Chosen Solution

With the battery removed and the charger connected, is there any reason why the terminal posts where the battery would be attached should show 0.0 voltage? My logic suggests there should be some sort of charging voltage??

Hi @jeppes , This is only supposition on my part but perhaps the battery management system in the tablet needs to detect that there is a battery present (perhaps by detecting a current flow out of the battery and into the load) or detecting that there is a preset minimum battery voltage level before it turns on the charging voltage. Here is a link that may be of some interest.