CR1632 battery replacement problem on TrueNAS motherboard

Hi everyone,

I recently checked my TrueNAS server motherboard and found that the CMOS battery (CR1632) has low voltage and may need to be replaced. But CR1632 is not a particularly common model, so I have a few questions for you:

Can CR1632 be replaced with CR2032 or other more common batteries? If so, what adjustments need to be made?

What is the main function of this battery in the TrueNAS server motherboard? Will it affect the BIOS settings after replacement?

Is there any recommended CR1632 brand, or which channels can be more convenient to purchase?

Thanks for your help! :blush:

Obviously… size (‘16’, ‘32’, ‘20’ are measurements). Find the right one. There must be some specialist shop in your country with all sorts of exotic batteries.

As always it preserves BIOS settings and system clock, so replacing the battery will reset everything.

Thanks :grin:

nor 2032 and 1632 are 3v, but imho i don’t think will be a good idea trying put a bigger battery into a smaller slot just because changes need will be for sure more invasive than the opposite operation.
I don’t know where you come from, but online are easily reperible, if you choose a seller that don’t apply ship costs the expense must be legit (3-4€ each 5)

Sure, it isn’t as common as a 2032, but it’s hardly rare–Amazon has them, starting at about a dollar each. Aliexpress has them. So do regular electronics suppliers like Newark/Farnell. Heck, the company you identify in your profile picture sells them:
https://www.bettlink.com/product/panasonicbsg-cr1632-5770331

It would be electrically compatible, but I don’t think anyone here is going to walk you through modifying your motherboard for this purpose.

They’re going to depend on where you live, but any of the ones I listed above–again, including the company you name in your profile picture, and thus the company for which I presume you work–can easily source them.

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Thank you for your advice. The picture of my profile is automatically generated, and I don’t know who has registered. The information you provided to me is very important. I also compared several prices and have already purchased it here. I look forward to the results later.