[i90east]

Thanks to advice from this forum I've been saving a lot of gas by only running the engine during acceleration. However my battery doesn't get charged much and on a cool night recently my battery voltage dropped below 11 while sitting at a light. This is a new battery. I often turn off the brake lights (using e-brake instead) and headlights (unless I'm at the front of the line) at red lights to keep the voltage up. Plus I bump start as much as possible to mimimize starter usage. I have not had a problem starting tbe car yet but I'm concerned of what might happen next winter.

Has anyone who drives like this had their battery drain to the point of being unable to start the engine from a stop? I have a portable battery charger but I'd rather not have to use it while blocking traffic. I'm also wondering if a solar panel charger would significantly help keep the battery juiced.