In SX Microcontrollers, SX/B Compiler and SX-Key Tool, originator99 wrote:

Any guesses as to the life of battery on an SX (sleep or awake)  and some low current reguation?  

17mA SX 28 at 4mhz  awake
3mA 433 Tx module asleep

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20mA  not including  unknown regulation variable

I am no math wiz, but is it correct that 1 amphour =  1 hour usage at the working voltage?

1000 mA draw = 1 amp  = 1 hour use
100mA draw = 1 hour x 10
20mA draw = 10 hours x 5  = 50 hours

I may be way off here since I really have no clue to the real formulas, but if this is even close, then I am going to need a power switch on the remote Tx which I had hoped not to use.

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