Varta NiCad to CR2032
Replace leaky Varta 3.6v motherboard backup battery with CR2032, 1n5711 and LM66100
PCBWay Supports High Precision Advanced PCBs: https://www.pcbway.com/
PCBs at PCBWay https://www.pcbway.com/project/sharep...
Design files https://github.com/GadgetReboot/Varta...
Battery Measurements with New Battery Apr 10 2024
Apr 10 Battery: 3.23v Output after diodes: 3.08v
Apr 22 Battery: 3.00v Output after diodes: 2.85v
May 11 Battery: 2.99v Output after diodes: 2.84v
Jun 09 Battery: 2.985v Output after diodes: 2.83v
Jul 18 Battery: 2.96v Output after diodes: 2.77v
Aug 13 Battery: 2.96v Output after diodes: 2.75v
Sep 10 Battery: 2.937v Output after diodes: 2.713v
Oct 10 Battery: 2.538v Output after diodes: 2.318v ---starting to drop
LM66100 Ideal Diode https://www.ti.com/lit/ds/symlink/lm6...
1N5711 low rev leakage diode https://www.mouser.com/datasheet/2/38...
Coin cell reverse charging protection info
https://www.renesas.com/us/en/documen...
https://industrial.panasonic.com/cdbs...
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