TalentCell 12V LiFePO4 Battery Pack LF4100, 2000 Cycles Rechargeable 12.8V 6000mAh 76.8Wh Lithium Iron Phosphate Battery with DC 12/9 volt and 5V USB Output for LED Strip, CCTV Camera, Mobile and more

I've been keeping my home online through power outages with these for years now. Much safer than Li-Ion cells.

Someone else on an Amazon review recommended this for powering their Celestron scope instead of the short-lived internal alkaline batteries. I am very pleased with the value, the relatively small size, and the option to supply both 12-14V DC output as well as 5V for USB. Although this is a lithium battery, it is the much safer LiFePO4 chemistry that won't catch fire and can be recharged many more times than lithium ion or Li-Poly types. I'm a big fan of this stable and reliable battery chemistry.I also prefer the simple green 4-LED bar graph to others that I've seen or used that show percent of charge on a display, or have a blue LED or two without much else. This one gets the job done and doesn't waste energy powering a backlit display. It's also much easier to read at a quick glance, and doesn't throw off lots of light, which is what I need for night telescope viewing. I tied it to my scope's eyepiece holder tray with a bungie cord, and it's there to stay.I have no reservations about recommending it. Great combo of price, size and function. It's also safe to carry on airlines (assuming they understand the differences in lithium battery types).

I bought this TalentCell battery pack to run my Masterbuilt Gravity Series 1050 smoker. The battery pack has worked flawlessly for three years, and many of my cooks are 12+ hours. Recharge time is fast, too. I've recommended this unit to friends with gravity-feed smokers requiring 12-volt power, and everyone likes it.

Would be improved with charge percentage display. Must be charged on AC (says that up front) so not as versatile in charging. But, it does supply more-than-good-enough, steady 12V for 5.5x2.1 male to cigarette lighter female to flush automobile USB-c PD charger. Comparatively compact. There's a complaint about not solar charging...it's not designed or advertised for that...get a Jackery or similar if that's your application. If you want a very portable 8 hour power supply for remote laptopping, this works.

I use the TalentCell 12V LiFePO4 Battery Pack in my garage to back up my 12 volt ONT for any power outages. Very well designed and easy to use. It comes with exactly the right cabling and power supply that I needed.

A while to find a replacement battery for my O2 portable tank. Value for the money nice.battery life-4 hours. Easy to use. Size is OK. Functionality is great.Thank you. Regina

Great portability, long lasting battery. I have a couple of radios that have no on/off switch but this battery has one which makes it so much more convenient that plugging in and unplugging a power connector every time you turn the radio on. I have this battery and the 2 smaller ones like this made by TalentCell and use them at home and in the field. Well made and durable.

With a 5.5x2.1mm Car Charger Cigarette Lighter Power Supply Adapter providing the input and a USB 1 To 4 Splitter Charger Cable Power at the output, I have a dashcam and GPS powered by this, with outlets for cell phone chargers, etc. The cigarette lighter turns off when the car is turned off, and the devices stay powered for at least a day when the switch on the device is "on". A very helpful feature is that when the switch on the device is "off", power from the car feeds through it while the car is running, thereby powering the devices; and they turn off when the car is turned off. The latter is the normal operating mode. However, when I am running errands, I leave the device "on" so that the dash camera continues recording and the GPS is ready to navigate.