OK, I learned something today form a professional publication.
Of particular note is that industrial batteries may have a glass to metal seal vs a crimped seal. The crimped seal leaks.
Some Lithium Industrial batteries boast, low self-discharge, the ability to be recharges at extreme temperatures (-40 + +85 C). AA sized cells can deliver 15 A pulses and glass to metal seals 20 year life and 5000 cycles.
Maybe thats what I get better life from industrial Ni-Cd's although Lithium an Alkaline were the focus of the article. FWIW, the AA cell was developed for flash cameras.
Labor costs can be significant when replacing batteries in remote areas.
Information obtained from Electronic Products, Dec 2014, "Total Lifetime vale: A yardstick for comparing batteries", Jacobs, Sol, p 12
Of particular note is that industrial batteries may have a glass to metal seal vs a crimped seal. The crimped seal leaks.
Some Lithium Industrial batteries boast, low self-discharge, the ability to be recharges at extreme temperatures (-40 + +85 C). AA sized cells can deliver 15 A pulses and glass to metal seals 20 year life and 5000 cycles.
Maybe thats what I get better life from industrial Ni-Cd's although Lithium an Alkaline were the focus of the article. FWIW, the AA cell was developed for flash cameras.
Labor costs can be significant when replacing batteries in remote areas.
Information obtained from Electronic Products, Dec 2014, "Total Lifetime vale: A yardstick for comparing batteries", Jacobs, Sol, p 12