Our good friend Stan Frey GM8ZQY from Glenrothes gave a comprehensive talk on "Battery Types and Behaviours" at the meeting on 14th February - a review of the currently available battery types with an emphasis on lithium-ion rechargeables. And he was thinking about the behaviours of the users as well as the batteries themselves! 

Stan brought many example of battery types and described their behaviours in his very well-prepared talk.