D3100 - Asking Date Time Settings Every time I switch

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Ranjith071

New member
Hey,

My D3100 is asking to set up the date and time every time i am loading the battery to use the camera, Any Idea? Is there any internal battery like CMOS Battery in Computer that I need to change?
 
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SteveH

Senior Member
There is an internal battery that keeps the settings and time going while the main battery is out, but it is not user-changeable.

How often & for how long do you take the main battery out? I ask as the main battery is used to charge the smaller internal battery. Try giving your main battery a full charge, put it in the camera and leave it in for days and see if it charges the internal one - If it doesn't then it will be a repair job to have the internal battery replaced.
 
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nickt

Senior Member
They say the internal battery should hold for a month or more if fully charged. Like Steve said, it can take a couple of days to fully recharge the internal battery from the main battery. Evaluate your usage with this in mind to decide if you have a problem. I seldom use my d3100 anymore, but I keep the main battery installed all the time.
 
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aroy

Senior Member
If the time between "NO Main Battery" is more than a month, then you will rectify the problem by just keeping the main battery for a few days. Otherwise your internal battery is gone. Happens some times. Similar case was with my desktop PC. The problem stopped once the battery was replaced.
 
Woodyg3

Woodyg3

Senior Member
Contributor
TonmoyS said:
Do we need to keep the main battery installed while the camera switched off for 2 days?? Will these resolve the issue?
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An old thread from 2015, so the original poster is not likely to see.

Yes, a battery needs to be in the camera all the time. A day or two will not likely be a problem, but longer will cause problems like the original poster described.
 
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TonmoyS

New member
Woodyg3 said:
An old thread from 2015, so the original poster is not likely to see.

Yes, a battery needs to be in the camera all the time. A day or two will not likely be a problem, but longer will cause problems like the original poster described.
Click to expand...
Yeah, so to regain the health of the internal battery i need to keep the main battery in the slot for atleast a couple of days but will all this work if i can switch the camera off and leave the battery in it because i'm too concerned to leave the camera switched on for a few days.
 
BF Hammer

BF Hammer

Senior Member
TonmoyS said:
Yeah, so to regain the health of the internal battery i need to keep the main battery in the slot for atleast a couple of days but will all this work if i can switch the camera off and leave the battery in it because i'm too concerned to leave the camera switched on for a few days.
Click to expand...
The camera will go to a low-power mode if left on and not used. I have left DSLR's on for hours at least. I expect I have sometime in the past accidentally left a camera body turned on for several days in a storage bag.
 
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