i ordered another one and discovered 5000mah samsung batteries are 26% off as well
21700 Samsung INR2170050E 5000mAh High Discharge Flat Top [illumn.com]
I was just going to post on one of those endless anker deals about how much better one of these was and when I went to the link I found the price is lower than ever.
This device is the leatherman of powerbank/charger devices!
It has a magnetic door which accepts 18650 protected/unprotected and 20700/21700 unprotected batteries and can charge them from any kind of usb charger, PD or QC. It charges each cell individually to balance them. It is also a power bank which allows you to use 1 or 2 (2 required for pd or qc charging) cells to act as a power bank. And it is a 2 port power bank with 1 usb A output and 1 usb C input/output. You can charge two devices at once.
While charging the lion cells you can cycle the display to show overall charging and individual cell charging. It accepts PD 3 or QC 3 input and charges at up to 12v 1.8a
while using it as a power bank you will see the charge percent, as well as voltage and amperage.
the exterior is softtouch, the magnetic door is so trick.
it has a low power mode to charge headphones and other devices that terminate below 50mah
Here is a video, note this video is for the preproduction version that didn't have PD all of released in stored versions have PD 3
and a review
Here is another review
capacity is up to you, i bought some molicell 4200mah 42a you can swap out cells so basically unlimited capacity 2 cells at a time.
here are the full spec's
Xtar's successor to the PB2 has now arrived! The PB2S has added QC3.0 + PD3.0 Fast charging capability, expanded 21700 (unprotected) support, and a USB A + USB C output ports. A new display shows input/output voltage and current.
Type-C Dual-role Fast Charger and Power Bank
Portable Charger with Power Bank Function
QC3.0 + PD3.0 Fast Charging
Supports 18650 protected/unprotected and 20700/21700 unprotected
Precise digital display with more data
Type-C Dual-role fast charging, two port output simultaneously
High quality contacts for less resistance
Secure magnetic cover
Built-in ribbon for convenient battery removal
Low-current charge output mode capable
Input: QC3.0 and PD3.0 (5v 2A / 9V 2A / 12V 1.5A)
Constant Current Charging 2A x 2 / 2A x 1 / 1A x 2
Charge Voltage: 4.20V +- 0.05V
Termination Current: <= 120mA
USB Output: QC3.0 and PD3.0 (5v 2A / 9V 2A / 12V 1.5A)
Operating Temperature: 0-40C
Compatible batteries: 18650 (protected and unprotected), 20700/21700 (unprotected)
NOTE PROTECTED 20700/21700 batteries will not fit due to length.
PB2S, USB-A to USB-C cable, manual
MANUFACTURED BY : Xtar