Nothing about it on the manual.

Called up Toshiba service center, and she said it should be charged 18 HOURS!!!

Is that true?

Does that sound correct?

Certainly an overnight charge with the PC switched off, it guarantees a full charge so the smart electronics in the battery can keep tabs on the charge level

Certainly an overnight charge with the PC switched off, it guarantees a full charge so the smart electronics in the battery can keep tabs on the charge level

It's been charging for an hour and a half, and the battery indicator is already green.

I just let it continue to "charge" for another 16 hours?

Won't it get overloaded or something?

Certainly an overnight charge with the PC switched off, it guarantees a full charge so the smart electronics in the battery can keep tabs on the charge level

It's been charging for an hour and a half, and the battery indicator is already green.

I just let it continue to "charge" for another 16 hours?

Won't it get overloaded or something?

Not a problem. The charging electronics switches automatically the charge current rate. When fully charged it will just be trickle charging.