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06-13-2013, 05:47 PM   #1
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How long before I lose time and date settings?

I will have to charge my battery soon and I'm afraid that i will lose my time/date settings. My plan is to order another battery that I can swap into the camera while the first one charges. How many seconds do I have between battery swaps before the camera loses its settings?


06-13-2013, 06:07 PM   #2
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Most DSLRs utilize an electric double layer super capacitor or 'supercap'. They'll normally supply power for the settings for day or so. Certainly long enough to re-charge your lithium ion rechargeable that does the main work. So get a spare battery, swap when necessary as a convenience or just have one and recharge without fear unless you are not near a power source for a couple of days.
06-13-2013, 06:58 PM   #3
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A cheaper alternative to the OEM battery is to get the optional battery holder D-BH109 and use Energizer Ultimate Lithium AA's. They last longer than the standard battery.

06-14-2013, 06:20 AM   #4
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It's definitely OKAY to have K-30 two days without battery. Did not try more days - never had any need.

06-14-2013, 11:13 AM   #5
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Many thanks to everyone who responded! Yes, I am familiar with SuperCaps and I can understand how they can keep a simple low power time of day clock. All of my past digital cameras must do not have these (cost cutting?) so I lose all that information pretty quick. It's good to know Pentax included one here.

Last edited by 6BQ5; 06-14-2013 at 11:36 AM.
06-15-2013, 07:35 AM   #6
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Good to know. I wondered about this a while back, but it's never been an issue since I ordered a spare battery at the same time as the camera. I later got an AA adapter, great thing to have. I use Duracells, the last 2 sets of Energizers I got, one lasted about 2 months and refused to take a charge, the other never took a charge from the first day. Both got so hot I blistered my fingers trying to get them out of the charger. Only did that once...Switched to Duracells and never looked back. One set is 5 years old and just now starting to weaken, the other 2 sets are in good shape. One is a year old, the other about 3.

I've never left the K30 without a battery for more than a couple of minutes, ditto for the K-x. So it hasn't become an issue, but I had wondered about it. My Samsubng P&S would lose date and time after a few minutes but I never timed it.

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