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ColinB1
Beginner
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Message 1 of 11

Mobile battery depletion

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Can anyone explain?  Two identical unlocked Samsung J3 mobiles. Charge both to 100%. Put BT SIM in one and Giffgaff SIM in other. Put both on standby. The one with BT Sim needs recharging after 24hours but one with Giffgaff lasts further 72hours. Repeat process but switch SIMs to other phone. The same thing happens. WHY???

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Andy005
Aspiring Expert
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Message 2 of 11

Re: Mobile battery depletion

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The strength of mobile signal could be a factor, do you get a stronger signal with GiffGaff (O2) than BT?

Even so, the difference between 24 and 72 hours seems a lot.

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Distinguished Expert
Distinguished Expert
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Message 3 of 11

Re: Mobile battery depletion

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There are comments regarding volte calling on Android’s newer operating system.

Try disabling volte. Perhaps the signal is weaker with one service provider.

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ColinB1
Beginner
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Message 4 of 11

Re: Mobile battery depletion

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Both about the same strength. And
yes, I agree that the difference is a lot! I originally thoought it might be dodgy SIM so got replacement. Still same issue. Not sure if EE have reduced signal power but it only started hapoening about 6 weeks ago.
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ColinB1
Beginner
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Message 5 of 11

Re: Mobile battery depletion

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Thanks. Signal strength about same. Can't find Volte on the J3. Two networks use different signal type though so perhaps that's the problem. This only started about 6 weeks ago so purchased refurb J3 and replace BT SIM. Still same problem.
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ColinB1
Beginner
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Message 6 of 11

Re: Mobile battery depletion

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Just updating. Switching back to 2G/3G (autoconnect) seems to have cured problem. Thrrefore have to assume 4G needs more power or the, at least, the Samsung J3s do. Thanks for advice, it did help.
PKALVA
Newbie
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Message 7 of 11

Re: Mobile battery depletion

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Hi Colin.

I have the same problem with my wife's J3, when I put my Sky sim in it there isn't a problem.

She only uses it for phoning and texting too - down to 64% this morning after charging last night !!

Has switching off 4G still solved the problem for you ?

Cheers,

Peter

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ColinB1
Beginner
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Message 8 of 11

Re: Mobile battery depletion

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Peter,

Yes switching back to 3G solved the issue. Battery lasts 4 days or more just in standby. Does not seem to affect the phone calls, messages or internet connections and I don't 'stream' films or music anyway.

Hope this helps,

Colin.

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Distinguished Expert
Distinguished Expert
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Message 9 of 11

Re: Mobile battery depletion

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@PKALVA wrote:

Hi Colin.

I have the same problem with my wife's J3, when I put my Sky sim in it there isn't a problem.

She only uses it for phoning and texting too - down to 64% this morning after charging last night !!

Has switching off 4G still solved the problem for you ?

Cheers,

Peter


If the phone is only used for phoning and texting, you could try disabling Wi-fi and location services when the phone is left in standby. Texts and phone calls will still come through. Emails will come through at the next time you enable Wi-fi (and location service).

Distinguished Sage
Distinguished Sage
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Message 10 of 11

Re: Mobile battery depletion

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have you checked to see if phone is set to switch to mobile connection if wifi is poor or unstable?  

settings/connection/wifi/advanced/switch to mobile data

I found that running battery down as phone kept switch from one to the other so switched it off and now ok



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