hi all must admit i have only been doing short trips, last week battery did not have enough grunt to start car,

so purchased charger /fully charged battery and refitted a few more short trips local car parts dealer checked out battery and charging circuit

and thought battery was a bit low,might be possible that something was draining battery ,he suspected rear boot light (which i have removed bulb)

now slightly apprehensive i might not be able to start car if something is amiss not sure how i can check the amount of charge in the battery, i have a multimeter but not sure what i set it too (ac or dc) do i disconect negative terminal ? and what should the battery voltage read,

this is so i can get some idea whether battery is holding /loosing charge


thank you