Will a 24 volt 1200 VA inverter charge an e bike?

[RonAdams777 (Ronnie)]

So i want to charge my E bike wich is 72 volts at 10amps = 7200 watts x 6 hours = 43 kwh… is that correct? That seems really high. So 43000 wh so thats alot of power. If my math is correct ill need 12 300 AH lifpo4 batteries series to 24 volts 2s3p just to charge one E bike? Is this math making sence or am I tripping. This seems like alot of power. I really would like to charge two E bikes. Any help or advice would be appreciated. So even 200 amps of solar wouldn’t get this done. Id definatley need to build up my battery bank for just one E bike. Wow I didnt realize they were so power hungry until now. Or is my math wrong?

Also running 2 Victron 250 / 100 mppt’s with 8 400 watt solar pannels total. Currently have 2 300 AH batteries in series making it 24 volts. 7200 wattts. Im still very new so im not sure my math is mathing.

[DuivertNL (Marc)]

Yes your maths are wrong 72V x 10A = 720W

[lxonline (LX)]

Can victron 24 1200 va inverter power my E bike?

Ok so i figured out my mistake. 10 amps x 72 volts is 720 watts x 6 hours of charging = 4320 watts. Ok that makes alot more sence. So my Victron system will charge my E bike in its current configuration. 2 300 ah batteries in series is 7200 watts so will a 24 1200 VA inverter charge that for that long even though its only 1000 watts?

Whats going on here? Have things changed since this post?

@RonAdams777

So i want to charge my E bike wich is 72 volts at 10amps = 7200 watts x 6 hours = 43 kwh… is that correct?

With the same calculation issue which was realised back then?

72x10 is 720W that x 2 is 1440watts plus losses and maybe power factor for the battery chargers for a bit more headroom on the inverter is needed.

@RonAdams777

250 / 100 mppt’s with 8 400

3200 watts of solar depending on where you are and irradiance there, it should be plenty to run the chargers