Topic: Nakamichi CM300 battery's - quick question

[Popmarter]

UPDATE 11-11-2014:
Got these http://www.batterybob.com/product.asp?intProdID=999908 batteries from Batterybob today: They do NOT FIT (not even close). 

[cavekelly]

If you are unable to return these batteries, you can still make them work.  Using a very sharp knife, slit the outside white plastic casing and remove.  Underneath is a cardboard tube base.  CAREFULLY remove successive layers off the cardboard tube until it fits into the microphone.  I have done this and the batteries are still functioning.

 I highly recommend the "dog collar" six volts that were posted above; cheap and effective.

[Life In Rewind]

UPDATE 11-11-2014:
Got these http://www.batterybob.com/product.asp?intProdID=999908 batteries from Batterybob today: They do NOT FIT (not even close). 

Do they resemble the photos on the battery bob page - or are they different?

Sucks - these always used to work...

[ts]

Yeah, that sucks. They must have changed the specs. They always worked great for me. I thought they were a great find, since I got tired of filing the paint off the red ones to make them fit and they were still tight.

[Popmarter]

i have a reply from batterybob. same suggestion as mentioned earlier. take of the white cardboard. i took it all of and the basic battery remains. this one does fit, bit to small actually.

best is the 4R44 option with some tape around it. much cheaper...

[flipp]

Yeah, that sucks. They must have changed the specs. They always worked great for me. I thought they were a great find, since I got tired of filing the paint off the red ones to make them fit and they were still tight.

The specs for the Everready 206 can be found in this old post if you want to compare them with the replacements you've found. Has anyone tried stacking six no 110 cells in series since that is what the spec sheet indicated is in a 206?

[Life In Rewind]

Yeah, that sucks. They must have changed the specs. They always worked great for me. I thought they were a great find, since I got tired of filing the paint off the red ones to make them fit and they were still tight.

The specs for the Everready 206 can be found in this old post if you want to compare them with the replacements you've found. Has anyone tried stacking six no 110 cells in series since that is what the spec sheet indicated is in a 206?

Can you even get those Zinc batteries anymore?

You'd think there would be a some vendor out there who would make you what ever you want in small runs.

[Hypnocracy]

From the Nak Team Board...Roger is one of the resident Nakamichi Microphone mod men...Naks can take 12v...just don't go to 14v

wow...so the LR44 idea works?  Looks like a winner to me!  Gonna give it a shot in mine!

You can also use two 4LR44 in place of eight LR44. I have done for years.

[letitgro]

Hi Letitgro, sorry to hear this. Can you provide us the link to the product? My order from BatteryBob is not in yet, will have to see if that version is the same 

In the meantime I did found some other options on the forum with the search option.  Cheaper stuff, and more easy to come by but you need a bit of creativity to get it fixed. I have not done this myself as I still wait for the mics to arrive.

I'm sorry I didn't see your post till way after the fact, otherwise I would have warned you.

[Popmarter]

 

The 'white one's' from Battery Bob's work but you have to peel off the piece of carbon to get to the actual battery. That one fits, but as said earlier, there are much cheaper options.

[mhlsr]

I make my own. I take 4 LR44's and heat shrink them together with 1/2" heat shrink tubing. I got some plastic tubing from the hardware store 1/2" ID. Cut to size of 4 LR44's
slide LR44's inside.Cut piece of 3/4" heat shrink tube to size of 2 batteries place batteries inside tube ,Take 3 Volt CR2 and LR 44's in tube between index finger and thumb and squeeze tight. Heat shrink tube with lighter. I marked pos end with red tape.

[ts]

These also work:

http://www.batteriesinaflash.com/special-application/duracell-pc177a-alkaline-battery-snap-connectors-replaces-177a-7lr44

You have to build them up a little as the diameter is too thin. The length is good.

[kuba e]

Roger gave us a lot of possibilities to replace the battery for nakamichi. Look here:
http://taperssection.com/index.php?topic=104297.msg1393481#msg1393481

I am using six 1.5V cells (for watches). I am placing between them pads to reach the correct length. Then i fix it with electrician cardboard. It will take 10 minutes.
You can buy cells with diameter 15 mm. If you will buy smaller diameter, you can wrap it in paper to get right diameter.