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Old Mar 9, 2003, 7:21 AM   #1
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Default you replace batteries for d1x Nikon EN-4

I want to change the batteries that are the inside of the form battery
of the D1x, Nikon EN-4 module, do you know if is it possible do it? with what elements of battery are been able to
replace greater than 2000 mah

tanks
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Old Mar 9, 2003, 11:42 AM   #2
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arcadinoe

First, let me make sure I understand you. You'd like to take apart an EN-4 battery and replace parts of it, hopefully making it into a battery which holds more power?

If this is correct, I would say "don't do it!!!" There are a lot of nasty chemicals inside there. Sure, its better than it was, but I still wouldn't want to try it.

On the other hand, someone makes a replacement for the EN-4 which holds more power. Let me see if I can google the link for you:

http://www.globalmart.com/page/p/pr_114dg.htm

Well, that was harder than it should have been. I finally found it using:
"EN-4" replacement polaroid

That is only one of many links. I don't know the company. The big win for you is that its cheaper than the nikon battery and its more powerful!!!

Sounds like a win-win to me.

Eric
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Old Mar 9, 2003, 11:56 PM   #3
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While doing some reading tonight, I bumped into this thread on dpreview.com's forum. Someone talked about just what you asked. Here is the link:

http://forums.dpreview.com/forums/re...essage=4551504

(I hope steves doesn't mind posting links to other's forums.)

Two things which caught my eye:
1) Someone saying it was easy and cheap to "rebuild" an EN-4 battery. I'm not sure I'd want to try it without good instructions.

2) An had a link to a different store for the same battery I listed above... but for much cheaper! So I'd definitely shop around for a better price:
http://www.wallstreetshops.com/pr-114dg.html

Eric
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Old Mar 10, 2003, 8:45 AM   #4
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eric s- you never heard of polaroid?
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Old Mar 10, 2003, 8:53 PM   #5
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sjms
I'm not sure I understand the question. Knowing this place, you don't mean it badly, so I'm not really annoyed... I just don't see where you're going.
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Old Mar 10, 2003, 9:18 PM   #6
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... I think what sjms meant was the Co. is now bankrupt even though some of their stuffs are still on sale (like their remarkably good film scanner).

http://finance.yahoo.com/q?s=prdcq.pk&d=c
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Old Mar 16, 2003, 11:23 AM   #7
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Hi arcadinoe,

Actually I did manage to convert one of the EN-4 to accomodate a external battery. Firstly, I don't think you can easily replace the battery inside the EN-4, they are different from AA battery available on the market. The 6 batteries are short in length and spot wielded together. What I did was to remove the 6 original battery and soldered a wire to an external battery holder with 6 'C' size GP 2200mAh battery. If you are interested I can send you images of the part I use to create the external pack.

My first test was using 6 old 'AA' GP batteries which is still good for about 400 shots on my D1x with setting on RAW compress. I have with the 'C' size pack for more than 500 shots and the power indicator on the D1x still show full.
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Old Mar 16, 2003, 2:57 PM   #8
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If you are going to go through the trouble of building a battery pack, there is a very easy way to do it. Plug it into the external power jack on the side of the camera (it doesn't sound like that is what you did.)

This is basically how all the commercial external battery pack work. For example, this one reviewed here:

http://www.imaging-resource.com/ACCS...00/DPS9000.HTM

I've seen several web pages about doing this. Let see if I can dig any of them up. Nuts, I could only find this one. I've seen sites which describe in very good detail. Well, poke around yourself, you might find it.

(I haven't read this one, but I know the site. He writes well and knows his stuff.)
http://www.dansdata.com/cambattery.htm

You might also want to read this link:
http://forums.dpreview.com/forums/re...essage=4531305
It talks about a store which rebuilt his EN-4

Or this one:
http://forums.dpreview.com/forums/re...essage=4540432
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Old Mar 17, 2003, 4:09 AM   #9
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Thanks Eric for the info.
I know there are external power such as www.digitalcamerabattery.com out there. However if you used the adapter in front of the camera I don't think the camera will show if the battery is weak or near exhaustion ( I could be wrong ). The advantage with a modify EN-4 is that the camera will keep tad of that for me. Also I can charge the battery using the Nikon charger.
I went thru' the trouble of building my own battery because Nikon Singapore have run out of stock for EN-4 for at least 3 to 4 mths now and their official reply seem to be that they have put in the order but have no idea when it will arrive. Now how that for professional service. Guess if I join NPS which was recently launch in Singapore I can borrow a EN-4 when I need one, ha ! Ha! The Polaroid was out because of the shipping cost unless I can order in large quantity. So here is my story. You guys in the US and UK have it good, with original EN-4 and substitute available.
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Old Mar 17, 2003, 6:00 PM   #10
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The battery meter problem is a very good point. I hadn't thought about that. But you could easily build a pack which lasts for over a week on constant vacation use (use C-cell batteries, for example.) To me, that would mean I could go a month before I had to charge it with normal use. I think I'd remember to charge it within that time.

"I don't know when we'll get more" is a very quick way of loosing business. Being in the US, I'd just get the Polaroid.... pity that isn't an option. I wonder if they sell them in Australia and someone would ship from there. That would probably cost too much, though.

Good luck. From all I've heard about the EN-4's really bad power, I hope you solve it soon. I'd hate to have to depend on one of those.
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