[Elecraft] KX3 battery question - alkalines in KXBC3?

[Stephen Prior]

If I buy the KXBC3 NiMH battery/RTC option, can I still put ordinary
alkaline manganese cells in it as well?  And would the KXBC3 know not to
allow charging to occur?  Or would I need to swap the KXBC3 with the
standard battery pack if I wanted to use non-rechargeables?

Thanks

Stephen G4SJP