Gadget Reboot
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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
3,352 views
Varta to CR2032
Replace old leaky 3.6V Varta NiCd batteries in old computers with a CR2032 coin cell
3352
17
4
Published: Mar 14,2023
Standard PCB
Download Gerber file 55
BOM(Bill of materials)
Centroid file
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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.
Only PCB
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