I had a few types of batteries around, specs below:
- 3.7 V, 500 mAh lithium ion polymer Battery
- 1.85 watt hours, 6660 joules
- 1.5 V, 2700mAh AA alkaline battery
- 4.05 watt hours, 14580 joules
- 3 V, 235mAh lithium coin cell battery
- 0.705 watt hours, 2538 joules
The calculations were computed with the help of the Google search bar.