The Royal Supply 1300mAh Variable Voltage Large Capacity Batteries are perfect for the heavy user that needs a reliable device for extended use. This battery has an adjustable voltage dial at the base that allows you to adjust voltage according to your specific needs ranging from 3.3V – 4.8V. With a 510 thread, this battery fits all universal 510 thread cartridges. It also comes with three important safety protections: Short Circuit Protection, Atomizer Protection, and Low Voltage Protection. The battery can last up to 16 hours on a single charge.

Technical Specifications:
• Battery Capacity: 1300mAh
• Variable Voltage Setting: Adjustable Dial, 3.3V – 4.8V
• Charger: Wired USB Charger
• Threading: 510 thread
• Voltage : 3.3v-4.8v ( 4 voltage markings : 3.3v , 3.8v , 4.3v , 4.8v )
• Sensitive voltage steps : 0.5V
• Power circuit : 9W
• Working time : 14-16 hours / charge
• USB charger included with each battery

Features:
• LED Light Indicator – The battery LED will blink when switching modes.
• Low Battery Indicator – The LED will blink 5 times indicating that a charge is need.
• Short circuit protection – When short circuit happens, the battery will shut down and not function again until short circuit is removed.
• 5-click On/Off lock feature; Press the button 5 clicks within 2 seconds and activate the battery or turn it off.
• A fully charged 1300mAh variable voltage battery can provide 14-16 hours of use.
• Using the battery at a higher voltage output will drain the battery faster than at a lower voltage. We suggest you to start with a low voltage and increase the voltage gradually until you find the right voltage.
• Safety Cutoff – If you press the button for 10 seconds, the battery will be locked until the next press.
• Low Voltage Protection – When the battery voltage is lower than 3.3v, the battery will shut down. The LED will blink 5 times indicating that a charge is need.
• The device will monitor the battery voltage and automatically turn off when the battery is discharged, preventing damage to the battery by overly depleting it.