Boundless Technology TERA Manual Del Usario página 23

The unit can also be charged via
USB or directly to the wall through a
18650 battery charger. Charging
time for the Tera on average is
about three hours(*Connected with
2A Current Output Charger). On a
full charge the Tera should last for
about ten continuous sessions at
the highest temperature setting.
The screen should illuminate with a
battery symbol once plugged into
the charger.
It is not advised to use the Tera
while charging.
Also, to prevent from overheating
do not leave the unit charging
overnight.
Do not leave the unit unattended
while charging.
Do not leave device charging on
bare carpet or rug.
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