Hi All,
What is the standard way to do this?

For a PIC based (at the moment 16F84) application including LCD, EEPROM and Serial (RS232)
communication I'm using a single AAA cell (due to size and weight constraints), Linear Tech LT1502
3.3V (step-up switching cap charge pump) voltage regulator and (for LCD power) LT1516 5V step-up
regulator at the moment. I realize this is not the preferred way, especially as the 1502 can only
provide 10 mA @ 1V and about 15 @ 1.3 V so normal batteries don't last long :-( (i.e. if they drop
below ~1.35 V the thing stops working). Should I just put 2 AAA cells in there?

I thought of using an accu and integrate a charger circuit in the device so that a wall wart could
be used for charging but I'd have to switch to a PIC with integrated ADC (what I'll do anyway). Is
there any good, cheap and commonly available chip that can do this for me?

TIA
Stefan Sayer