Mr Mike
Active member
Was going to mention Li primary AA cells, but got beaten to it. Some of the equipment I make runs on industrial Duracell AA cells, but for cold Arctic countries, I recommend Li due to their low temp operation and high current output that are needed at -20oC or more. Performance side by side is completely different, Li wins pants down as it can deliver sustained relative high current.
See datasheet: https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwj5wvS_-rnuAhVMY8AKHcpuBugQFjAAegQIAhAC&url=https%3A%2F%2Fdata.energizer.com%2Fpdfs%2Fl91.pdf&usg=AOvVaw1P0PLbOMhxLIOA_HQa1qdA
A good source of discounted branded batteries is: https://www.buyabattery.co.uk/
See datasheet: https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwj5wvS_-rnuAhVMY8AKHcpuBugQFjAAegQIAhAC&url=https%3A%2F%2Fdata.energizer.com%2Fpdfs%2Fl91.pdf&usg=AOvVaw1P0PLbOMhxLIOA_HQa1qdA
A good source of discounted branded batteries is: https://www.buyabattery.co.uk/