Harvey51 wrote:
I lost an engine battery at the airport one time. One of us left a dome light on in the scramble to catch a plane. When we came back 2 weeks later, the battery was totally dead, temperature -40. After a boost start, I drove to a store with batteries. Shut the engine off and there wasn't enough power to operate a dome light. Had to install the new battery myself, outside in the cold.
The battery was probably frozen due to the -40 temp. and would not take a charge. You were fortunate to even get the engine running.