We all know that the iPhone offers many functions. Imagine you run out of iPhone battery at a crucial moment. So what would you do? With so many options available by Apple’s phone, it would be a shame not to make the most of it due to lack of battery.
An iPhone external battery is basically any battery device outside the iPhone that provides additional power to your device. It allows you to charge your iPhone when needed. They come in different designs and shapes to choose from. They will also vary in their battery capacity. The higher the amount of battery capacity, the longer you can use it to charge your iPhone. We have chosen two types of external batteries for iPhone 4 or iPhone 4S.
Dockergy Artwizz External Battery for iPhone
This external battery can serve as an extra power when your phone suddenly runs out of battery power. The unique aluminium design looks great with both iPhone and iPod. The Dockergy is the ideal emergency iPhone battery for charging on-the-go. It is so small and portable that even when the battery is attached to iPhone or iPod, it will still slide easily into your pocket or find a place in your car.
- Extend the iPhone 4 / iPhone 4S battery life by 50%
- Charges iPhone 4 / 4S from 30% to 75% in 45 minutes
- Capacity: 1200 mAh / 3.7 V, battery with dock connector
- Input: 5V DC / 500mA (via mini USB)
- Output: DC 5V / 1A (via the Dock connector)
- Dimensions: 59 x 58 x 11 mm
QYG External Battery Case for iPhone 4 / 4S
The QYG External Battery Case for iPhone 4 / 4S is a slim, lightweight case with a built in battery pack. It will enable you to use your iPhone 4S all day without having to recharge. Plus, it can effectively protect your iPhone 4 / 4S from scratches and dirt. It is enough to put your iPhone into the case and the charging can begin. All controls are fully accessible device while the device is in the holster.
- Charges your iPhone 4 / 4S on the go
- Standby time: up to 380 hours. Audio playback: up to 28 hours
- Perfectly contoured to fit the curves of the Apple iPhone 4
- LED indicator shows the remaining power
- Easy to insert and remove from case
- Capacity: 1400mAh
- Output voltage: 5 V
- Output current: 500 mA
- Input voltage: 5V
- Input current: 500 mA
- Dimensions: 123.8 x 60.8 x 15
- Weight: 57 g