The sockets in my house put out 120V AC, which is plenty to run my chargers!

But seriously, if your can't charge your batteries while plugged into a wall outlet, then your charger's power supply is bad, or your exceeding the chargers intended current or voltage specs.

Most of the better peak chargers require a separate DC power supply, and you'll have to be sure it can put out the current & voltage required by the charger you choose.