Replacement battery for Alesis Fusion

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Replacement battery for Alesis Fusion

Postby Jesse » Sun Sep 07, 2014 10:25 pm

Panosonic BR2325-HGN 3V Lithium 165mAh Standard Fusion Battery Primary (Non-Rechargeable)
http://www.alliedelec.com/panasonic-br2325-hgn/70196895
BR2325.jpg
BR2325.jpg (6.06 KiB) Viewed 3151 times


Panosonic BR2330A/GA 3V Lithium 255mAh higher capacity Battery Primary (Non-Rechargeable)
http://www.alliedelec.com/panasonic-br2330a-ga/70196829/
BR2330.jpg
BR2330.jpg (6.42 KiB) Viewed 3151 times


Panosonic coin cell BR & CR data sheets.pdf
(511.87 KiB) Downloaded 193 times


The Fusion's battery is soldered onto the Main PCB
Alesis Fusion battery 01.jpg
Alesis Fusion battery 01.jpg (367.74 KiB) Viewed 3151 times
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Re: Replacement battery for Alesis Fusion

Postby Jesse » Fri Feb 17, 2017 10:34 am

I just checked the battery voltage in my non working Fusion 8HD, it's about 12 years old.
It started out at 2.88 volts and very slowly creeped up to 3.03 volts.
A new battery will have 3.3 volts, when the old battery voltage drops below 3.0 volts it is time to replace it.

The Fusion uses this battery - Panosonic BR2325-HGN 3V Lithium 165mAh Standard Fusion Battery Primary (Non-Rechargeable)
http://www.alliedelec.com/panasonic-br2325-hgn/70196895/

I am going to order two new batteries for my Fusion 8HD's. I am going to go with the BR2330A-GA which has a higher capacity and hopefully longer life.
Panosonic BR2330A-GA 3V Lithium 255mAh higher capacity Battery Primary (Non-Rechargeable)
http://www.alliedelec.com/panasonic-br2330a-ga/70196829/

The BR2330A-GA is has the same dimentions as the BR2325 except it is 0.5 mm thicker.

I need to find out if 3 volt power needs to be supplied to the main PCB while the battery is being replaced?
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Re: Replacement battery for Alesis Fusion

Postby Jesse » Sat Feb 10, 2018 1:30 pm

Just a reminder our Fusion's are 10 to 13 years old and if you have not replaced the battery in your Fusion you should consider doing this ASAP
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Re: Replacement battery for Alesis Fusion

Postby EXer » Sat Feb 10, 2018 2:02 pm

Why did not Alesis use a battery holder? Image

I don't feel comfortable approaching a motherboard with a soldering iron.

That's why my TX81Zs still have their 30 years old batteries. One has even leaked a bit and I had to clean the board, but they are still working and they are still keeping their internal (i.e. user) programs.
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Re: Replacement battery for Alesis Fusion

Postby Jesse » Sat Feb 10, 2018 4:36 pm

EXer wrote:Why did not Alesis use a battery holder? Image

I don't feel comfortable approaching a motherboard with a soldering iron.

That's why my TX81Zs still have their 30 years old batteries. One has even leaked a bit and I had to clean the board, but they are still working and they are still keeping their internal (i.e. user) programs.


I don't know why, but if you have a tech remove the battery for you they could probably install different battery holder, but then you would need the battery without the attached tabs :)

On the bright side having to change the battery once every 10 or 12 years isn't so bad :)
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Re: Replacement battery for Alesis Fusion

Postby EXer » Sun Feb 11, 2018 4:55 am

Jesse wrote:if you have a tech remove the battery for you they could probably install different battery holder

That's a good idea Image

I replaced the batteries in several Yamaha instruments which have a battery holder, it was a piece of cake (they use CR2032 batteries).
They are older than my Fusion and it still seems incomprehensible why Alesis did not use a battery holder!

Jesse wrote:but then you would need the battery without the attached tabs :)

I have just checked: BR2325 and BR2330 batteries are available without tabs.
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Re: Replacement battery for Alesis Fusion

Postby parametric » Mon Feb 12, 2018 12:01 am

If you are fitting a holder - be sure to buy the correct holder for the battery you're going to use.

i.e. a 2032 holder won't take a 2025 battery . . . . (for instance).

Re: no holder in the Fusion . . . . I would guess it was more expensive to fit a holder?

(=an extra component in the BOM)

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Re: Replacement battery for Alesis Fusion

Postby mstsfreak » Mon Jun 18, 2018 1:58 pm

Just a question: can i see in diagnostic mode what the status of the internal battery is?
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Re: Replacement battery for Alesis Fusion

Postby Jesse » Tue Jun 19, 2018 12:05 am

I don't believe there is a battery check function in the diagnostics, I checked my fusion battery when I had the unit open.

An external jack to connect a voltmeter to would be nice :)
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Re: Replacement battery for Alesis Fusion

Postby mstsfreak » Tue Jun 19, 2018 12:53 am

What could happen if the battery runs out?
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Re: Replacement battery for Alesis Fusion

Postby parametric » Tue Jun 19, 2018 4:21 am

Generally, the Fusion will suddenly not know what day it is . . . .

Date and time will be gone, and there will probably be garbage in the display . . . .

You'll need to do a master reset (to begin with) and then go through the settings you may have altered

(in the <Global> section), and restore them to the settings YOU chose . . .

Might be good to run through the diagnostics too . . .

I HAVE NEVER EXPERIENCED THIS - so there's a (?) about the Serial Number, which is viewable

in one of the menus. - i.e. if the Cmos battery dies, is it lost?

For obvious reasons this is not user alterable, but it can be re-entered with a special gizmo

that is described in the SERVICE MANUAL.

IIRC - this gizmo can be "made" by the user - and connects midi IN to midi OUT for certain operations . .

If the Serial number issue becomes problematic - you may need to contact Alesis/InMusic

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Re: Replacement battery for Alesis Fusion

Postby 2ManyKeys » Wed Jul 11, 2018 10:31 pm

That is a little worrisome. :(

I will probably replace it at some point before it dies and put a parallel supply on the contact points while replacing the battery. I will of course replace it with a simple CR2032 socket on some extension wires and locate it in a much more accessible spot. Since the current levels are so miniscule you don't have to worry about extension wires causing a voltage drop.

Did I ever mention I hate opening the Fusion? :-)
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Re: Replacement battery for Alesis Fusion

Postby Jesse » Wed Jul 11, 2018 11:28 pm

I suppose you could always put a piano hinge on the back and a couple tool box flip lock tabs on the front :)
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Re: Replacement battery for Alesis Fusion

Postby jiffy » Thu Jul 12, 2018 3:37 am

2ManyKeys wrote:Did I ever mention I hate opening the Fusion? :-)


I'm with you on that one!
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Re: Replacement battery for Alesis Fusion

Postby 2ManyKeys » Thu Jul 12, 2018 9:23 am

It's just that each half is so heavy it requires very careful manipulation so as not to damage internals during disassembly and assembly.

It's closer to working on a car. :-)
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