Mophie 401001476 juice pack - Qi Wireless Charging Battery Case - Made For Samsung Galaxy S9 - Black

Works great and operation is simple. This is the second one purchased for this phone. The old one was replaced simply because it got too damaged from heavy use. This was used for a work issued phone that went many places and was dropped in some weird places. I consider this a sacrificial/consumable accessory that performs 2 functions very well: Keeps a busy phone charged and protects it from drops and bumps. I highly recommend the Mophie juice pack.

What can I say, its a Mophie, been using their products for many years since the smart phones came out. Fit is very good on my Samsung S9. Other nice feature is the built in battery backup. Many days I am on site without means to charge my phone for extended periods of time and this case helps bridge the gap quite nicely.

I did a few trials to see if I did something wrong. Left it charging without phone overnight. In the morning, put my phone in the case at 30% and pressed the charge button on the case. Phone battery got to maybe 50% and the phone case battery is 2 out of 4 lights. If you are OK using this as a protective case, I guess it's ok. Don't count on this case giving you a full charge if your phone is completely dead.

When I first brought the case, I thought it was defective, but then I realized that I had to keep pressing the button in order for it to turn on as well as to turn it off, so it works great!! When I first brought the case, I loved it, it felt good in my hand and it is actually lighter than most battery cases. It also charges my phone quick. So it was just what I was looking for. Thank you!

I've had a Mophie charger case ever since I got my first smartphone - I love them. Have to say, though, I'm not a huge fan of this model for the Galaxy S9. My notes cover the following:- charge activator button- durability- microphone/speaker quality at base- buttons/other usage- style- functionThe 'activate charger' button on the back is an LED press-and-hold now instead of an itsy colored switch (loved the latter because you could tell if you'd already depleted your charge with only a quick glance to the back) - it's just annoying to figure out whether or not you have any 'juice' left in the case. It does a really good job of protecting your phone, though - I've dropped mine about a thousand times over the last two years and my phone is completely undamaged (though the case really needs to be replaced). Generally, I find with my use the Mophie cases last a solid year before they start cracking from my excessive dropping - I've gone nearly two with this one (though it's in pretty bad shape now). The speaker at the bottom is okay but it's not great: the case covers but has a different outlet to divert the bottom microphone/speaker. I'll often take it out if I'm on speakerphone to improve my sound quality. The side buttons are not as good as earlier models, though - I often have to press a couple of times to get it to register. I also often have to remove the case to help it cool off faster if I leave it in the car or the sun for too long. This case is also not compatible with the wireless chargers. Stylistically, I think it's a pretty slick design for what it is (and how well it protects) though I CONTINUE to be disappointed that it only comes in black (earlier models came in all sorts of colors, which was so much better). But, at the end of the day, I can bring my phone up from the brink of death to a full charge. It's always functioned perfectly well for me doing the job I bought it to do.