ampguy
Veteran
Hi Roger
Hi Roger
I was using specs. from the big names - Duracell, Energizer, Varta, where the LR44s are generally about 110 mAh, and SR44s 150-165 mAh. Wouldn't be surprised if the high volume lesser names didn't stack up.
If price is no object, it seems that the designed for camera stacked 1/3N 3V cells at 160 mAh (duracell) and 190 mAh (energizer) lithiums, the latter that operates at -40 to +60C, and retains 90% of initial power in 10 years sitting idle, are the way to go where the stacked 1/3N size works, as stacked series 1.5 LR44 or SR144s double voltage, but keep the same mAh of 110-165 mAh, and as noted, some alkaline formulations can drop faster than silver oxide (not such a green solution either), or lithium.
I would not be surprised if silver oxide eventually goes the way of Mercury and NiCads as advanced NiMH (pre-charged, LSD, etc.) and Lithium products (work great in extreme temps) become more efficient and ways to recharge and recycle them become more widely available.
Hi Roger
I was using specs. from the big names - Duracell, Energizer, Varta, where the LR44s are generally about 110 mAh, and SR44s 150-165 mAh. Wouldn't be surprised if the high volume lesser names didn't stack up.
If price is no object, it seems that the designed for camera stacked 1/3N 3V cells at 160 mAh (duracell) and 190 mAh (energizer) lithiums, the latter that operates at -40 to +60C, and retains 90% of initial power in 10 years sitting idle, are the way to go where the stacked 1/3N size works, as stacked series 1.5 LR44 or SR144s double voltage, but keep the same mAh of 110-165 mAh, and as noted, some alkaline formulations can drop faster than silver oxide (not such a green solution either), or lithium.
I would not be surprised if silver oxide eventually goes the way of Mercury and NiCads as advanced NiMH (pre-charged, LSD, etc.) and Lithium products (work great in extreme temps) become more efficient and ways to recharge and recycle them become more widely available.
Sorry, I was using 'evaporate' in a more figurative sense, i.e. that they do not last anything like as long. I was surprised to learn from your post that SR44 batteries have only about 30% more mAh than LR44; from experience of battery life in Leica (MP) and Voigtländer (most) I'd assumed it was much greater.
Cheers,
R.