store energy
The store energy of tokamaks is always in kJ. It's is not a familiar unit. So we change it to kWh and Ah of 3.7V lithium battery.
Parameters
Store energy
w
\(J\)
Output
killo-watt hour
`1kWh=3.6MJ`
Lithium battery
'1Ah x 3.7V=3.7Wh=13.32kJ'