ML2032 Battery

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MurrayM

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Topic # 142702 21-Mar-2014 10:35

Does anyone know where I can get an ML2032 battery from?

They're a 3V rechargeable battery, apparently often used on motherboards. I need one for my Logitech K750 solar powered keyboard as after 18 months it's no longer holding much of a charge.

I see that Element 14 have them, http://nz.element14.com/maxell/ml-2032-t17/button-cell-r-c-pcb-2032-3v/dp/3031998, but they want $23.68 and it will ship from their UK warehouse. I found a few places on Amazon selling it for US$4 - US$6 but they don't ship to NZ. Jaycar apparently don't have them.

Bung

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Reply # 1010521 21-Mar-2014 12:03

If you have the flexibility to substitute another battery there's quite a few pcb mount 3v lithium with 65mah or higher on simpower.co.nz

robjg63

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Reply # 1010545 21-Mar-2014 12:29

Are you sure the solar panel is still working?

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1101

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Reply # 1010656 21-Mar-2014 15:23

Try ebay .

I bought a cellphone batt for US$1 +$5post . And it still works !!!!
Just make sure you pay via paypal .

MurrayM

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Reply # 1010660 21-Mar-2014 15:30

robjg63: Are you sure the solar panel is still working?

Well it has a little app that shows you the current charge in the battery and how many lux it's receiving. If I put it in direct light then the lux metre goes up and if I cover the solar panels then it drops right off. So to me it looks like the panels are still working ok.

The other day when I left work I put the keyboard on the window sill so it could get the late afternoon sun. Then the next day I took measurements. At 9am the battery was at 85%, 10am 72%, 11am 62%, 12pm 57%, 1pm 58%, 3pm 46%. I did the same thing again and in the morning the battery charge was around the 80% mark and then drops off over the course of the day.

When I first received the keyboard it would go for weeks with just ambient light charging it and very little drop off in the battery.

So does this sound like a rechargeable that can't hold a good charge any more?

MurrayM

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Reply # 1010661 21-Mar-2014 15:33

Bung: If you have the flexibility to substitute another battery there's quite a few pcb mount 3v lithium with 65mah or higher on simpower.co.nz

I don't know much about batteries but I've been reading the Logitech support forum and lots of people seem to report problems with this keyboard holding a charge after several months. Some have asked if they can replace the battery with something else as the ML2032's are a bit hard to find and Logitech support always say no, it has to be that specific battery.

It's a really nice keyboard that cost $90 and I'd like to keep it if possible.

MurrayM

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Reply # 1010666 21-Mar-2014 15:43

1101: Try ebay .

I bought a cellphone batt for US$1 +$5post . And it still works !!!!
Just make sure you pay via paypal .

Well I found it on eBay for NZ$7.53 with free shipping from Hong Kong. I've bought it so we'll see if that fixes the problem or not. Worth a shot if I can get another year or so out of this nice keyboard!

gjm

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Reply # 1010675 21-Mar-2014 15:54

let us know how it goes. Ive got one with the battery seeming to be dropping off a bit as well

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Bung

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Reply # 1010676 21-Mar-2014 15:55

MurrayM:
I don't know much about batteries but I've been reading the Logitech support forum and lots of people seem to report problems with this keyboard holding a charge after several months. Some have asked if they can replace the battery with something else as the ML2032's are a bit hard to find and Logitech support always say no, it has to be that specific battery.

They would stick to the script. If it was mine if I couldn't get ml2032s easily I'd look for other 3v Lithium Manganese Dioxide batteries with a 65mah capacity or higher and pick the best combination of ease of fitting and availability.

MurrayM

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Reply # 1010678 21-Mar-2014 15:58

gjm: let us know how it goes. Ive got one with the battery seeming to be dropping off a bit as well

Ok, will do.

Arrival time is sometime in April, so it might be a little while before I can report back.

MurrayM

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Reply # 1010679 21-Mar-2014 16:00

Bung:
MurrayM:
I don't know much about batteries but I've been reading the Logitech support forum and lots of people seem to report problems with this keyboard holding a charge after several months. Some have asked if they can replace the battery with something else as the ML2032's are a bit hard to find and Logitech support always say no, it has to be that specific battery.

They would stick to the script. If it was mine if I couldn't get ml2032s easily I'd look for other 3v Lithium Manganese Dioxide batteries with a 65mah capacity or higher and pick the best combination of ease of fitting and availability.

Yeah if I wasn't able to find an ML2032 then I might investigate other batteries, but I since I've been able to find one for $7 I don't need to go down that route.

ubergeeknz

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Reply # 1010682 21-Mar-2014 16:09

These might be an option too: http://www.digikey.co.nz/product-detail/en/ML-2020%2FH1CN/P047-ND/416290 - they're already fitted with PCB pins and only 2.0 mm thick instead of 3.2 but it should be possible to bend the holder a bit (or leave one of the welded pins intact) - the type and capacity is the same as an ML2032

MurrayM

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Reply # 1010685 21-Mar-2014 16:15

ubergeeknz: These might be an option too: http://www.digikey.co.nz/product-detail/en/ML-2020%2FH1CN/P047-ND/416290 - they're already fitted with PCB pins and only 2.0 mm thick instead of 3.2 but it should be possible to bend the holder a bit (or leave one of the welded pins intact) - the type and capacity is the same as an ML2032

They keyboard has a little slide-in tray that is shaped to hold the battery perfectly and is then slid into the keyboard where a couple of metal bits make contact with the edge and bottom of the battery. It might take quite a bit of juggling around to make one of those fit perfectly.