Originally posted by bobmaxja Forget the AA batteries, that not what you need in a Pro camera. You can argued as hard as you want but that will not happen.
I love my Eneloops but there no place in high end DSLR fronm any brands
Plenty of pro bodies already have a battery grip option which can take AAs. Many use eneloops in their grips on Nikon and Canon, not just Pentax. All I'm asking for is an option inside the body itself, not just the grip. I think AA support in grip is likely going to be there, but probably with 6 rather than 4 AAs.
The LiOn batteries do not last as long and degrade more quickly. This is hard to measure, whereas I can measure my AA batteries easily to see if one is bad - and I can see the actual capacity on my Maha C9000. Something I can't on any Lion battery.
---------- Post added 01-27-16 at 09:15 PM ----------
Originally posted by MadMathMind Newer cameras require more power. You don't think all those extra pixels are powered by air, do you? More pixels on sensor have more transistors and thus need more power! Your K30 gets 30% fewer shots than your K200D but has 50% more pixels. You wouldn't get 1000 shots on those batteries in the K-30.
I don't think the sensor is the main reason for the extra power consumption on the K-30 . It's the design that leaves the LCD screen on at all times. Looks like somebody found a way to turn it off, I will have to try it.
https://www.pentaxforums.com/forums/151-pentax-k-30-k-50/231840-turning-off-k...d-display.html Quote: Let's calculate it... The standard Pentax LiOn D-LI90 is a 1860 mAh battery at 7.2V output. That gives you 13.192 Wh.
That's great, and is true for a new battery, but as someone who has driven electric cars with LiOn batteries, I can tell you that their capacity degrades quickly - range diminished quite a bit on my Nissan Leaf after 3 years, to the point that I returned it (it was leased).
I drive a Volt now which has Lion, but with a gas backup, so I won't suffer as much when the battery degrades.
I very much want to see better battery chemistries.
I wish I had a charger equivalent to my Maha C9000 for LiOn batteries, that could display the real battery capacity for all the various Lion batteries that I have for 5 models of smartphones and several cameras. The Maha C9000 can do charge/discharge cycle with the AA and is very nice with its LCD display.
Quote: Eneloops, the pros especially, are optimized for high drain usage. They won't give you the full 2550 mAh on slow drain. Cameras are moderate drain, so expect a performance hit on those Pros.
I'll figure out soon enough how many shots I get on the Pros - just got them last weekend (actually Amazon rebranded AA high capacity). I got 16 of them. I'm conditioning them now . The first charge cycle was only 2250 mAh. After conditioning I got several up to 2500+ mAh. Interestingly enough that was with a 100 mA charge/discharge cycle (ie. 25 hours), not high drain at all.