Say I have a battery that can provide 150-200mA of current continuously, but I have a module which is active periodically, and requires a large pulse current as well as a continuous current that exceeds what the battery provides.
For argument's sake lets say the module is a GSM modem, with a pulse of 2A for 200us, and continuous current of 300mA for 5s.
What is the best way to utilise some sort of bulk capacitor or charge reservoir to power the module?
How might I do this without exceeding the battery's max output current to provide the charge?
Here's an example of a battery that illustrates the supply: http://www.farnell.com/datasheets/1445889.pdf