Russian RPN calculator series Elektronika MK

[burkhard]

(05-29-2019 02:49 AM)toml_12953 Wrote:  

(05-28-2019 06:15 PM)burkhard Wrote:  Put flat top AA (no quotes) into the search bar of your favorite auction site and you will see a bunch of lime green generic NiMH rechargeable ones up for sale. They cost about $US10-$US11 for a set of 4 with free shipping in USA. They still are a smidge tight IMO, but much better than normal ones.

Have you used them for any length of time? The manual specifically warns against using rechargeable batteries.

No, I have not. I wonder what the concern is? Maybe Soviet-era rechargeable batteries are a little sketchy in terms of leakage? Or maybe the nominal voltage of the rechargeables is a little low for the DC-DC converter needed to drive the VFD?

I haven't used the calculator extensively, but it did work and I didn't notice any trouble.
Perhaps I need to exercise it a bit more!