The Yocan Flat Series of batteries is another 510 Thread battery series from Yocan. This battery fixes a problem you have most likely experienced, but may not know you have.  The flat sides prevent this battery from rolling off of flat surfaces inadvertently.  You can choose between 4 different sizes ranging from 350mAh to 900mAh.  The batteries have variable voltage and a convenient preheat function.  You can top off the charge quickly with USB C charging.  

*****Please Note:  This device DOES NOT come with a charging cable.  Any USB-C charging cable will work.  We recommend using charging blocks that are 1 Amp.  Using a fast charging charge block may damage the battery.*****

USB C Charging Cables are available separately.  

Features
Variable Voltage
Preheat
USB C Charging

Specifications
Battery Capacity:  Slim - 350mAh, Mini - 400mAh, Flat - 650mAh, Plus - 900mAh
Battery Charge Type:  USB C
Compatible Resistance:  >0.8Ω
Voltage Levels:  2.6V - White, 3.2V - Green, 3.8V - Red
Preheat Level:  1.8V
Preheat Duration:  10 Seconds
On/Off:  5 Clicks In 2 Seconds
Change Voltage:  Click Button 3 Times Quickly
Preheat On/Off:  Click Button 2 Times Quickly

In The Box
1 Yocan Flat Series Variable Voltage Preheat 510 Thread Battery