Lightest 5V USB 20000mAh Power Bank for Heated Vest, Gilet, Fast Recharging Battery Pack for Heated clothes (Black)

Use thus pretty much every day, to keep either phone or tablet charged. It's not the lightest of power banks as I have another one but that one is half the mAh (10,000mAh). I've been using this for a little over 2 weeks now and have only had to charge this up once, and looking at how much charge is left on it now it looks like just over 50%. This will be definitely getting packed into my carry on when going on holiday. It has a little digital readout screen to tell you what charge is left on it (again is great rather than guess work) and connection it ha 1 usb type-c (input), 1 usb type-c (output) and 1 ordinary usb. It doesn't take ages to charge up. This power bank is sold to be use with a heated vest, but i never got this to use with a heated vest (I don't even own a heated vest) I got this to use to charge up mobile devices, which it does quickly and easily and because it's a 20,000mAh power bank it was a no brainer. Also at less than £30 it's cheap as chips.

This 20000mAh power bank from OKZU is designed for continuous and stable low draw 5V USB powered items such as heated clothes .I ordered this one to power the inflatable part of a Halloween costume that I wore for 5 hours. There was still a good 32% charge left from the 100% at the start .Certainly slimline and lighter at 300g than some power banks but still a bit bulky when carrying in a pocket of clothing.I’ve since used it to power a heated seat cushion, again good continuous long use - which will be very useful when camping or even at home when nights are chill.Of course you can use to charge your devices , but the charge runs down more quickly . It takes 6-7 hours to recharge fully from zero .Lots of protection in place for your devices which is reassuring ,especially the temperature , short circuit and overheating when using to power an item of clothing .Good value , slimline and multi use , I recommend

When I review these things I usually forget to pay attention to how long charging takes and what the battery levels are etc.I half succeeded on this one today.It arrived partly charged and I fully charged it before use.I took screen grabs / photos to help my failing memory.As you can see the phone had reduced to 20% power and the power bank was at 100% at 18:58At 21:38 the phone was up to 100% and the power bank down to 82%Now, the phone didn't necessarily take that long to charge, that is just when I remembered I had put it on charge - I'd popped outside to try and spot the Northern lights and lost track of time a bit.It is an iPhone 15 so at this rate I should be able to recharge it 5 times before the power bank needs recharging.The read out is clear, there are ports enough for my needs and if you have a heated gilet then I am sure it would keep you toasty for a good while!

I found this to be a novel little power bank. The standout feature for me was that you can charge it via lightning. Now that might be less of an issue as modern iPhones use USB type-c but my family still has older iPhones and iPads so I often have a lightning cable handy. Being able to use that or USB type-c to charge this little power bank just makes it super flexible. I can see why this would be good to stick in a heated vest because it's relatively small and compact. I put it in my daily tech bag and keep it for charging devices on the move. This is useful because it's output options and charging options mean I'm never caught short. Recommended.

Until now I didn’t realize that you can get power bank so light and still capable to charge your phone many times. This power bank has capacity of 20000mAh and size wise on the outside, very small. It has been designed to be lightweight so you can wear it in your heated vest. I have one and using big power banks is not very convenient, usually pocket inside is small anyway so it sticking out or heavy so it drag vest down. This powerbank is perfect fit for heated vest and they even make sure it give stable output. I like that even after long use it doesn’t get too hot which was the case with others powerbanks. When comes to ports, you getting 1x usb-A port, 1x usb-c and 1x lightning for older apple users so pretty much everything is covered. Big screen gives great indication about battery level, for me could be even smaller. In general very basic look but effective powerbank.

Very simple power bank, came in a well-branded box, complete with instructions, the power bank itself, and a charging cable.The power bank itself holds a nice charge and has no issues charging devices to maximum capacity, there’s a few ports on the front that accept the three main ports, USB, USBC, and micro USB, as well as a port to charge the power bank itself.Overall, I think the power bank is nice, it is perfect for trips and to have an emergency backup power because of how small it is and easy to transport.

Standing at precisely 310 grams, this power bank features a very good capacity of 20000mAh. The power bank also has a quite compact size, it is slightly smaller but thicker than my S24.Power bank features 1×USB-A and 1×USB-C outputs, both with very decent charging capabilities.Power bank could be charged using one of the USB-C output ports or iOS input.I do have a heated vest with which I will occasionally use this power bank, but the main purpose of this power bank will be an everyday charging solution for my phone, earbuds, etc.

Huge capacity, solid, quality design and accurate charge indication. I am genuinely delighted with this. It was advertised as a battery pack for a clothes heating system, but as it has a USB A connction then it can be used as a charger for anything usb related. 20,000 Mh, will be enough to charge most smartphones four times over from completly flat. In addition to that, I was surprised to see that it charges in "fast" mode, so it was the same as plugging into a mains-powered fast charge socket. All my other battery packs, and I have three, only charge in standard mode, so this is a huge bonus. Can highly recommend.

I bought this to charge my heated vest for hunting, I paid for the one to last the longer hours but this only lasts 4 hours on the warmest setting and drains the battery, it should last longer. The medium setting on the vest only lasts 6 hours. I also dont like how heavy and bulky it is in my pocket. Larger and wider than my cell phone! I would look for another product/company next time that is smaller and heats longer.

I ordered this to have as a replacement battery for a heated hoodie and heated vest I already have. It works great in both! It is definitely much bigger than the battery that came with these, but also lasts a lot longer. I would say it's about a third again as long, but is about the same width. It is also considerably heavier. So, if the pouch that comes with your heated jacket is not big enough this one won't work. It does definitely weigh down the jacket more, but it also lasts an incredibly long time. I had it on for about 5 1/2 hours yesterday and still had about 40% of battery remaining. I particularly love that it has a readout of the battery remaining, this is very useful. All in all I recommend this as long as you don't mind the trade off of extra size and weight to extra heating capacity.

I have many heated apparel products and always check various power banks. This one has a particularly large capacity of 20000mAh. The capacity works very well for a cold day, and I need to be outside for a longer period. Although it is heavy, that is give and take.The indicator is easy to see and was already charged 100% when shipped.Everything works fine.

I was impressed by how lightweight this 20000mAh power bank is, especially considering how much power it holds. It charges my iPhone and iPad quickly, which is exactly what I need when I’m on the go.One unique use I found for it is using it with my red light therapy belt. While it doesn’t provide the same full power as plugging the belt into the wall (so it doesn’t get quite as warm), it’s perfect for multitasking on days when I don’t have time to lie down for a full 30-minute session. It gives me flexibility and mobility without compromising too much on effectiveness.The power bank is compact, making it easy to carry around, and I love not needing to worry about finding outlets when I’m out or traveling.

It's a good looking battery pack with round corners and sides. That makes it so easy to hold. It only weighs 10.8oz as compared to a 10000mAh battery pack which weighs 7.8oz. So on a capacity to weight ratio, this is a winner. The number of input and output connections are reasonably adequate. The digital battery indicator is a must for me. It is nice to be able to tell how much battery life is left and requires re-charging. This is a nice battery pack. I would definitely recommend this.