5V 2A Power Bank for Heated Vest, Jacket, Stadium Seats, Chair, 10000mAh Fast Charging Battery Pack for USB Heated Clothing, Heated Blanket, Coat, Sleeping Bag

I bought this OKZU 5V 2A Power Bank specifically to use with heated stadium seats, and it worked great. The size is small and compact, making it easy to tuck into a pocket or bag without being bulky. It powered the heated seats reliably and still had enough capacity to charge a cell phone at the same time, which was a big plus. Charging speed was solid, and I didn’t notice any overheating or performance issues during use. Overall, this is a practical, dependable power bank that does exactly what it’s supposed to do. Great option if you need portable power for heated gear or everyday phone charging.

This is a good powerbank for this price. I needed extra power banks and use these for my portable lower back heated back support belt and they work and last. Seems to have a good constant usage time duration before recharging. Takes a while to charge depending on the charger your using.

Recently I lost my power bank onboard a flight. I was looking for a replacement that is lightweight and could handle at least 2 charge cycle for a combination of my phone collections, Pixel 3 and iPhone 8+, 6s and Oppo. First I bought Anker Powercore 20100, it was kind of bulky and somehow it stops in the middle of charges with no reason. I have to push the button on the side to start again. Also, Oppo charged very very slow before it stopped. No fast charge for Pixel. So the next thing, I ordered: Charmast 20000 PD/QC 3.0. I found it lighter than Anker, however, this one ran 3 charge cycle and got down to 50%. Oppo charged better than Anker though. I was thinking of keeping Charmast, since its lighter than Anker and smaller. But then I came to see Okzu 10000 has the same QC 3.0 and PD. So I got this one too to check out. Okzu has worked out the best so far! The unit is so light. Smaller than iPhone, sleek design and as of writing this, I am running my 4th charge cycle. I charged Pixel 3XL twice, one from 38% and another from 47% and it fast charged like magic. I charged Oppo, and it fully charged from 17% and then the unit shutdown itself. Then I charged iPhone 6s from 19% to 100% in about 93 min. And the interesting thing is, it still shows 2 led lights. I guess for <$20 this is the best one worked for me so far. I am going to return both Anker and Charmast. I am leaving a 5 star for this now, and I will adjust the ratings up or down based on how this unit performs over the next couple of months.

Used with heated bleacher chair. So far power use for chair is about 30 percent discharge after almost 4 hours of constant use. Also charges wifes cell. Easy plug and play. Works as well as much costlier units.

Great product.

The battery works for many different things .

I unexpectedly had to replace my previous power bank and only had a few days to do so. I found this one and decided to give it a chance. This one was on par with the other option I was considering as far as size and power capacity, but really stood out when it came to actually charging a device. The other two options didn't have dual input options for charging the power bank (this one can be charged using usb-c AND micro usb); no quick charging output option at all (this one has USB-A & USB-C quick charge) and they were both more expensive. I thought my previous one charged fairly quick, but this one made me realize just how wrong I was. It charged my phone in 35 minutes (from 56%) and then charged my husband's phone in 45 minutes (from 38% to 95%) and still had plenty of power to spare. I would definitely recommend this charger to others. Pros: Dual input charging, USB-C quick charging out, Thin, lightweight, plenty of power. Cons: None that I found. I haven't had it very long, so as it stands right now, longevity is still the only unknown variable. Based on my experience with it thus far, I don't anticipate any problems going forward. But IF something does come up, I will update this review accordingly.

Battery got bulging and unsafe at 4 years. I got it late october 2021, I'm writing this early november 2025. DO NOT BUY THIS BATTERY

Work great

Took a few days to arrive. Came late. I was starting to be concerned.