Anker PowerCore III Sense 20K USB-C Portable Battery Charger - Black

Everyone at work ask to borrow it. Its a must have for work, ER visits, and long days of errands. You don't have to worry about finding an outlet. I like being able to charge up my phones and little gadgets with piece of mind. It also charge devices pretty quickly.

Unit fast charging out of the box, even with one of my Anker cables I had on hand. Charged my phone efficiently when it was down to 12%. Size is portable while slightly heavyweight. Kept almost full charge power after 1 week of no power source connection.

Both me and one of my family members have one, and we are happy with them. One is utilized to charge a phone on the go. Mine is used for powering on a USB heat pad/belt. I have a USB charger that tells me the power level, depending on the USB C device used, and the battery itself will only charge at 5v 3A. My brick can deliver 5, 9, 12-15, and 20v on USB Power Delivery, and will show the color LED depending on what was negotiated. The battery will only request/charge at 5v, and it does take a while for it to be charged. However, when devices are plugged into the type C port, it does have quick charge, which is nice. I cannot measure the output of the battery, but I know my phone says it charges fast, and my heated belt needs at least 2A to work, which the battery happily provides, without overheating, like other batteries I have.

This battery works well, and feels sturdy and well made. I chose it over the others because of the brand's reputation.

This is a very good charger. Used it for my trip to Europe. Lasted a couple days on one full charge. Was able to keep my iPhone and iPad fully charged. Will be buying another as a gift for my daughter.

Very reliable company

I had a $46.10 portable battery charger missing from my delivery. When I called they said they couldn't send it with another driver. I was refunded $4.37 which is a far cry from $46.10. I had also ordered a box of personal pads which weren't even bagged just sitting at my front door to be seen on a very busy street. Thank you for letting everyone driving on my busy street know that I'm on my period. Don't do delivery!

I cannot get this device to take a charge. I love anker products, this one is not working after 36 hours of being plugged in pre- trip.

does not work to well. After 2 - 5 minutes, it turns off completely.

Very slow charge for Samsung S21.