[sdiy] Alpha Juno battery replacement

[Ingo Debus]

> Am 04.09.2026 um 11:31 schrieb Richie Burnett <rburnett at richieburnett.co.uk>:
> 
> That voltage sounds low, Adam.  Mine was still measuring nearly 3.3,

Under which load? These Li coin cells are strange. Some are still full voltage under no load when they are EOL and some have a quite low voltage even when they are still good for some time. I always measure them with a 10k load.

> and is actually still brightly illuminating a red LED on the bench beside me after 3 days! 

Ah, quite a high load. Amazing!

For the record, the first Li cell in my DX7 lasted for about 20 years.

Just a reminder, always wear safety goggles when soldering or unsoldering Li cells!

Ingo
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