4000mAh iPhone s / /7 /8 Battery Charging Case is designed to improve the performance and battery life for your cellphone, an ideal buddy for office, game, daily life, outdoor, long distance journey & business trip.
With powerful 4000mAh actual capacity, the battery case add extra 22 hours' talktime, 80 hours music time, 18 hours video recording time for you, a perfect battery backup for your iPhone s / /7 /8.
Convenient LED Indicator
Lights let you know how much power is left.
More Than a Charger
The battery case also plays a role of a protective case for iPhone s / /7 /8, which helps to protect your smartphone from scratches, scrapes and shock.
You can sync data to your Macbook, PC or laptop and charging your iPhone at the same time without removing the battery case.
Built-in Magnetic Metal Design
Works well with any magnetic car phone mount, convenient to operate your charging cellphone while driving.
Battery type: Lithium-polymer
Capacity: 4000 mAh
Working Temperature: 0℃-45℃
Dimensions: 5.x2.8x0.7 inch
1 x 4000mAh Battery Case for iPhone s / /7 /8
1 x User Manual
Customer reviews(27)Write Review
This case easily fits my iPhone 8. Ability to remove the top cover of the battery allows easier installation and removal of the phone compare to other case.
Magnetic back allows me to attach my phone to my car mount holder ( I hate sliding mount where you have to slide the mount to fit the phone)
Once fully charged, the phone lasts for more than 2 days.Even if you don't use your phone, this kind of case is useful during travelling.
Only issue with this case is that, you cannot use Apple earphone while the phone is attached to the case. You will have to use Bluetooth enabled earphones.
Using it for past 2 weeks, so far no issues.
I did some experiments charging my phone, both from zero and partially, during the day when I was using the phone pretty constantly as well as overnight when the phone was not in use. I found that it provided about 90-100% charging power during the day while the phone was being used (my phone was down to 50%, I used this to charge it up to 100%, then my phone went down to 50% again, and I used this to charge it back up to 95% at which point it ran out of juice).
Charging the phone from this case when the phone is not in use appears to provide about a 125% charge- I charged it from 0% overnight, it charged my phone to 100%, and still had some left.
The fit and finish are first rate, it feels very high quality. Have not had it for too long but seems like a life saver at a reasonable cost.
Also, I suggest you get a screen protector while using this, the screen is very exposed, I had to trim the screen protectors I got with scissors a bit to make sure the case didn't interfere with them.
Cons: It does make your phone weight a lot more, which I don't care about. However its worth mention it if anyone cares about that. The case its a very tight fit and very difficult to take off the case. I had to use a plastic knife and a lot strength to take this case off after trying to take it off with just my hands. Other than great case for the money with great materials.
It keeps my phone charged without overheating. its good to have battery case for day outing and vacation .
Now I can go a few days without having to charge it. Really nice product.