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Thank you for the info.
It's going very off topic now btw
I know that Amperage probable isn't an isue in case of a camera but if you drain a battery to quickly they will become to hot right and that's no good either.
If I'll do some diy then I'll probable open one of those original packs if they get pretty weak and simply replace the batteries in there and fit the plus to the minus and the contacts, reseal the pack and done.
$10 vs €30 is easly paid back this way.
I would still be able to use the pentax charger, it's designed for li-on batteries so that wouldn't be a problem.
If you can fit 6 AA batteries in the K7 grip there is enough room to hobby about and try how high of a capacity you can get.
It's going very off topic now btw
I know that Amperage probable isn't an isue in case of a camera but if you drain a battery to quickly they will become to hot right and that's no good either.
If I'll do some diy then I'll probable open one of those original packs if they get pretty weak and simply replace the batteries in there and fit the plus to the minus and the contacts, reseal the pack and done.
$10 vs €30 is easly paid back this way.
I would still be able to use the pentax charger, it's designed for li-on batteries so that wouldn't be a problem.
If you can fit 6 AA batteries in the K7 grip there is enough room to hobby about and try how high of a capacity you can get.
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 21:27
johnriley wrote:
[But we know that this is the same battery, don't we? So this is a spurious point really.
There is only one solution, who wants to break open and compare the battery inside the NP-400 and the Pentax one?[But we know that this is the same battery, don't we? So this is a spurious point really.
Any volunteers
golfdiesel wrote:
Here is a cheaper 18500:
http://www.batteryjunction.com/ultrafire-18500.html
These are protected cells which are protected agains overcharging and short circuits.
They are more expensive though since two of those will be $15 but those are 1600mAh and protected.Here is a cheaper 18500:
http://www.batteryjunction.com/ultrafire-18500.html
These are protected cells which are protected agains overcharging and short circuits.
What about theses? link
1800mAh protected, two bateries $8.58
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 20:45
Great work Unlocker!
so that are 18500 batteries
Diameter 18.3 mm (Max 18.4), Height: 50.0 mm (Max 50.3) you see Remco I learn fast
You don't have such high capacity of those though
but still two new 1400mAh are $7.80, I don't know for how much new batteries go for the pentax.
so that are 18500 batteries
Diameter 18.3 mm (Max 18.4), Height: 50.0 mm (Max 50.3) you see Remco I learn fast
You don't have such high capacity of those though
but still two new 1400mAh are $7.80, I don't know for how much new batteries go for the pentax.
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 20:26
golfdiesel wrote:
This reminds me of the program on the telly named Kassa, they talked about malls own brand products and those of AAA brand products and it apears that most of those products are made in the same factory and that only the package material is differend.johnriley wrote:
So you wouldn't use a Samsung SLB-1674 either? (that is the battery which came with the GX-10 and GX-20).Quote:
But the advantage for the K10D and K20D users is that the batterie in those camera's is just the "old" NP-400 battery which Minolta used
It might fit and it might work, but it isn't the same battery. As repeated many times! But the advantage for the K10D and K20D users is that the batterie in those camera's is just the "old" NP-400 battery which Minolta used
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 20:02
Sorry Jeanette that we are trying to improve your photo constantly, probable the third one will be even better and I've no idea how they have done it.
[IMG]http://i282.photobucket.com/albums/kk244/Anvh/3559150663_5efb02a5cf_bxxx.jpg[/IMG]
Amin I believe you run a noise reduction software over it what did you used?
[IMG]http://i282.photobucket.com/albums/kk244/Anvh/3559150663_5efb02a5cf_bxxx.jpg[/IMG]
Amin I believe you run a noise reduction software over it what did you used?
Comment by Anvh posted on Insects in Flight at 24/05/2009 - 19:51
golfdiesel wrote:
two off those will give you 7,4 volts if you connect them in series. the capacity stays at 2600mAh.
You will only get to 5200mAh when you connect them parallel but that leaves the voltage at 3,7V.
Didn't pay attention at physics class Stefan?
it's already 6 years ago and electric wasn't my type of physics to begin with. It's indeed a big mistake that one two off those will give you 7,4 volts if you connect them in series. the capacity stays at 2600mAh.
You will only get to 5200mAh when you connect them parallel but that leaves the voltage at 3,7V.
Didn't pay attention at physics class Stefan?
I failed the exam 2 times so that say enough I believe
The great thing is though that I've worked on some of the electrical systems of a couple Boeing 747 and one 777, happy flying
Edit:
so the question is if they will fit inside the K10D,
If they just deliver pwer to the contact and stay inplace I'm already happy. When you look what a battery pack cost it sin't really in comparison to be honest.
They also have batterypack of 7.4V 10000 mAH, might be interesting to see if they fit in a battery grip
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 19:33
1 AA Li-ion Cylindrical Rechargeable Cell: 3.7V 2600mAh link
$15.95
So two of those would mean 5200mAh, sound very interesting when comparing to 1620mAh battery pack from Pentax.
So do anyone have a dead battery for me?
$15.95
So two of those would mean 5200mAh, sound very interesting when comparing to 1620mAh battery pack from Pentax.
So do anyone have a dead battery for me?
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 19:11
iceblinker wrote:
I'm surprised you could think that because the battery performs better than FOUR of the best NiMH AA cells, let alone two.
The K20D battery contains two Lithium ion cells. Li-Ion is better than NiMH in terms of power to weight ratio, power to size ratio and self discharge rate.
I know Pete, Remco told me all about it I'm surprised you could think that because the battery performs better than FOUR of the best NiMH AA cells, let alone two.
The K20D battery contains two Lithium ion cells. Li-Ion is better than NiMH in terms of power to weight ratio, power to size ratio and self discharge rate.
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 19:03
Yes good one Remco didn't thought about the voltage
Comment by Anvh posted on In your hands the K-7 vs K10D at 24/05/2009 - 18:32
