UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Refugee · 25th Jun 2018, 9:23 pm

Most of those button cell stacks have indeed aged badly now.
For 12 volts an SLA could be used if you can find one that is small enough to fit in there.
Lithium cells are like SLAs with a much tighter cut off voltage.
Float charging will kill them so you would need to research charge control chips that have the correct sensor for the cells you use.

25th Jun 2018, 9:23 pm	#11
Refugee Dekatron Join Date: Apr 2012 Location: Worksop, Nottinghamshire, UK. Posts: 5,553	Re: 15V NiCad Battery Most of those button cell stacks have indeed aged badly now. For 12 volts an SLA could be used if you can find one that is small enough to fit in there. Lithium cells are like SLAs with a much tighter cut off voltage. Float charging will kill them so you would need to research charge control chips that have the correct sensor for the cells you use.