john gennard wrote:
a. Is it harmful to use the Laptop with Adapter
without any battery on board?
My laptop (used Thinkpad 390 from E-bay with DOA battery) required that the battery, even though totally dead, be in the laptop to run off of the adaptor. Without the battery, the circuit was open. Whether this could be harmful to the laptop, I dont know. I got a replacement battery for it. It did not seem to hurt the laptop in the meantime, however.
-- Marc Shapiro mshapiro_42@yahoo.com