SUPEREX 11200mAh 2-Port 5V 2.1A Power Bank External Battery Pack 4 Slot 18650 Battery Charger with LCD Display for iPhone 6 Plus 5S Galaxy S6 S5 Nexus 5 HTC One

This is a "no brainer" product for those that want a portable charger or 5v power supply. Though it comes with average sized batteries, you can insert 18650 batteries of the quality, price and mAh ratings of your choice. I like this because you can shop around for the quality of batteries you want and choose the mAh rating you need all for the price you want to pay. Another way of saying this is the quality and the mAh rating of the batteries will determine the longevity and the length of time between charges of the power supply. And you choose what you pay for them. This unit really appears to be of good quality. I love the display for power remaining of each battery. It doesn't come with a flashlight built-in but and it should not. Flashlights of all kinds can be found to meet your specific needs and would just be something that would increase the cost of the unit or that break at a later time. It has two usb ports to power/charge two external units at the same time. And the batteries are charged within the power bank eliminating the need for a charger. So far I have charged my iPad, hobby style quad and hex copter batteries while in the park, my wife's iPhone 6 plus, a high power rechargeable flashlight, and some bluetooth headphones. And it does come with it's own charging cable. All in all it's a "GREAT VALUE" for the money. I will buy more for friends and relatives as gifts or "prepper" needs. I bought this power bank; it was not provided for compensation for a review.

The main reason to get this power bank:You can replace the 4x 18650 batteries if they ever go bad, charge 18650s and use them in other devices such as tactical flashlights, and it will still charge your USB devices if you take out 1,2, or 3 of the batteries.Another feature that other power banks lack: current draw readout for each port, and charge status of each cell individually.I was issued by my employer the IOGEAR GearPower 12,000mAh power bank which looks much nicer: shiny plastic, chrome accents, etc. BUT: you can't replace the batteries, and there is no current draw indication. Just 4 green bars to indicate how much charge is remaining.Construction: The SUPEREX power bank certainly looks more utilitarian, and the plastic is more flexible but quite thick and tough, like frisbee plastic. The IOGEAR GearPower 12,000 has a very hard shiny plastic, the kind that seems like it would crack if dropped on a hard surface.Replacement batteries can be salvaged from notebook computer battery packs (most notebooks use 6-8 cells of 18650 batteries.) Or buy new ones for about $3 each.

Initially I wanted a Li Ion 18650-based USB power pack that I could use to swap in higher quality (Nitecore) batteries into, but after fully charging the SUPEREX charger, I'm very impressed with the current this unit can provide to my LG G4. I have a PowerGen portable power bank with more mAh capability, but according to the phone it can only supply 1000-1100mA of charge. The SUPEREX is currently providing 1400mA from the phone's point-of-view (1.50A on the front display) which is outstanding.The combination of rechargeable/replaceable 18650 batteries and a surprisingly strong and willing charging current make this unit WELL worth the extended shipping wait.

There aren't a lot of power banks that use replaceable 18650 batteries. After doing a lot of research I bought this one. I get only two phone charges from these batteries. They seem to drain much quicker than they should. Also, I find it hard to open the battery compartment.

I have used it both as a power bank and a charger. Aside from the fact that getting it open is like working a puzzle box when your drunk. It's a fine appliance.

I use this in backpacking to charge flashlight batteries, and to use as a power bank to charge my phone and other electronics. Very versatile piece of gear, portable, and easy to use.

Great for what it is. Just an emergency battery bank. I will be replacing the batteries that came with it and putting in Samsung 25r 18650s. I ordered 2 of these battery banks and one has a slightly faulty screen. The screen isn't the best to begin with but for the price it's good enough. The slightly faulty screen has 3 lines running through it that don't display. Hasn't hindered my usage, just really annoying.

The device took a bit of learning before use but once understood it works very well.