Voltaic Systems V75 Always On External Battery Pack with Dual USB Ports - 19,200mAh

This V75 is the third Voltaic Battery pack that I have purchased. It feels solid, has a substantial amount of power and just the right ports. I liked this so much that I bought it a second time, which is saying a lot since I own nearly twenty assorted battery banks. I use them an a bunch of electric vests, to charge gear, not only phones but also camera batteries and to run cameras! These Voltaic's claim to be always on, and I believe that is a function - while often found in USB-C ports is not a native feature to other USB port types. This product performs better than most if not all other banks that I own in three ways:1] With a high powered charger it charges VERY FAST!2] The dimensions are very efficient to pack the greatest capacity in the most compact shape.3] The always on feature for the USB A ports allows me to use it with intermittently operated devices that I may want to operate remotely with the power shutting off at the bank, making the device unresponsive.Just as or perhaps even more important that the hardware performance is the human force behind the product, and I was particularly impressed with the ease and professionalism that the company backed their product, and replaced a unit in which only one port became defective!These battery banks are without a doubt the best looking, and best feeling packs to have and hold and dealing with the company has been a pleasure.

Everything about this is exactly what I need to keep my phone charging- unlike the non-apple battery cases where I have to press the button on the battery case to keep it charging- this keeps my phone and battery case charging continuously. It could be used to charge a phone with or without a battery case.The way I see it- it’s an extension of the battery case- extra battery power- plus it creates the advantage similar to the older apple battery cases- it keeps charging and no need to press a button to get it charging again. Suits my needs perfectly. I’ll update if there are any issues. Quality product. Very simple to use.

works as advertised, successfully powers 5V microelectronics projects directly, without shutting down because it 'thinks' the typically low current draw is just leakage.

I used Anker before until the plastic melted and scared me... immediately threw it out and never used them again. I purchased this Voltaic batter bank and it has been the best power supply I've owned, over two years of non stop service still charges fully and discharges as if I just bought it. I would highly recommend this product, for it's quality and performance also it's about 1milliom times safer than Anker so please invest a little extra and buy voltaic trust me.

bad battery, discharges quickly

Unlike many power banks, this one does not stop providing power when a device only needs to sip little amounts of power.A "safety feature" of many power banks forces them to stop outputting power when they detect that the device plugged into them is fully charged or is only drawing tiny amounts of power.I needed to find a power bank that would continue to power devices that only draw tiny amounts of power.THIS IS THE ONE! It's perfect for this requirement.It also has another added benefit. It can be charged while it continues to power devices that are plugged into it. That's amazing for my application. (It can also be charged by a solar panel if necessary.)I'm now planning to buy at least two more for use in my projects that require this specialized power bank.

Bought this to power a series of watch winders, the others I tried wouldn’t stay on or power back on when the winders would draw power a few times a day. It only lasts for a couple days however and the units run months on a C battery, so I suspect there is a power loss cost to having it “on” and ready all the time. Still does the job but I think I’m wasting a lot of energy charging it up to wait 95% of the day for a power draw. I don’t have a better solution so will pay the extra cost for now.

always-on feature is great.when it runs out of power, charging the battery takes about 24 hours. considering the premium price, they should add fast charging for recharging the battery.