@geekylou
I've used AA size lithium rechargeables - 3V6 - with dummy cell(s). Seems to work well, with 1 lithium replacing either 2 or 3 alkaline. The voltage range is either a bit overvoltage with 2:1, or just on the low end with 3:1, but nothing exceptionally 'wrong'.
I've used AA size lithium rechargeables - 3V6 - with dummy cell(s). Seems to work well, with 1 lithium replacing either 2 or 3 alkaline. The voltage range is either a bit overvoltage with 2:1, or just on the low end with 3:1, but nothing exceptionally 'wrong'.