Charging your E-bike via an inverter and a 12v battery

[Karman de Lange]

The rating of the inverter will give the size of the load it can sustain and possibly also a burst rating for a short time, that will generally be in Watts.

 

There is also a VA rating, applicable to 'active' loads where current does not flow in sync to voltage, that will be higher that the Watts.  This is Apparent Power not Real Power. This rating is needed if you want to run something with a magnetic coil like a motor (ie pump) BUT there is also inrush current to deal with, which is just when the motor gets power in the initial current is very high for a like  a few milliseconds, but this is where most inverters will come short.

 

Just adding to this

 

Make sure you check output rating , some  inverters list the input rating, which is about 10-25% more than output depending on quality of unit.