My Dream Uno MI-498, a 3 yr. old set, presently running Marshmallow, is behaving
strangely since last 3-4 months. Due to some unknown reasons, battery is depleting
very fast & sometimes as low as 4-5 hrs till zero level. While checking battery
details, I find that "Mobile standby" is the major culprit & consumes 95% of battery. e.g., at say, 10% battery remaining, Mobile standby usage is around 85%, screen- 1%, voice calls-1% etc . While checking history, I find that system shows Wi-Fi signal is on, but actually, in order to save battery, I never keep Wi-Fi on while not in use. Since my ROM is only 4 gb, I uninstalled majority of apps, disabled un-installable apps like Flipkart etc, switched on battery saver to increase battery life but nothing improved. Strangely, I have found that, if I keep Wi-Fi always on & surf net for some time depletion of battery halts to a great extent & then battery can last for more than 2 days. Earlier, same handset gave me 6-7 days battery strength. I am also having another Android one set from Micromax, which incidentally showed identical problems with battery lasting for 3-4 hrs without any usage. In this case also, battery history indicated that all signals( mobile network, Wi-Fi, Awake, Screen ON) are always ON which is not true excepting mobile network signal. Luckily, keeping Wi-Fi always on & surfing net for some time, mobile standby usage reduced & battery life increased to a great extent (now 3-1/2 day running with 55% battery remaining).
Being a newbie, I am clueless to these strange behaviors of Android 6.0.
I am now requesting my member brothers to give some suggestions/settings(without
rooting) so that battery life of my Spice mobile increases to at least 4-5 days.
My mobile service provider is BSNL(Bharat Sanchar Nigam from India).
Thanks & regards,
S. K. De