Battery life
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Posted 15/12/2019 - 16:28
Lithium batteries are only good for a limited number of recharge cycles - I have seen 1000 mooted elsewhere. The deterioration is slow and steady over their lifetime, but in the end they will need replacing.
I have seen figures for electric car batteries, where the same thing applies.
Best regards, John
I have seen figures for electric car batteries, where the same thing applies.
Best regards, John
Link
Posted 15/12/2019 - 18:01
Thanks John, I have just read that lithium-ion batteries have a limited life of 3-5 years even if they are not being used; that means it is possible to buy a “new” battery that has been on a retailer’s shelf for some time so will give a reduced period of use. That is something to think about when looking for a source, a bargain may not be as good as it seems. And having just discharged one battery to zero and plugged it into the charger I have just learned that is the worst thing to do!
Link
Posted 15/12/2019 - 18:07
Li-Ion batteries are at their best at between 30 and 80% charge - for your phone as well as your camera.
They are sensitive the the ambient temperature as well.
That said I have the same set of batteries for my K5ii as when I bought it. Admittedly I haven't used it much very the last couple of years, but they still hold their charge well, unless it is really cold.
They are sensitive the the ambient temperature as well.
That said I have the same set of batteries for my K5ii as when I bought it. Admittedly I haven't used it much very the last couple of years, but they still hold their charge well, unless it is really cold.
Link
Posted 22/12/2019 - 17:30
Not long after I bought my K-3, I bought a USB charger for about 12 quid which came with 2 third party batteries. In use, I don't see any difference between them and the Pentax original.
Just sayin'...
Just sayin'...
Link
Posted 22/12/2019 - 22:20
barkin wrote:
Not long after I bought my K-3, I bought a USB charger for about 12 quid which came with 2 third party batteries. In use, I don't see any difference between them and the Pentax original.
Just sayin'...
Not long after I bought my K-3, I bought a USB charger for about 12 quid which came with 2 third party batteries. In use, I don't see any difference between them and the Pentax original.
Just sayin'...
Haven't seen the original v third party battery discussion for a while!
Bob
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Posted 23/12/2019 - 10:46
davidwozhere wrote:
I use Pentax, Energiser and Maxsimafoto randomly rotated as they deplete and I haven't found a scrap of difference between them .
I use Pentax, Energiser and Maxsimafoto randomly rotated as they deplete and I haven't found a scrap of difference between them .
Yep, agree with davidwozhere
Chris
www.chrismillsphotography.co.uk
" A Hangover is something that occupies the Head you neglected to use the night before".
-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax 150 -450 F4.5 / 5.6, Pentax FA 24 - 70 F2.8
Sigma 100-300 F4, Samyang 14mm F2.8, Sigma 70-200 F2.8,
K5iis - Sigma 17 - 70 F2.8, Sigma 70 - 300 F3.5/F5.6, Sigma 18 - 200 F3.6 / F4.5.
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Posted 23/12/2019 - 14:53
doingthebobs wrote:
Haven't seen the original v third party battery discussion for a while!
Haven't seen the original v third party battery discussion for a while!
No discussion from me. I convinced myself ages ago that OEM's aren't worth the price premium.
Link
Posted 23/12/2019 - 16:17
Gwyn wrote:
Li-Ion batteries are at their best at between 30 and 80% charge - for your phone as well as your camera.
Li-Ion batteries are at their best at between 30 and 80% charge - for your phone as well as your camera.
And for your electric car too. EVs are best left at around 50% charge if not being used, don't know if that also applies to camera lithiums.
John K
Last Edited by JAK on 23/12/2019 - 16:17
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Posted 24/04/2020 - 21:53
Worst thing you can do to a li-ion battery is to run them flat.( from the manufacturer)
They should be charged as soon as you see there power has dropped for best longevity.
I have 3 li-ion brought in 2012 I rotate them ( when I remember) and not had problems with losing power, but from experience with these type of battery I know there life in now short “ after 8years that’s not bad” so will be ordering another three soon”
Pentax super A 35mm.
Pentax K5 apsc
Pentax K1Mkii full format.
They should be charged as soon as you see there power has dropped for best longevity.
I have 3 li-ion brought in 2012 I rotate them ( when I remember) and not had problems with losing power, but from experience with these type of battery I know there life in now short “ after 8years that’s not bad” so will be ordering another three soon”
Pentax super A 35mm.
Pentax K5 apsc
Pentax K1Mkii full format.
Link
Posted 22/08/2020 - 17:27
For myself I always use several batteries, when i don't use my pentax for a while I always remove battery from the camera (I do the same for my car
)

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RobL
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Warwickshire