I have an IBM R40 ThinkPad which simply stopped charging the battery. I presumed the battery was worn out and just bought another battery yesterday.
Followed instructions for charging the new battery (charge for 4 hours, then discharge completely for 5-6 cycles) but after 12 hours, the battery would only support the thel laptop for a couple of minutes. Tried to charge the battery again but no charge in battery.
Any suggestions about what the problem is.?????