. of non-Samsung battery after 2 wks of use. Holds and charges well, tho, questionable 9900mAh, think more closer to 4500mAh. A few words of caution of the installation process: didn't find double-sided tape with the package, had to use my own. Also, you will need this: https://www.amazon.com/dp/B0CRDG1XZ2 to get sort of watersealing. Cleaning the old gooey seal is the most tedious task in the process, but do it right if you want some watersealing afterward.
M**Y
TERRIBLE! This should be illegal!!
Samsung S23 ultra. As soon as I got it back from my phone guy I charged it to 100% then unplugged it to let it sit while I was asleep. It lost 10% just idle for 9 hours. Now today I started lightly using the phone since 9:00 a.m. It is now 1:26 p.m. and the phone is at 9%. Absolutely trash! Waste of time and money. This company should be required to pay for the labor wasted on installing their junk.
G**C
DIFFICULT BATTERY REPLACEMENT FOR ME, BUT BATTERY SEEMS VERY STRONG
9/25/25- Luuzkla 19800mAh (2025 New Upgrade) Battery Compatible with iPhone 12 This was the very 1st battery replacement for this phone. After install, I do not see a battery warning of any kind unless I go to BATTERY in Settings and look in Battery Health. It says it cannot determine the Battery Health. *The screen removal suction cup that comes with this kit is WAY too weak to remove a well-sealed iPhone screen. I ended up using my dash Cam suction cup, which worked much better. *This kit does not come with a stand-off screw remover, so you will not be able to remove the Haptic Engine and Sim Card Holder (which seems to be unnecessary anyway). * It is HIGHLY doubtful that this battery is actually 19800mAh. I haven't measured it, but it's probably closer to 4000mAh (which is a total guess). I just put the battery in, so I will report back as soon as I have any info. So far, it's MUCH better than the failing OEM battery and took about 6 hours to charge via cable, (not wireless) from completely dead. *Battery comes half charged. *ADVICE... After install, run battery all the way down until your iPhone shuts off and leave on charger 1-2 hours AFTER fully charged. Do this a few times to set the battery memory and to see if your phone and battery BMS are working correctly. English instructions poorly worded and hard to understand, and it basically tells you to watch a YT video for instructions. I've replaced older iPhone batteries before, and I must say, this was by far the toughest one to do even after watching several videos. At one point, I almost wrote off my phone as I just couldn't get most of the connectors to pop back on, especially the battery connector. I never had this type of issue before this repair. I also followed a written addendum they included that tells you how to place and reconnect the battery, but it still took countless tries. Finally got it all together and powered up to a completely grey screen, which scared the bejesus out of me. Re-tried a power up once more and it worked. YAY! The kit comes with the 19800mAh battery, 3 different screw drivers (which should be color coded), a pick, an angled-pair of electrical tweezer, a plastic pry bar (Spuger), a suction cup (that's too weak to pull the screen off), adhesive strips to hold down the battery and a replacement screen gasket. NOW I GOTTA DO MY WIFE'S IPHONE 12... UGH!!! 10/4/25 UPDATE- Still working great. Charge seems to last a bit better after a few days of training the battery (charge to 100% and use all the way til the iPhone shuts off by itself). Was worth the money, but again... install was not easy.
M**.
Pretty Nice
Installed this several weeks ago in my pixel6 since the OEM battery went all spicy pillow on me. Was easy to install and has held charge great so far. Used a hair dryer in addition to the provided tools, also used my own microdriver set since i like it, provided screwdriver would likely work fine. Make sure you have a magnet or small cup handy during install so you do not loose the screws. Kit comes with a replacement seal - I did not catch this right away and just reused the factory seal.
G**.
Works well with Nitendo Switch HDH001 unit
This Luuzkla 8200 battery works well in my Nitendo Switch HDH001 unit with one exception. Due to this battery being an 8200mAh larger capacity than the original 3400mAh battery, the Nitendo Switch battery screen percentage info will not work.
A**Y
Incorrect adhesive strips to secure battery to phone
So far the battery seems to function correctly. But installation was complicated by the incorrect adhesive strips that secure the battery to the phone. They weren't even close to the original factory tapes, and it was difficult to jerry-rig them to work. At that point in the repair, though, I wasn't about to start over, especially since the strips included looked just like the product description photos, and I likely wouldn't have gotten anything better even if the seller replaced the kit. And of course, I didn't realize the tapes were different until I had removed the old battery, but by then it was too late to do anything about it. That being said, it is a tedious installaion, with extremely small screws with the infamous Apple weird screw-head types. It seems Apple is really discouraging DIY repairs, but I managed to get it done. The tools provided were mediocre at best, with relatively short-handled screwdrivers, etc. Overall it was only an average quality kit, with a hopefully higher quality battery. We'll see if it lives up to its power rating and lifespan. So far so good.
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