battery longevity question

Michael Piziak · 07-11-2014, 07:35 AM

How long does your K-r battery last?

I have 2 batteries (a Promaster and a Wasabi) and they seem to last a little longer than when I use to use AA batteries.
I have a friend that has a k20 and she says her batteries last for ever - like a month or two.

Adam · 07-11-2014, 05:13 PM

The K-r's Li-ion batteries have a lower capacity than the K20D's, so that would make sense. However, third-party batteries also tend to offer slightly worse performance than oem batteries, so if you're dissatisfied with the longevity I'd recommend picking up a Pentax battery.

Na Horuk · 07-12-2014, 11:16 AM

Originally posted by Michael Piziak

I have a friend that has a k20 and she says her batteries last for ever - like a month or two.

Well, also depends what you do. Screen brightness, photo viewing, video recording, live view, how much processing is done in-camera, how many photos you take.. all of this affects battery life. Possibly even outside effects like temperature

photolady95 · 07-12-2014, 12:07 PM

And how often you use the onboard flash. In my K-30, I've found the
Li-ion Pentax and off brand, neither battery lasts as long as using the adapter battery with Eneloops.

Fire Angel · 07-15-2014, 03:41 AM

My KR can take hundreds of photos on one charge of the Pentax block battery, around 150-350 depending upon temperature, how much I use the screen etc. Switch the screen off and you get much longer battery life. In addition I rarely use the flash which will also have a significant impact on how many pictures you will get per charge. I do have a couple of the cheap AA adaptors and I have bought some good quality rechargeable batteries, a set of four AA batteries gives a better battery life than the Pentax block does. I have taken over 450 photos on one charge of the AA batteries, though in cold conditions that may drop to below 200. Low temperatures have a substantial effect upon battery life.

07-11-2014, 07:35 AM	#1
Michael Piziak Closed Account Join Date: Dec 2013 Location: West Virginia Posts: 2,815	battery longevity question How long does your K-r battery last? I have 2 batteries (a Promaster and a Wasabi) and they seem to last a little longer than when I use to use AA batteries. I have a friend that has a k20 and she says her batteries last for ever - like a month or two.

07-11-2014, 05:13 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	The K-r's Li-ion batteries have a lower capacity than the K20D's, so that would make sense. However, third-party batteries also tend to offer slightly worse performance than oem batteries, so if you're dissatisfied with the longevity I'd recommend picking up a Pentax battery. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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07-12-2014, 11:16 AM	#3
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by Michael Piziak I have a friend that has a k20 and she says her batteries last for ever - like a month or two. Well, also depends what you do. Screen brightness, photo viewing, video recording, live view, how much processing is done in-camera, how many photos you take.. all of this affects battery life. Possibly even outside effects like temperature

07-12-2014, 12:07 PM	#4
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	And how often you use the onboard flash. In my K-30, I've found the Li-ion Pentax and off brand, neither battery lasts as long as using the adapter battery with Eneloops.

07-15-2014, 03:41 AM	#5
Fire Angel Senior Member Join Date: Apr 2014 Photos: Gallery \| Albums Posts: 136	My KR can take hundreds of photos on one charge of the Pentax block battery, around 150-350 depending upon temperature, how much I use the screen etc. Switch the screen off and you get much longer battery life. In addition I rarely use the flash which will also have a significant impact on how many pictures you will get per charge. I do have a couple of the cheap AA adaptors and I have bought some good quality rechargeable batteries, a set of four AA batteries gives a better battery life than the Pentax block does. I have taken over 450 photos on one charge of the AA batteries, though in cold conditions that may drop to below 200. Low temperatures have a substantial effect upon battery life.