How to save the power consumption in raspberry pi 3

[pnaven03]

Hi Team,

AM using raspberry pi 3 and kernel version Linux raspberrypi 4.4.11-v7+ #888 SMP Mon May 23 20:10:33 BST 2016 armv7l GNU/Linux, My device running in battery mode when raspberry pi 3 power fails , i disable some port like Ethernet port, Bluetooth,
HDMI port and any possible to disable to save the power, any mechanism available in raspberry pi 3 , please any one help on this.

Regards,
Nv

[DougieLawson]

Spend £5 get yourself a RPiZ or spend £10 and get a RPiZW if you need WiFi.

[pnaven03]

DougieLawson

Thanks for the reply,

we are using 5000mAH battery backup in raspberry pi 3 when mains power failure,
target is raspberry pi 3 run in 30 hours ,so we are not achieving target , so any methods to save the power and possible to
disable modules.

Nv

[DougieLawson]

It won't have any effect. To reduce power run on a Zero.

[jamesh]

DougieLawson

Thanks for the reply,

we are using 5000mAH battery backup in raspberry pi 3 when mains power failure,
target is raspberry pi 3 run in 30 hours ,so we are not achieving target , so any methods to save the power and possible to
disable modules.

Nv

Looks like you are already doing most of what can be done to reduce power. You could try turning off some of the CPU cores, but you may as well be using a Zero if you do that.

[gregeric]

500mAh spent over 30 hours is roughly 160mA average current draw.

You might acheive that with a Zero or A+.

Does your task need to be always-on? If not, an alternative would be to use a MoPower or WittyPi to automatically power on/off the Pi at suitable intervals, thus extending run time.