Battery charger for US - 110V or 220V?

[nukezero]

I'm looking at a custom build for my girlfriend's bike and decided to buy a battery pack from Vpower. It's the cheapest solution and comes with a BMS. It tells me to select either 110V or 220V for the charger. I believe US house holds AC outlet are 110V right?

 

[Ebikebert]

yes, they should be 110 or 120v ac. If your not completely sure get out a multimeter turn it to alternating current and check. hope this helps

 

[chas58]

I would expect the charger to take 100 - 240 volts. It would be odd if it didn't. The biggest issue is that the plugs are different for US vs Europe.

For US, you need 110 volts with the flat plugs.