Quote Originally Posted by Ron Marcus
Maxim has a couple of small regulators that will put out up to 3 amps until your batteries have been drained to under 2 volts
I've had a look around, and can't find any step ups that do this - the MAX711 will only provide around 300mA. The peak current drawn by the GSM module claims to be up to 2A.

Hmmm... will keep looking

Thanks for all your help,

Ben