A battery operated laptop will normally be supplied with a battery fitted and this battery will be charged/recharged while the laptop is plugged into the mains. In other words the charger is in the laptop.
the battery charger and the charger are the same thing. the charger charges the battery and the laptop runs off the power from the battery.hope this helps
No, you need the battery or there'll be nothing to charge the laptop with! Yes, i can run my laptop without battery and just plug the adapter. And i do so for a month until recently got a new...