Talentcell 12V Lithium ion Battery Pack 11 1V 9000mAh 99 9Wh Portable Power Bank DC 12 9V and

I'm using the 8300 mAh version of this product to power four Wolf Module 4.1 watch winders which are kept in a safe. Some batteries I've tried shut down power if the load is very small, such as when the winders are idling between charge periods. That effectively turns off the winders and wipes out the memory settings. But the Talent Cell stays on and performs pretty much as if the winders were being powered by an AC wall adapter. Before first use, I used the AC adapter to fully charge the Talent Cell, then connected it to the winders, which are all pigtailed together. All four charge LEDs were lit. That was on September 8th. Now, ten weeks later, the Talent Cell still displays two of the four charge LEDs, and all the winders are working perfectly, and away from the view of potential burglars. Because I'd need to run an extension cord into the open safe every 90 days to charge the Talent Cell while it's still powering the winders, I decided to remove it from the safe for charging and not use the splitter cord. This wipes the memories, but it's preferable to hauling the entire bank of winders out of the safe along with the Talent Cell. Bottom line, this is a very good product for my application, and with plenty of life between charges. As a bonus, it cost about half of what I paid for another brand that had about half of the mAh. Read more

I had owned this company's older, smaller version from a couple years ago and couldn't find it come this winter. I ordered this one because the last was great and for the added time of use provided by the larger bank. The older one fit in my M12 chest pocket nicely with an extra power cord that I ran inside the jacket and you never noticed it being there. This one though, is a brick; much larger, much heavier, which I knew going into it but it's just as uncomfortable to have in the back pocket as the larger M12 batteries. The BEST PART is that I found my old one (unused since last winter) still holding a full charge and ready to go! I will put this one on the usb port in my backpack and use it with my jacket when I know I'll be in the cold for a lengthy time. If their battery packs are good enough to hold a charge for about a year without use or charging, there's no way I'm giving this one up. I'll find a use for it! Read more

I have a QRP (low power) radio that needs a 9 Volt power supply. This power unit provides 9 volts and operates my radio perfectly. I get several hours of power when running in FT8 mode. The unit is well-build. I provides a 12 volt output as well and comes with several adapters and plugs. A recharging unit is included. I'm very pleased with the performance. Read more

I bought this to power an old 9 volt electronic measuring instrument rather than recelling the internal NiMH battery. So far it works very well for that. It lasts significantly longer than the original batteries. Since power is switchable to 12v, it also found a home powering a game camera and testing 12v circuits in our boat. This ended up on my workbench rather in the box with the equipment I intended it for. It is a better executed than most devices like this I have tried. Well worth the money. Read more

I recently wanted to install some 12 V LED lights to my Teardrop trailer which I built in 2015 and it doesn’t have any electrical in it. It is totally off the grid so when I finally broke down I said to myself I don’t want to invest hundreds of dollars in the solar panels and converters and Batteries and everything else that comes along with it. So I bought two lights and an exhaust fan and this little power bank is perfect for the job. I can recharge it in my car, cigarette lighter and it will run my lights and fan for days at a time. It’s an excellent product. Read more

I bought the 72W 100WH 12V/8300mAh for use with my CPAP a Phillips Respironics System One 60 which takes a 12v 5a input and in testing it lasted more than 2 full nights of use on a single charge with a 7CFM setting on my machine. Compared to the official $250+ batter packs this has a higher mAh rating and costs SIGNIFICANTLY less. It is small and compact and works great. The DC Cable worked directly with my unit, but just in case you may need to get CGTime Car Cigarette Female Socket to 5.5 x 2.1mm Female Jack Adapter Only complaint I have is it takes a LONG time to fully charge and I think it should have come with the cigarette lighter adapter. Read more

This thing works well and had a good price when I bought it. Battery capacity seems very good, too. I like that it has 5 volts output on the USB port, and then two barrel jacks with 9 and 12 volt DC outputs and lots of included cables. It's really convenient for powering tons of things, and it's nice as a backup for charging the cell phone for days during power outages. It can also power almost any telescope and telescope accessories out there for several hours depending on your setup. The only thing that's a bit odd is to charge it, you have to turn it off and plug into the 12v output port, which I guess becomes a charging port when you turn if off. I don't know how it responds to things that are incorrectly wired, or if you tried to charge it without turning it off first. When using less expensive and less known branded products like this, I think it's important not to assume anything and read the instructions carefully. Sometimes, online shopping sites that sell lots of these cheap, imported products like this often do not ensure that the products they sell conform to the same standards and regulations we're used to in the US, so it's up to you to determine if a product is safe and has all the necessary certifications, etc. All in all, I like this product and would likely buy it again assuming the price stays comparatively low. Read more