[Q] experiencing greater battery drain on wifi than 3g?

hsuuperman · Jan 8, 2014

So after much trial and error after experiencing heavy battery drain, finally was able to figure out that my wifi was draining my battery faster than when it was on 3g (6% overnight on 3g, than compared to 20% when on home wifi, both under same conditions). Noticed on BBS that when on wifi, the entire time it said that as long as wifi was on, there was a "no connection" and "no or unknown connection" reading. I found this very odd given that my wifi connection at home isn't bad, and I definitely have a connection at home.

Does anyone know why I'm getting greater drain on wifi than on 3g? I thought that generally speaking 3g is more power intensive than wifi. Is this odd BBS reading contributing to my draining battery on wifi? Notice on my battery stats that wifi never dropped all night. Please help!

danarama · Jan 8, 2014

Except the amount of drain, nothing looks abnormal there. You have "no connection" to your mobile data network (because you're on wifi) so that's normal

Signal strength looks low. Would need logs from bbs really

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jbdan · Jan 8, 2014

Maybe you have gallery or Google+ or another app to sync data only when on WiFi? Or in WiFi settings in advanced settings do you have "scanning always available" checked?

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simms22 · Jan 8, 2014

ive always gotten more drain on wifi than on 3g(h, h+) or lte. on my ns, gnex, nexus 4, and on my nexus 5. if your data connection is of better quality via mobile instead of wifi, then the mobile connection will be better on battery.

gbarayah · Jan 8, 2014

jbdan said:
Maybe you have gallery or Google+ or another app to sync data only when on WiFi? Or in WiFi settings in advanced settings do you have "scanning always available" checked?

Sent from my Nexus 7 using XDA Premium 4 mobile app

THIS.

I found that disabling 'scanning always available' improved my idle battery drain considerably.

hsuuperman · Jan 9, 2014

Yup, I've got all those disabled, and Google Now off. Just getting bad drains on wifi. Maybe my wifi signal at home isn't as good as I thought...

Ajtaji · Jan 9, 2014

I noticed this with ddwrt on my router, went back to stock Cisco firmware and it went away...

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[Q] experiencing greater battery drain on wifi than 3g?

hsuuperman

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