Referring to the small, unmarked coin cell on the PCB of the DSOne SDHC. What's its designation?
After measurement by hand (6.5 to 7mm by 1.5 to 2mm), the closest I could find was the SR65. But that one is 1.55v (not 2.5v) and non rechargeable.
Reason for this is that I'm thinking of getting a lifetime supply of these carts (for when they inadvertently disappear). But it'd be rather pointless if the batteries in them would all die at the same time in a couple of years.
Anyway, I wonder if these batteries were a cost or space saving measure. Certainly the PSRAM doesn't need to be powered on all the time?
After measurement by hand (6.5 to 7mm by 1.5 to 2mm), the closest I could find was the SR65. But that one is 1.55v (not 2.5v) and non rechargeable.
Reason for this is that I'm thinking of getting a lifetime supply of these carts (for when they inadvertently disappear). But it'd be rather pointless if the batteries in them would all die at the same time in a couple of years.
Anyway, I wonder if these batteries were a cost or space saving measure. Certainly the PSRAM doesn't need to be powered on all the time?