TalentCellRechargeable 36W 12V/3000mAh Lithium Ion Battery Pack, 12V/5V Dual Output External Battery Power Bank with Charger for LED Strip, Tape Light, CCTV Camera and more, Black

Solid well built power pack.

Really good little unit, would recommend

I bought this as a way of using my e-spinner (for spinning yarn) without having to plug it in. Very useful for spinning away from home such as at a guild meeting. It lasts a good time on one charge. Two afternoons spinning and still there was plenty of charge left. Also, I can charge my phone, Kindle or my smart watch at the same time.

Nice battery, quick delivery. Haven't had the opportunity to test it extensively, but so far I'm satisfied!

Bought as a back up for an Ashford espinner for when I don’t have access to a plug. Works well.

Bought as needed something to run a skywatcher AZGTI. Found on numerous forums. Works well in the battery compartment. Needed a bit of soft packing felt to stay in place.

On paper this product was the perfect solution to a couple of needs I have. Recharging an iPhone and running a fan in an anti covid 19 air filtration system .... why use a useless token mask when you can use a +ve pressure breathing system?Upon receipt I was disappointed with the build quality, especially for the price I paid ... I have used it for a few days and it does seem to provide the energy needed, so that is good. Charge time is slow but was indicated in description, so that's fair enough. My two gripes centre around build quality and LED functionality.The case which is held together by 4 screws actually creaks and has a flimsy flexing feel in my hand ... really disappointing. Further more the moulding process left little ?extruded bits in two of the LEDs viewing holes so the LED's were obscured from view until I carefully reamed the viewing hole out. Don't like the idea of the LED's being set back within the body of the device rather than flush with the surface and filling the viewing holes. So I felt a very poor quality design solution and finish.The LED's were described as a fuel gauge which they are. BUT do not expect the 5 LED's to represent 20% charge each in a linear fashion. They do not. 4 LED's remain illuminated for much of the time in use with switch down from 3 to 2 to 1 happening quickly. An annoying and unhelpful quirk.In practice I have found the rocker switch liable to accidentally being switched off ... but then I could see it had a rocker switch but hadn't appreciated why most portable devices have push button switches. My fault.The USB port has a rough and unpleasant resistance to iPhone plug insertion, as if there is some misalignmentHad I paid around 20 to 25 GBP I would have said it represented good value for money. At over 30 GBP to me it does not. I am keeping it but would not buy another one.UPDATE 4.8.20 The unit has now failed .... utterly useless and very bad value for money. Cheap and nasty fort sure.

As described, simple to use