I am using micro SD card to log reading from four force sensors connected to the microcontroller (MSP430G2553). Controller logs reading to the SD card every 15 minutes and goes to sleep. I am using 1000 mAh battery, which is lasting over a week. Is it possible to reduce the power consumption as to make it last over a month.
(#) Even if the microcontroller is sleeping for 15 minute, SD card is continuously consuming power.
(#) It takes couple of mA to write.
Help with any suggestion to reduce to power consumption drastically. Schematic and code (attached).