ZeroLemon, the accessory maker that specializes in battery cases for smartphones, has launched new 3,500 mAh units for the Galaxy S6 Edge+ and Galaxy Note 5.

At present, the most common solution to juicing up a smartphone is to carry a portable power bank. Carrying a power bank is pretty common these days. However, it’s a cumbersome task at times, adding one extra item to your carry bag. ZeroLemon’s solution are battery cases, and they’ve just released new ones for the Galaxy S6 Edge+ and Galaxy Note 5.

The new battery cases have a built-in 3,500 mAh battery, which are capable of fully charging the internal battery of either device. Basically, slapping the ZeroLemon battery case to your Galaxy phablet will probably double your battery life. But the extra battery life comes at a cost – your phone will be heavier, thicker, and a lot less sexy.

Both models come with a black TPU case, which houses the 3,500mAh batteries, where you can slide your phone in with ease without having to worry about any wire connections. The TPU case does add some level of protection to your phone from accidents such as hard drops, but as mentioned previously, it makes your device quite bulky.

ZeroLemon’s new battery cases are now available on Amazon. While the suggested retail price is $69.99, you can find listings as low as $39.99 for these newly launched products. Granted, one can simply buy a power bank for cheaper and carry it around, however, the benefit of having a product such as a battery case is certainly worth considering.