K-30 internal battery / capacitor replacement for clock

ekip · 11-06-2017, 08:51 AM

Has anyone replaced the internal cell that keeps the camera clock running? My K-30 started by pausing time when the main battery was removed and resetting time if it was out too long, now it resets the time even when I swap batteries as fast as I can.

I see conflicting reports that it's either a rechargeable lithium cell or a supercap on the main board? Has anyone successfully changed theirs?

http://www.sii.co.jp/en/me/datasheets/ms-rechargeable/ms414ge/

https://www.digikey.com/product-detail/en/DCK-3R3E204T614-E/604-1078-ND/1658299

maw · 11-08-2017, 03:38 PM

Hi all,

Originally posted by ekip

Has anyone replaced the internal cell that keeps the camera clock running?

I do not know where is it, the battery or cell, but I have a similar problem, every time I replace the battery, I have to reset the date and time. I don't know if it can be resolved, or if I have to send it to the service center. Nobody has ever had such a problem?

photolady95 · 11-08-2017, 06:10 PM

My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours, after which I reinstalled the battery and no more time problems. You should try this before spending money on an expensive repair. HTH

maw · 11-08-2017, 06:40 PM

Originally posted by photolady95

My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours,

Thanks for the suggestion, I will try as you said. It is to be said that only the old digital cameras had to replace the buffer battery.
For example, it was indispensable in the first Pentax *istD.

photolady95 · 11-08-2017, 07:27 PM

In my theory to removing battery and leaving it out, was akin to resetting the cmos battery in a computer.

ekip · 11-09-2017, 03:45 AM

Originally posted by photolady95

My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours, after which I reinstalled the battery and no more time problems. You should try this before spending money on an expensive repair. HTH

Thanks, I'll give it a try

Stag beetle · 11-10-2017, 12:43 PM

My K-3 had the same problem. None of the other functions were affected, but the lack of correct date and time messed up my indexing.
With just twelve days of Warranty remaining, I contacted RICOH/PENTAX, and sent it off to their official repairers, NIKKEN Techno France in Paris, and am expecting it back on Monday 13th.
I guess that the lesson here is, if there's something wrong with the camera, get it fixed straight away, and don't leave it until the last minute, as I did.

maw · 11-10-2017, 01:42 PM

Hi all,

Originally posted by photolady95

I removed the battery and left it out of the camera for 24 hours,

I have tried, leaving the camera without battery for over 24 hours, unfortunately nothing happened, the K-30 has no buffer battery,
so the problem is to be found elsewhere. I do not know, perhaps writing to assistance in Italy (FOWA), they will tell me what to do.
I know the answer, "send us the camera"
Otherwise, the alternative is to leave it all this way and when I replace the battery, reset the date and time, simple no?

Pyroburner69 · 04-26-2018, 01:49 PM - **2 Likes**

Hello,
I know this is an old thread but I stumbled across it and wanted to add a little in case anyone else finds themselves with a similar issue.
My understanding is that if this was a cap it shouldn't fail in this way. Maybe supercaps are different but in theory caps should last longer then the mechanical bits of the camera itself before they fail unless they are electrolytic.

With that I am going to assume this is a battery but I will try and prove that later. Thank you to the OP for the battery can cap links. I haven't been able to find anything else online about them yet. I did however find a video of a k-50 being broken down for the battery. (

You Tube

) If hyperlinks do not work on this site search youtube for "How to repair DSLR Pentax K-50 - exchange memory battery" At 4:30 it shows the battery.

I emailed pentax to see what they have to say. My guess is send it to us and we will fix it. The online estimate was $200 bucks and at the price I feel like I'm better off replacing the camera.

I love my K-30 and I don't really want to replace it as it has good resolution and I feel like it has a lot of life left in it. With this video I plan on pulling mine apart and trying to find a replacement battery. My batteries die so fast if left in the camera I feel this is worth replacing if its a fix.

I will add more information once I get back from my trip and pull the thing apart.

maw · 04-26-2018, 03:30 PM

Originally posted by Pyroburner69

The online estimate was $200 bucks and at the price I feel like I'm better off replacing the camera.

Hi Pyroburner69,

Thanks for the video, very informative, but does not specify what type of battery is needed, in case I wanted to venture in the disassembly and reassembly of the K-30.

