Whether your phone’s battery life is an issue for you or not, you just can’t deny the fact that a power bank is something worth having within reach all the time. Your iPhone has so many functions working all at the same time. As they go about their usual routines, they also drain precious juice from your battery life.

What happens when you have no battery left and have to make an emergency call? What if your day’s schedule is all saved in your iPhone?

You can’t afford to run around looking for a power outlet you can use, especially if you’re typically on the go. But with a trusty power bank in your bag, you can recharge anytime, anywhere.

Here are some of the best options if you need a power bank for your iPhone:

• Smart Battery Case

Well, we’re not exactly sure if you can qualify this as a power bank, but it definitely adds more power to your phone. The Smart Battery Case is a silicone case that houses additional battery life on its rear side, adding up to 25 hours of additional power to your iPhone.

• Recharge 12000

The name itself will give you a pretty good picture of how much power this power bank can provide. The Recharge 12000 stores up to 12000mAh of power if it’s charged to its full capacity. If you’re using an iPhone 6, that means you can charge it for up to 5 times over. That makes it perfect for long trips and busy days when you just don’t have the chance to charge your phone the usual way.

• Charge 2+

JBL created a real dream with this one, giving you not just a power source, but a speaker as well. With its 6000mAh rechargeable battery, it allows you to recharge your phone fully and still have enough juice to play music for hours. It’s just about 7 inches long and is a mere 600 grams, so it’s easy enough to bring around with you.

• Braven BRV Bank

Some would see the BRV Bank as a bit too chunky for their taste, but once you see what it can do, you probably won’t mind its size. It has a 6000mAh battery, and even allows you to charge 2 different devices at a single time. It comes with a flashlight too, in case you have to look around deep into your bag to find your lightning cable. It can be connected to your iOS device via Bluetooth, allowing you to monitor its battery level closely through the Braven app. And if all that isn’t enough, it allows you to send an SOS signal in case of an emergency.

It’s amazing what these power banks do! It’s no wonder stores that sell iPhones highly recommend these for all iPhone users. They definitely do the job, and for some of them, they do even more than what is expected of a power bank. And anything that has additional functionality is usually good news for anyone, iPhone users or not.