Hmm. I have a military silver zinc charger on the shelf in the Junquyard. Going 
to have to have another look at it and see where they hid the Airman, LoL. Dach

"Do what you can, with what you have, where you are" - Theodore Roosevelt “We 
reached the old wolf in time to watch a fierce green fire dying in her eyes 
.... I was young then, and full of trigger-itch; I thought that because fewer 
wolves meant more deer, that no wolves would mean hunters’ paradise. But after 
seeing the green fire die, I sensed that neither the wolf nor the mountain 
agreed with such a view.” - Aldo Leopold 

    On Saturday, October 6, 2018, 5:45:44 AM MST, Bill Collins via EV 
<[email protected]> wrote:  
 
 Re Silver Zinc batteries: I worked on a charging system for the U2 aircraft 
that replaced the manual procedure used to charge the silver zinc battery that 
provided backup power in case the primary electrical systems failed. If the 
battery was used in flight, they would take it out of the aircraft and recharge 
it on the bench, using an Airman with a voltmeter as a BMS!

As I recall, the cells were rated for 10 charge/discharge cycles and a calendar 
life of around a year.

Bill
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