Gadget Reboot
CANADA • + Follow
Description
Varta to CR2032
Replace old leaking Varta 3.6V NiCd batteries in old computers and other retro devices that used them for battery backup.
This pcb uses a vertical CR2032 battery socket and
- 1n5711 schottky diode (low reverse leakage current)
- LM66100 ideal diode (two silicon parts for safety redundancy)
This prevents the motherboard from trying to charge the battery, allowing the battery to provide backup power to retain settings.
Depending on the motherboard, the battery may or may not also be able to properly retain the clock/calendar settings, but retaining CMOS configuration at least can be very helpful on some motherboards when using them for a while and not wanting to re-enter the configuration on every cold boot.
Schematic and Layout
Design files
https://github.com/GadgetReboot/Varta_To_CR2032
Mar 14,2023
2,212 views
Varta to CR2032
Replace old leaky 3.6V Varta NiCd batteries in old computers with a CR2032 coin cell
2212
10
3
Published: Mar 14,2023
Download Gerber file 41
BOM(Bill of materials)
Centroid file
PCBWay Donate 10% cost To Author
File Last Updated: 2024/04/23 (GMT+8)
File update record
2024-04-2320:40:50
Centroid file is updated.
2024-04-2320:40:50
Parts List (BOM) is updated.
2024-04-2320:40:50
Gerber file is updated.
2023-03-1510:39:23
Parts List (BOM) is updated.
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