Pure sine wave inverter suggestions?

Geewizard wrote:
I need to charge an electric dirt bike. Its charger is AC only and I will pay the extra for a pure sine wave inverter

Chargers often have a power factor of 30% so if the rating is over about 750 watts you will need to go a bit more on the inverter.

And chargers are often rated by output watts in which case add another 20% for input.