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04-28-2021, 06:23 PM   #1
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AA battery life

Hey folks,

Heading out this week on a trip - lost my charger at some point - I have two dead D-Li90's. Isn't that always the way things go before a trip. I'm out of practice since we haven't been able to go anywhere in so long I guess. No hope to get a new charger before we leave.

Luckily, I have the battery grip and AA tray - what's the battery life when powering the K-1 II with 6xAA batteries? Just wondering how many I should plan to buy on the way to the trip.

04-28-2021, 06:36 PM - 1 Like   #2
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From my memory of Pentax K200D : four Lithium AA Batteries lasted around 1000 shots while four regular AA lasted less then 200. Obviously numbers for K-1 would be different but relatively it should be the same.
04-28-2021, 06:42 PM   #3
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Thanks! I wonder how AA rechargeables last - I have a pile of the black Eneloops I can use too. I'll plan on taking the Eneloops and if need be, pick up a pack of Lithium AA's at a Walmart or something at the destination.
04-28-2021, 07:24 PM   #4
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QuoteOriginally posted by brofkand Quote
Thanks! I wonder how AA rechargeables last
You can probably make a guesstimate based on the mAh rating of the Eneloops you have. A quick web search suggests these may be 2,000 mAh, whereas the D-DLI90 is rated at 1,860 mAh. Theoretically the life of the Eneloops should be similar, unless the voltage decays much faster.


Last edited by reduno; 04-28-2021 at 07:32 PM.
04-28-2021, 07:32 PM   #5
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There are generic camera battery chargers. One size fits all. I have an Inca universal charger bought in Sydney. Not sure what the equivalent might be in the US.
04-28-2021, 08:04 PM   #6
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My experience with a K50 and 4 AA alkaline is about 100-150 shots. 4 AA lithium about 700-800 shots. Turning of the rear display, flash, gps, and anything else that uses power that you don't need will extend battery life. Even switching to manual focus will save a lot of power.
04-28-2021, 08:08 PM   #7
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QuoteOriginally posted by brofkand Quote
Hey folks,

Heading out this week on a trip - lost my charger at some point - I have two dead D-Li90's. Isn't that always the way things go before a trip. I'm out of practice since we haven't been able to go anywhere in so long I guess. No hope to get a new charger before we leave.

Luckily, I have the battery grip and AA tray - what's the battery life when powering the K-1 II with 6xAA batteries? Just wondering how many I should plan to buy on the way to the trip.
I found with generic rechargeables it was no where near as good as dli90s

04-28-2021, 09:50 PM   #8
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QuoteOriginally posted by DWS1 Quote
My experience with a K50 and 4 AA alkaline is about 100-150 shots. 4 AA lithium about 700-800 shots. Turning of the rear display, flash, gps, and anything else that uses power that you don't need will extend battery life. Even switching to manual focus will save a lot of power.
Although I never actually took a count, this is also my gut feeling about AA lithium (Energizer) vs rechargeable eneloop AAs. An order of magnitude difference.
04-28-2021, 11:30 PM   #9
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For traveling I always use The Energizer Ultimate Lithium , they just last forever.
They are not cheep but worth every cent , not really comparable with any other AA.
04-29-2021, 12:20 AM   #10
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Eneloops are better for the planet too... You can charge them more than 500 times...
04-29-2021, 02:12 AM   #11
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I actually switched from Eneloops to LADDA ( IKEA ) , they perform much better , I think.
I have and use a large number of AA and AAA , I still have 1 set ( 4x AA ) Eneloops left.
But , while traveling I use The Energizer Ultimate Lithium only.
I know , it is not politically correct but they just last forever.
04-29-2021, 04:42 AM   #12
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QuoteOriginally posted by brofkand Quote
Hey folks,

Heading out this week on a trip - lost my charger at some point - I have two dead D-Li90's. Isn't that always the way things go before a trip. I'm out of practice since we haven't been able to go anywhere in so long I guess. No hope to get a new charger before we leave.

Luckily, I have the battery grip and AA tray - what's the battery life when powering the K-1 II with 6xAA batteries? Just wondering how many I should plan to buy on the way to the trip.
Not sure about how many shots you get but lithium's will power more shots followed closely by Eneloops (from my flash use i would say 75% to 70% of lithiums), and then much further down good AA's Maybe 1/2 to a 1/3 of lithiums.
04-29-2021, 05:26 AM   #13
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QuoteOriginally posted by wstruth Quote
Not sure about how many shots you get but lithium's will power more shots followed closely by Eneloops (from my flash use i would say 75% to 70% of lithiums),
The Energizer Ultimate Lithium AA batteries are rated at 3,000 mAh. Assuming the Eneloops are rated at 2,000 mAh (66% of the capacity), your 70-75% estimate for the number of flash shots seems reasonable.
04-29-2021, 07:41 AM   #14
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I have been using LADDA for a long time and they are really amazing, I highly recommend them.
04-29-2021, 09:54 AM   #15
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The Eneloop Pro grey ones are rated 2600mAh. I find they outlast all other rechargeables I have, except Lithium. I used them in flashes extensively.
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