I think I'll keep it like this, after all it is perhaps easier to reset the date and time. Always better than sending it for assistance.

billwe · 12-13-2019, 06:28 AM - **2 Likes**

A couple of months ago I started having the aperture block problem giving me dark pictures. About the same time I started having a problem with the internal time resetting whenever the battery died or was changed. So if I was going to open my K30 I figured I would tackle both problems.
I replaced the solenoid to fix the dark pictures.
For the time problem I found this video showing the repair.

You Tube

He lists the part number from Digi-Key as 604-1078-ND. It cost me about $7 with shipping. The soldering was a bit of a challenge since it is a small surface mount device. I also had to be careful not to bump the other nearby components and really mess things up. But I managed to get it soldered correctly and it fixed the problem.

ekip · 12-17-2019, 09:17 AM

Originally posted by billwe

A couple of months ago I started having the aperture block problem giving me dark pictures. About the same time I started having a problem with the internal time resetting whenever the battery died or was changed. So if I was going to open my K30 I figured I would tackle both problems.
I replaced the solenoid to fix the dark pictures.
For the time problem I found this video showing the repair. Pentax K30 Backup battery replacement - YouTube

He lists the part number from Digi-Key as 604-1078-ND. It cost me about $7 with shipping. The soldering was a bit of a challenge since it is a small surface mount device. I also had to be careful not to bump the other nearby components and really mess things up. But I managed to get it soldered correctly and it fixed the problem.

Did you happen check what was written on the old one?

billwe · 12-17-2019, 06:25 PM

I don't remember. But doing a search for digi-key and that part number gives: Manufacturer Elna America

Manufacturer Part Number DCK-3R3E204T614-E

Description CAP 200MF -20% +80% 3.3V SMD

**marcusBMG** · 05-10-2020, 08:10 AM - **2 Likes**

The spec for the battery is: 6.8mm, 3V, 3mAh with fitment prong. Manf part number MS621T. Seems pretty readily available online. The MS series are lithium rechargeable batteries use silicon oxide as the anode and a lithium manganese composite oxide as the cathode.

https://media.digikey.com/pdf/Data%20Sheets/Seiko%20Instruments%20PDFs/MS621T.pdf

**photogem** · 05-11-2020, 09:45 AM - **1 Like**

Yes, the MS612T does fit, it is slightly larger than the MS414 which is the original and it is a lithium rechareable battery.

This one:

Originally posted by billwe

I don't remember. But doing a search for digi-key and that part number gives: Manufacturer Elna America
Manufacturer Part Number DCK-3R3E204T614-E
Description CAP 200MF -20% +80% 3.3V SMD

is a supercap and DOES NOT WORK!

I have tried it, the only thing that happens is that the D-LI109 battery drains very quickly!

I then installed the MS612 and all was fine

11-06-2017, 08:51 AM	#1
ekip Forum Member Join Date: Apr 2016 Posts: 68	K-30 internal battery / capacitor replacement for clock Has anyone replaced the internal cell that keeps the camera clock running? My K-30 started by pausing time when the main battery was removed and resetting time if it was out too long, now it resets the time even when I swap batteries as fast as I can. I see conflicting reports that it's either a rechargeable lithium cell or a supercap on the main board? Has anyone successfully changed theirs? http://www.sii.co.jp/en/me/datasheets/ms-rechargeable/ms414ge/ https://www.digikey.com/product-detail/en/DCK-3R3E204T614-E/604-1078-ND/1658299

11-10-2017, 12:43 PM	#7
Stag beetle New Member Join Date: Oct 2016 Location: South of France, Forest. Posts: 14	Repair under Warranty My K-3 had the same problem. None of the other functions were affected, but the lack of correct date and time messed up my indexing. With just twelve days of Warranty remaining, I contacted RICOH/PENTAX, and sent it off to their official repairers, NIKKEN Techno France in Paris, and am expecting it back on Monday 13th. I guess that the lesson here is, if there's something wrong with the camera, get it fixed straight away, and don't leave it until the last minute, as I did.

05-11-2020, 09:45 AM - 1 Like	#15
photogem Site Supporter Join Date: Apr 2015 Posts: 3,520	Yes, the MS612T does fit, it is slightly larger than the MS414 which is the original and it is a lithium rechareable battery. This one: Originally posted by billwe I don't remember. But doing a search for digi-key and that part number gives: Manufacturer Elna America Manufacturer Part Number DCK-3R3E204T614-E Description CAP 200MF -20% +80% 3.3V SMD is a supercap and DOES NOT WORK! I have tried it, the only thing that happens is that the D-LI109 battery drains very quickly! I then installed the MS612 and all was fine Last edited by photogem; 05-11-2020 at 08:18 PM.

