Replacement battery dimensions (SL572035) for Radsone earstu

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Es100owner
 
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Replacement battery dimensions (SL572035) for Radsone earstu

Post by Es100owner »

Hi all,

I'm looking to purchase a replacement battery for a Radsone earstudio es100. The battery inside is SL572035 3.7v 350mAh. This battery appears to be discontinued.

I have found the following two batteries on this website, and want to check whether they have the exact same physical dimensions as the original (or smaller) as the battery must fit inside a small casing.

Lp402025 https://www.adafruit.com/product/1317
Lp552035 https://www.adafruit.com/product/2750

Are the numbers related to the dimensions of the battery?

Thanks for any and all assistance.

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adafruit_support_bill
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by adafruit_support_bill »

If you scroll down to the "Technical Details" on those product pages, the dimensions of the cells are posted.

Another variable to be aware of is the polarity of the connector. Some manufacturers wire them one way, some wire them the other. Double check before connecting the cell. It is not difficult to swap the wires in the connector if necessary.

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Es100owner
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by Es100owner »

Thanks for the info, particularly regarding checking polarity.

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Es100owner
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by Es100owner »

Edit, this page shows 2 sets of dimensions in the specifications

https://www.adafruit.com/product/4237
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adafruit_support_bill
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by adafruit_support_bill »

Thanks for pointing that out. The first set of dimensions looks more believable for a 350mAh cell. But I'll have our web-team verify that and correct the page.

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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by adafruit_support_bill »

Update: The correct dimensions are now posted on the product page: https://www.adafruit.com/product/4237

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infernodawn
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by infernodawn »

Hi,
Did you managed to replace the battery? Does it work?
My Earstudio ES100 is shutting off randomly which I suspect is a battery failure as well, would like to know if this is the same case as yours.

Thanks.

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Es100owner
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by Es100owner »

Unfortunately replacing the battery did not work. I suspect my issue was actually firmware related as neither the old or new battery would charge when inside the device, and the issue began when I made a change to the charging options within the earstudio application.

The headfi forums have a long thread of people with es100 issues, spontaneous deaths, failure to charge, switch on, etc. I'd recommend the qudelix 5k if you are looking for a replacement. The device was developed by the previous tech lead on the es100 if I am not mistaken. It has a 10 band visual eq, a parametric EQ, and more solid build quality than the es100.

Might as well try replacing the es100 battery first, but I was very averse to buying another es100 when that failed.

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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by infernodawn »

Good news, I've bought a replacement battery and had it replaced. I've been listening for 2-3 hours without any power interruption for the past 2 days. But there is once that it shuts off on its own, I'm thinking it should be a firmware issue.

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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by smirnboy »

Hello Inferno,
I'm happy to read that you find a solution for your es100.
how did you open your es100?
My battery is dead, the es100 won't work unless connected to usb.
do you have the references of the battery you bought as replacement?
Thanks for your help...

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infernodawn
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by infernodawn »

Hi Smirnboy,
You may refer to the photos i've attached. You need to pry from the top case (LED facing upwards) from the corners. Then remove one screw that ties the board on the bottom case. Next is to pry from the corners of the bottom case, and once opened, you can access your battery. Some desoldering is required to remove the battery from the board. The spec will be 3.7v, 350mAh.
The code 572035 refers to 5.7mm thickness, 20mm width, 35mm length. But you may look for different dimension as long the specs are similar and can fit into your ES100. Do let me know if you need any further advice, good luck!
Attachments
Finally, you will be able to access your battery from the bottom case.
Finally, you will be able to access your battery from the bottom case.
Step 3.JPG (27.51 KiB) Viewed 895 times
Next, remove the screw that ties the board to the bottom case. Then continue to pry from the corners.
Next, remove the screw that ties the board to the bottom case. Then continue to pry from the corners.
Step 2.JPG (19.75 KiB) Viewed 895 times
First, pry the top case (LED facing upwards) from the corners of the USB port.
First, pry the top case (LED facing upwards) from the corners of the USB port.
Step 1.JPG (32.67 KiB) Viewed 895 times

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infernodawn
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by infernodawn »

Btw, my photos are posted in descending order, you may read the comments in the photo for more details.

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smirnboy
 
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Re: Replacement battery dimensions (SL572035) for Radsone ea

Post by smirnboy »

Thanks a lot for all the precious informations

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