The Sony Xperia Z1 does come with a nice 3000mAh battery inside, which does normally last a full day. But what if you've got a very busy, and long day ahead of you? That's where external battery packs come in. So you can keep your phone going all day long. We've gathered 10 great external batteries in this roundup.
10. Jackery Bar 5600mAh Premium Portable Power Bank
Jackery has a nice external battery pack which does have a capacity of 5600mAh and is available in orange. Jackery says that this is the worlds smallest external rechargeable battery, that has a 2.1A output for fast charging. It's also got a compact size at just 3.8 x 1.8 x 0.9 inches.
9. Samsung Universal USB Extended Battery Backup
Samsung has a nice 9000mAh battery available for recharging your smartphones and tablets. It's not just for Samsung phones either, but any device that uses a microUSB port to charge. It should be able to charge your Xperia Z1 around 3 times. Which is nice to have.
8. Anker Astro Mini 3000mAh Ultra-Compact Portable Charger
Here's a relatively small external battery charger. This one is from Astro and has a 3000mAh capacity and can charge your phone almost one full time. Which is nice, especially since it is a pretty small device.
Anker Astro Mini 3000mAh Ultra-Compact Portable Charger Lipstick-Sized External Battery Power Bank Pack for most Smartphones and other USB-charged devices (Apple Adapters- 30 pin and Lightning, NOT Included) - Black
7. EasyAcc 12000mAh Power Bank
This is a monsterous external battery pack from EasyAcc. It's got 4 USB ports for charging your devices. So you can charge up to 4 devices all at once. And at 12000mAh capacity, you can probably charge about 4 devices from empty to full. Which is nice to have as well.
6. RAVPower Deluxe External Battery Charger 14000mAh Portable Power Bank
Here's another nice sized external battery charger. This one is a 14000mAh capacity which can charge your device at least 2-3 full times, depending on your device. There's also 2 outputs so you can charge two devices simultaneously.
5. Lenmar Helix 11000mAh external Portable Battery Pack
Lenmar has a nice external battery pack as well. This one has an 11000mAh capacity and has 3 USB ports, so you're able to charge your smartphone, tablet, and even the HP Chromebook 11. Which is always nice to have.
4. Limeade Blast L130X, 13000mAh External Battery Pack
Limeade is one of those external battery pack manufacturers you probably haven't heard of. But aside from the 13000mAh battery here, they also have the 18000mAh, and the 24000mAh battery capacities. They all include 2 USB ports as well as a built-in flashlight.
3. PowerGen 12000mAh External Battery Pack
Here's another high-capacity battery pack, this one's from PowerGen which does have 3 USB ports inside so you're able to charge 3 different devices all at once. It should be able to charge your phone about 3 times before it runs out power, along with charging your tablet once as well.
2. New Trent iCarrier 12000mAh Portable Dual USB Port External Battery Charger
Now this one might not be the best looking external battery charger out there, but it is a pretty good one. There are two USB ports on board and it's got a 12000mAh capacity as well. So it should be able to charge your phone a few times before dying.
1. Anker Astro E5 15000mAh Dual USB Portable Charger
Anker is pretty much known for their chargers, and here they have a hefty 15000mAh battery charger that has 2 USB ports, along with 4 status LED's to keep you informed of remaining capacity on the Astro E5. It's got enough juice to charge your phone a good 3-4 times, which makes this essential for a lot of people that travel a lot.
Anker® Astro E5 15000mAh Dual USB Portable Charger Ultra-High Density High Capacity External Battery Backup Power Pack for iPhone 5S, 5C, 5, 4S, 4, iPad Air, 5, 4, 3, 2, Retina iPad Mini 2, Samsung Galaxy S4, S3, Note 2, Note 3, Google Nexus 4, 5, 7, 10, HTC One, Motorola Droid, MOTO X, LG Optimus and more (Apple adapters - 30 pin and lightning, not included) - Black