Does the outside temperature affect batteries? How?
Yes. If the batteries are too hot (1050F or higher) or too cold (below 400F), the batteries will not take a full charge. Attempting to charge batteries outside the 400F-1050F range can result in a permanent loss of runtime. When batteries are being charged and discharged a chemical reaction is taking place, and if it is too hot or cold the chemical reaction is disturbed causing a loss of runtime.