* US * wrote:
Did a stupid thing and ran down the battery. Now it's on a 12V 2/6
amp charger. Every two hrs., I remove the charger from the AC source,
negative ground clamp, and positive clamp and attempt to crank the
engine.

Is is necessary for safety purposes to disable the charger, or can I
leave it connected while testing to see if the engine cranks over?


Leave it connected. The extra boost it provides may enable you to start your
machine before the battery is fully charged.