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11-08-2017, 03:38 PM	#2
maw Pentaxian Join Date: Feb 2014 Location: Sassari (Italy) Posts: 1,118	Hi all, Originally posted by ekip Has anyone replaced the internal cell that keeps the camera clock running? I do not know where is it, the battery or cell, but I have a similar problem, every time I replace the battery, I have to reset the date and time. I don't know if it can be resolved, or if I have to send it to the service center. Nobody has ever had such a problem?

11-08-2017, 06:10 PM	#3
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours, after which I reinstalled the battery and no more time problems. You should try this before spending money on an expensive repair. HTH

11-08-2017, 06:40 PM	#4
maw Pentaxian Join Date: Feb 2014 Location: Sassari (Italy) Posts: 1,118	Originally posted by photolady95 My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours, Thanks for the suggestion, I will try as you said. It is to be said that only the old digital cameras had to replace the buffer battery. For example, it was indispensable in the first Pentax *istD.

11-08-2017, 07:27 PM	#5
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	In my theory to removing battery and leaving it out, was akin to resetting the cmos battery in a computer.

11-09-2017, 03:45 AM	#6
ekip Forum Member Join Date: Apr 2016 Posts: 68 Original Poster	Originally posted by photolady95 My Blue K-30 had the same problem. I removed the battery and left it out of the camera for 24 hours, after which I reinstalled the battery and no more time problems. You should try this before spending money on an expensive repair. HTH Thanks, I'll give it a try

11-10-2017, 01:42 PM	#8
maw Pentaxian Join Date: Feb 2014 Location: Sassari (Italy) Posts: 1,118	Hi all, Originally posted by photolady95 I removed the battery and left it out of the camera for 24 hours, I have tried, leaving the camera without battery for over 24 hours, unfortunately nothing happened, the K-30 has no buffer battery, so the problem is to be found elsewhere. I do not know, perhaps writing to assistance in Italy (FOWA), they will tell me what to do. I know the answer, "send us the camera" Otherwise, the alternative is to leave it all this way and when I replace the battery, reset the date and time, simple no?

04-26-2018, 03:30 PM	#10
maw Pentaxian Join Date: Feb 2014 Location: Sassari (Italy) Posts: 1,118	Originally posted by Pyroburner69 The online estimate was $200 bucks and at the price I feel like I'm better off replacing the camera. Hi Pyroburner69, Thanks for the video, very informative, but does not specify what type of battery is needed, in case I wanted to venture in the disassembly and reassembly of the K-30. I think I'll keep it like this, after all it is perhaps easier to reset the date and time. Always better than sending it for assistance.

12-17-2019, 09:17 AM	#12
ekip Forum Member Join Date: Apr 2016 Posts: 68 Original Poster	Originally posted by billwe A couple of months ago I started having the aperture block problem giving me dark pictures. About the same time I started having a problem with the internal time resetting whenever the battery died or was changed. So if I was going to open my K30 I figured I would tackle both problems. I replaced the solenoid to fix the dark pictures. For the time problem I found this video showing the repair. Pentax K30 Backup battery replacement - YouTube He lists the part number from Digi-Key as 604-1078-ND. It cost me about $7 with shipping. The soldering was a bit of a challenge since it is a small surface mount device. I also had to be careful not to bump the other nearby components and really mess things up. But I managed to get it soldered correctly and it fixed the problem. Did you happen check what was written on the old one?

12-17-2019, 06:25 PM	#13
billwe New Member Join Date: Oct 2019 Location: Dublin, OH Posts: 6	I don't remember. But doing a search for digi-key and that part number gives: Manufacturer Elna America Manufacturer Part Number DCK-3R3E204T614-E Description CAP 200MF -20% +80% 3.3V SMD

05-10-2020, 08:10 AM - 2 Likes	#14
marcusBMG Site Supporter Join Date: Nov 2012 Location: North Wales Photos: Gallery \| Albums Posts: 2,868	The spec for the battery is: 6.8mm, 3V, 3mAh with fitment prong. Manf part number MS621T. Seems pretty readily available online. The MS series are lithium rechargeable batteries use silicon oxide as the anode and a lithium manganese composite oxide as the cathode. https://media.digikey.com/pdf/Data%20Sheets/Seiko%20Instruments%20PDFs/MS621T.pdf