Anker PowerCore II 6700, Compact Portable Charger for iPhone X / 8/8 Plus, Samsung, and Other Smartphones

This is by far one of the best portable power banks I’ve purchased. It’s small, compact, & lightweight and charged like a champ. Was able to fit the device, it’s charging cable, & a 4” iPhone charger in the included bag. All that then fit right into my pockets comfortably.I have iPhone 8 that I got when it was 1st released and ran the battery down to 15% to run a couple charging tests on it.1st test I powered the phone off completely and charged using the Anker PowerCore II 6700. Completely powered off it charged my phone by 48% in 35 minutes and used just 1/6 of the power banks power. Next I left my phone on with full scree brightness, connected to WiFi with my data connected streaming a video on Hulu while charging it with the Anker. While doing all that in 30 minutes it charged my phone by 24% and used another 1/6 of the Ankers power.Ultimately conducting those 2 tests used 1/3 of the power the Anker PowerCore II 6700 had and charged my phone my 72% in 1 hour. Just based off conducting these 2 tests I would think that the PowerCore II 6700 can potentially have enough juice to charge your phone from 0% to 100% twice and at least 3xs from 25% to 100%.I will be purchasing a 2nd one to have for my wife’s phone, as well.

This is a high quality battery backup for smartphone. I use it for my iPhone. I went with the this Anker Powercore II 6700mah because it complies to airline regulations, not just in the US but also in other countries. US regulations are more laxed and allow you to carry into the cabin up to ~20000mah lithium battery or ~100wh capacity. However if you travel on international business (or tourism), note that China regulations only allow up to 10000mah for carry on board lithium batteries (I recall this is the same in India). In some other countries like Thailand, if the lithium backup batteries are << 10000 mah, there is no specified limit on how many you can bring on board so I use two 6700mah batteries (instead of 1 large capacity battery) with a 4 port high current USB charger (so I can charge in parallel more than 1 backup battery if I need to). The larger size high capacity battery means you incur the risks of having to throw it away when you transit thru an International security checkpoint at an International airport. The Anker 6700mah has a very small size. You also need to ensure the backup battery clearly displays a printed label on its casing that clearly states its capacity (as is the case with this Anker one) in case security personnel checks it. Note that lithium batteries cannot be in checked luggage (with current regulations).

I was a bit skeptical of this listing seeing as this power bank has been discontinued for who knows how long and isn’t manufactured anymore. What showed up at my door was a NIB Anker product, weighing in at 4.61oz (true to spec), sealed, and as advertised. No real reason why it should cost $38… I don’t know why it does, but I dunno—they don’t make them like they used to and I was happy to pay it because it was the one I wanted.

Anker makes the BEST POWERBANKS. I love thier Power IQ technology. Being an iPhone user I think the IQ tech chargers my iPhone faster than any other charger. I think the PowerBanks with an IQ 2.0 port charge my iPhone faster than a standard wall charger. I have had some problems with the QuickCharge port (QC3) it only trickle charges my iPhone, I think it's made for Samsung phones but not sure. Just be sure to check the PowerBank ports before you buy... iPhone user should look for Power IQ 2.0; Samsung users should look for QuickCharge (QC3).Size does matter, you need something for the weekend camping trip get yourself a larger Powercore 20000 mAh or higher.Need something to just get you through the day the Powercore 10000 mAh will be more than enough.My wife uses the Powercore II 6700 with her iPhone 7 and it gives her a full charge fast.Love Anker Products. Anker stands by their products and replaces anything for free as long as it's under warranty (usualy 12-18 months depending on the product). There is 1 thing I hate about Anker customer support, they are completely impersonal. You'll read this grievance in my most of my recent reviews, I'll explain and let you decide for yourself if Anker Support could have, should have, treated me better. Just bought multiple items as Christmas gifts for 16 family members (16 power banks, 16 lightning cables, 8 micro USB cables, 8 Wall Chargers, 5 Car Chargers) Not only did I spend a lot of money but I gave Anker 16 new customers that are already purchasing more Anker products. So when my personal 6ft Powerline+ lightning cable broke after a few months of minimal use (exposing the wire) I sent in my request for a new cable. I explained how much I love Anker, how I just got my entire family Anker products and got Anker a bunch of new customers and I was surprised the cable broke so easily. I asked if they could replace my cable with the 6ft Powerline+ II, figuring it may be more durable. Their reply was surprising, they wanted to refund me for my cable so I could purchased the newer cable. They did not offer a discount for the new cable, so essential they were not willing to give me the newer cable for free, it would have cost me a few more dollars and honestly I can't imagine it really costing Anker more than a few cents for the upgraded cable. This is such a huge turn off, I'm the customer you want, not just a guy who buys a cable, but someone who buys many, many products from you, gives your products to all of my family members, and promotes your products to everyone... So many of my friends have also gotten Anker cables based on my recommendation. Highly disappointed in your customer service skills Anker, still love your products but I don't plan on promoting your products until you learn how to treat your GREAT CUSTOMERS BETTER.