A4000CR (Rev D) coin battery replacement

alexh · 10 February 2020, 09:57

Hi,

I've got an A4000CR which has a CR2335 coin battery fitted from the factory.

Anyone with the same motherboard had any experience of replacing it? Maybe with a coin cell socket?

IIRC it comes from the factory without a coin cell holder instead it is soldered to the motherboard and cannot be replaced without soldering?

I seem to remember that the space on the motherboard should take a standard coin-cell battery holder?

Any feedback appreciated before I strip it down and get the soldering iron out.

torsti76 · 10 February 2020, 10:20

A "standard" coin cell holder won't fit, because there really is no standard. The distance between the pins of the holders vary from manufacturer to manufacturer.

There are, however, adapters that use a small PCB below the holder. That's the thing you should be looking for.

alexh · 10 February 2020, 12:41

Thanks for the feedback.

I wonder if anyone has the A4000CR PCB layout files? Or has one available and can measure me the distance between the pins?

I'll be able to do it myself in a few days time but it would be nice to get a part ordered today.

johnnybarker · 11 February 2020, 17:55

I have an a4000 Rev D motherboard. The coil cell adapter from Amigakit fits fine. I replaced mine about 2-3 months ago.

10 February 2020, 09:57	#1
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,332	A4000CR (Rev D) coin battery replacement Hi, I've got an A4000CR which has a CR2335 coin battery fitted from the factory. Anyone with the same motherboard had any experience of replacing it? Maybe with a coin cell socket? IIRC it comes from the factory without a coin cell holder instead it is soldered to the motherboard and cannot be replaced without soldering? I seem to remember that the space on the motherboard should take a standard coin-cell battery holder? Any feedback appreciated before I strip it down and get the soldering iron out. Last edited by alexh; 10 February 2020 at 12:37. Reason: Wrong battery number

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10 February 2020, 10:20	#2
torsti76 Registered User Join Date: May 2018 Location: Germany, Baden-Wuerttemberg Posts: 387	A "standard" coin cell holder won't fit, because there really is no standard. The distance between the pins of the holders vary from manufacturer to manufacturer. There are, however, adapters that use a small PCB below the holder. That's the thing you should be looking for.

10 February 2020, 12:41	#3
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,332	Thanks for the feedback. I wonder if anyone has the A4000CR PCB layout files? Or has one available and can measure me the distance between the pins? I'll be able to do it myself in a few days time but it would be nice to get a part ordered today.

11 February 2020, 17:55	#4
johnnybarker Registered User Join Date: Dec 2018 Location: Helmsdale Scotland Age: 41 Posts: 181	I have an a4000 Rev D motherboard. The coil cell adapter from Amigakit fits fine. I replaced mine about 2-3 months ago.

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