







🔋 Power up your iPhone 11 Pro Max with unstoppable energy and pro-level confidence!
The XYIRMCYF 21800mAh Replacement Battery for iPhone 11 Pro Max offers a supercharged upgrade with more than double the original capacity, zero charge cycles for peak performance, and up to 2000 recharge cycles. It includes a professional repair tool kit for easy installation and features advanced safety protections certified by major standards. Backed by a 12-month warranty, it’s the ultimate power solution for millennial professionals who demand reliability and longevity from their devices.
| ASIN | B0FH6TPV11 |
| Best Sellers Rank | #714 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1 in Cell Phone Replacement Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (853) |
| Date First Available | July 10, 2025 |
| Item Weight | 5 ounces |
| Item model number | 11ProMax |
| Manufacturer | XYIRMCYF |
| Package Dimensions | 7.2 x 4.41 x 0.75 inches |
K**N
XYIRMCYF Battery note 10plus
Very good product.ordered it for my Note 10 plus, work perfectly and I would say easy value for money. At the same time I don't see any changes in the capacity of the battery and how long it takes to run dry
J**P
Great product, may have caused strange charging behavior (read desc)
These things last forever, they seem to have issues charging and I don't know if that's just because of my controller but it takes very specific cables to charge my controller now (chromebook chargers, and other high power chargers). My girlfriend's controller does not have this issue so I do not know the cause, just wanted to note it.
D**S
Cheap price to bring your phone back to life
Great product. For as little as $30 brought my iphone back to life. The replacement process is not extremely complicated, but you definitely need an youtube video for instructions and visualization otherwise it would be easy to mess it up. Battery fits perfectly and plastic film with a new screen glue lines up very well.
D**R
Charged up!
Works just fine!
H**R
Good battery
Installed holds charge good unlike another one I bought and tried and return off amazon. This one holds a charge really really well. And I watch a lot of YouTube etc. easy install. Good quality as it has a good screen time. Came fast as well and fits perfectly.
X**Y
Standby 4 days
It standby for 4 days with 20% remaining. There is a trick to install. I snapped in the battery with finger and kept for a day to check without closing the cover. It drained in 24 hours. Then, I pressed all connections firmly with the plastic tool and saw the battery declined slowly. Obviously, loose connection burnt power quickly.
L**R
Worked great for an Iphone 6
As other reviews have mentioned the claimed 13000mAh capacity of the battery is false advertising, the actual mAh is less. It's probably the same as a standard battery for whatever model you getting a replacement for. I didn't see any reviews for a base Iphone 6, but my wife refuses to let hers go and the battery was completely bad and wouldn't hold a charge at all. The swap was very easy and installation was a breeze took me like 10 minutes to open the phone and remove the old battery/screen and then 5 minutes to put it all back together. The phone's battery now is basically back to good as new which is why I'm giving 5 stars despite the false mAh rating as I knew that going in.
M**K
Good Quality and Fit
My daughter's Iphone 7 is now working well again. Battery health shows 100%. Time will reveal how long it lasts however great so far!
R**K
It’s been months and all is ok. Have steady hands, no distractions. White background for repair. Do a YouTube and make sure it’s for your phone. Easy to do. Once you’ve done one, you’ll never use service again. Comes with all the tools (which I’ve used for other repairs requiring tiny tools)
R**D
Buena calidad
Y**L
perfect
A**V
La batterie est morte tres vite. Dans 4 mois elle ne prend plus la charge.
A**R
Super good
Trustpilot
2 months ago
2 weeks ago