Just bought a new Lionel 6-19820 Railsounds 2 die cast tender to use with my faithful 2037. It requires a 9v battery and I was wondering if a "BCR" type capacitor will work fine or is a 9v alkaline best. I am concerned about leakage so if the regular 9v is best isn't there a type of 9v that DOSN'T leak? I know there is one ( Lithium? ) but for the life of me I can't remember what type that was. Please advise.
Also any comments about above tender, or advice, would be most appreciated...With many thanks.