2pack 9V (Activenergy), original packing, bb 01/2025, both tested as 9V
2 rechargeable 1.2V (Energizer) AA, no bb, both tested as 1.14V
2 LR14 1.5V (Tesco), bb 10/2008, both tested as 1.5V
1 D format E95 1.5V (Energizer), original packing, bb 2013, tested as 1.5V