Mr Happy
Flashlight Enthusiast
All joking aside, you can be assured to know that there is no free liquid electrolyte in an NiMH cell. The electrolyte is absorbed into a porous membrane and held there by surface tension. It cannot move around under gravity and the orientation of cells in charging or discharging will make no difference.When I asked if the charging position is critical due to the electrolyte, I would think the discharge position would also be critical. I also said that my camera uses 4 AA cells, two upright & two upside down. Does this mean they are going to discharge differently?
For reasons that I can't remember at the moment the amount of water included in an NiMH cell is reduced to the absolute minimum with no excess at all. This is why any venting of a cell, for example if it gets too hot on overcharging, is an irreversibly bad thing. There is no surplus of water inside to compensate for any losses.