Charging issue Sphero 2.0, Disposable used e-cigarette battery in Sphero 2.0 robot ball replacement

The Sphero 2.0 robot was only lasting about 30 seconds before it would die after full charge. I am gonna replace it with disposable used Electronic cigarette's high Amah 3.7v battery and than it will give more than double torque, speed and playtime. I am challenging! you will get tired but the battery will not die, once it is fully charged.

[@ihtishammushtaq5099]

Good