Digital Trends may earn a commission when you buy through links on our site.

The best iPhone 6S battery cases

Apple has made it easy to hang on to your older iPhone for several years by making its newest operating systems backward compatible with five-year-old models like the iPhone 6S, while previous iOS versions work on a number of even older handsets. Batteries, however, are consumable items that may wear out before your phone does, and that’s where a case that touts more than just hard-shell protection comes in. Below are the best iPhone 6S battery cases that offer great protection and a juice boost when you need it.

Casely Battery Powered Charging Case

Casely Battery-Powered Charging Case

With its numerous layers of durable polycarbonate and a 1.2mm thick edge, Casely’s battery charging case makes sure that if your phone slips through your fingers, the result will not be cut fingers on broken glass. This stylish charging case — with raised, embossed buttons — also ensures that your phone’s battery remains functional without your having to scout around for a power outlet and charging cable. Just charge up the case and slide it on your phone for non-stop power.

LoHi Battery Case

Casely Battery-Powered Charging Case

The slim, lightweight LoHi iPhone charging case, with its protective raised sides and hard-shell design, features a powerful 5,000 mAh built-in lithium polymer charger chip that promises your iPhone 6S more than 270% extra battery life. Its durable clip will not break when you pull the phone from the case. The charger case requires two hours to charge your phone, with auto power off and intelligent power management to shield your handset from overheating and overcharging. The interface supports charging, audio, and data sync with your computer.

QTshine Battery Case for iPhone

QTshine Battery Case for iPhone

The QTShine keeps your iPhone 6S ready to rock with a powerful 6,000 mAh built-in lithium polymer battery chip, which more than doubles your iPhone’s battery life, especially when traveling or pursuing outdoor adventures. Four LED battery level indicators let you know how much power you have. The batteries feature a safe circuit diagram design that protects your iPhone from overheating, short-circuiting, overcharging, and discharging. The case’s sync-through tech lets you simultaneously charge your iPhone and the battery charger case. The hard case provides a protective bumper to shield your iPhone from scratches and impact. It comes in red, black, or rose gold. Note that this case is not compatible with lightning headphones or 3.5mm headphones, but works with Apple AirPods or other wireless Bluetooth headphones.

Moshi iGlaze Ion iPhone 6/6s Battery Case

Moshi iGlaze Ion

The Moshi iGlaze Ion is a stylish and functional piece of kit whose 2,750 mAh of power promises to double the battery life of your iPhone. Its power management circuitry supports 2.1A fast charging. With a two-piece, slide-on ​design, it’s slim and compact with a shock-absorbing, rigid polycarbonate frame, soft microfiber lining, and raised bezel. Use the battery only when you need it by attaching the battery pack when you’re running low. For slimmer handling, you can remove the battery pack entirely and just use the case. The package includes a headphone adapter and Micro USB cable.

Alpatronix BX140 Slim Protective Extended Battery Charging Case

Alphatronix Battery Case

The Alpatronix BX140 provides full-body protection in a sleek, compact, and lightweight design. This case features elevated bezels to avoid screen-to-surface contact and a solid screen protector. With this phone case, installation is a breeze; You won’t need to worry about taking it off to charge your phone either. Simply remove the bumper frame, carefully place your iPhone in the case, and then plug the device into your charger. Once your phone is in place, you can reconnect the case’s bumper frame along the top and squeeze the sides until they click into place. From there, you can charge your phone and case simultaneously with your provided cable and any USB charger. Keep in mind— this case also fully supports Apple Pay and CarPlay compatibility and won’t interfere.

Pxwaxpy Battery Case for iPhone 6S

Pxwaxpy Battery Case

If you’re looking for a case with maximal bonus features, consider the 6,000 mAh Pxwaxpy Battery Case. This phone case supports 17 extra hours of talking, 60 hours of music-listening, and 13 hours of video entertainment. Users can use this device to sync their data while charging their phone at the same time; Simply slide your phone into the case, place the top back on, and then press the On button for roughly three seconds to start the recharge. Not only does this phone feature durable, full-body protection from scratches and wear, it also comes with several internal chips to protect your iPhone from overheating, short-circuiting, and overcharging. You can also use this case with 3.5mm lighting headphones or wireless Bluetooth headphones.

Mophie Juice Pack Plus Protective Mobile Battery Pack Case

mophie juice pack plus

The Mophie Juice Pack Plus allows you to lengthen your phone battery’s lifespan with a rechargeable 3,300 mAh lithium-ion polymer battery. When you use this case, you help add about 120 percent more power to your phone— which ultimately equals 31 additional hours of talking, 22 more hours of web browsing, and 24 more video play hours. To use the battery, remove the top part of the case and slide your iPhone straight to the bottom. Your phone should connect with the Lightning connector along the bottom. From there, reconnect the top cap, and it will start charging. If you want the case to standby, you can press the bottom button. Keep an eye on the built-in light sensor to monitor your phone’s charging status. The Mophie Juice Pack Plus has a rugged, durable rubber exterior that protects your phone from falls and other impacts.

Editors' Recommendations