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Higher performance NP-FW50 battery?

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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Topic: Higher performance NP-FW50 battery?
    Posted: 21 June 2019 at 13:59
I'm disturbed by how quickly the batteries run down on my Nex-6, compared with the A58's NP-FM500H, especially with the Sigma 30mm f2.8 DN A fitted.

Anyone found a source of higher performance/capacity batteries?
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
 



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Snegren View Drop Down
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Post Options Post Options   Quote Snegren Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2019 at 14:25
No, just a source for more batteries.
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jvandegr View Drop Down
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Post Options Post Options   Quote jvandegr Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2019 at 14:31
For proprietary L-ion batteries like the NP-FW50, I've found the manufacturer's batteries always outperform the third-party batteries. This seems to be true for life on a single charge, total battery lifespan, and reliability. The NP-FM500H is pretty impressive - I've managed over 2000 shots on a single charge (almost no LCD use, mostly manual focus). The little FW50 just can't keep up.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2019 at 14:49
Originally posted by Miranda F Miranda F wrote:

I'm disturbed by how quickly the batteries run down on my Nex-6, compared with the A58's NP-FM500H, especially with the Sigma 30mm f2.8 DN A fitted.

The A58 also uses newer, more efficient components.

I haven't noticed that Sigma being particularly power hungry, but I haven't been using it recently. I took a bunch of blurry photos the last time I used it.

I have one extra genuine NP-FW50 I kept from my A5000 (which I sold with a pair of new Vivitar aftermarket FW50s.) That one extra has been enough. I have 4 genuine NP-FW50s total. All came with bodies. I didn't even try the Vivitars.

They don't last long in the A7II either. The A6000 is better. USB charging in body can also be very helpful.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2019 at 15:00
Originally posted by jvandegr jvandegr wrote:

The NP-FM500H is pretty impressive - I've managed over 2000 shots on a single charge (almost no LCD use, mostly manual focus).

The rear LCDs use less power than the EVFs. The EVF-less models all have higher CIPA ratings.

Shots don't take much power. I've taken over 2,000 shots on a single battery with the A6000. That only requires a bit over 3 minutes of run time at 11 FPS. Well twice that much time for the SD writes at 35 MB/s if shooting JPEG--about 23 minutes for raw.

Edited by QuietOC - 21 June 2019 at 15:06
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 07:25
I've never ever run a battery flat on the A58 and rarely bother to take a spare. In fact it's quite rare for the battery to show less than 50% charge at the end of the day. On the Nex-6 the batteries end up below 50% quite often and I've had the empty battery symbol several times (don't think I take any more pics).

Re the Sigma 30mm, my understanding is it has some kind of electromagnet holding focus, since it always rattles with the camera turned off and doesn't with it turned on. I presume this forces it to use current all the time it is on, and not just when it focusses. Do any other Sigma lenses work the same way?
I find the lens rattle (when I have the camera around my neck) and the slow start-up (around 6 seconds) both to be very annoying so I tend to leave it on between shots instead of turning the camera off, and this will obviously affect consumption too.
I will probably send it back today and get an MF lens instead. I can always use the A-mount lenses on the LA-EA1 or 2 when I want AF, or just stick with the SELP1650 which is actually a lot quicker to start up even though it has to motor itself out! I just wish it would remember the last focal length I used it at instead of reverting to 16mm ...
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
 



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Post Options Post Options   Quote SnowFella Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 12:34
Well, it isn't an e-mount lens but my Sigma 150-500 OS HSM eats batteries like mad unless I selectively turn the OS off whenever I'm not shooting.
Would come from the fact that A-mount doesn't seem to have the functionality of turning OS on/off at half press of the shutter, it's permanently on unless the camera goes to sleep.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 15:00
Originally posted by Miranda F Miranda F wrote:


Re the Sigma 30mm, my understanding is it has some kind of electromagnet holding focus, since it always rattles with the camera turned off and doesn't with it turned on. I presume this forces it to use current all the time it is on, and not just when it focusses. Do any other Sigma lenses work the same way?

Yes, all the DN lenses use that AF mechanism.

I think about trying another 35mm F1.8 OSS. It is a nice size and focuses quickly.
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Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 15:40
I have bought 3rd party batteries which supposedly had a mAh rating of almost twice the Sony NP-FW50 (1900 vs 1020)

The first 5 cycles indeed showed a significan higher capacity. But after that it quickly went down and now they're my worst batteries, still usable, but I guesstimate only about 75% of my original Sony batteries.
Also their drain while not in use (not in camera) is worse than the original Sony's

Mind the bandwidth of others, don't link pictures larger then 1024 wide or 960 pix high, see here
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Post Options Post Options   Quote minolta_mutley Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 15:57
The only ones comming in the neibourhood of the Sony FW50's are the Duracel branded ones (half the price of the Sony).
The chinese ones didn't last very long - in the beginning everything seemed fine (they just lost their power much faster than the Sony's) - but one year after the first started failing - and now the last one is RIP after 7 years. The Sony and Duracel's are still fine.
When the bottem of the battery is starting to show some unflatness - it's time to think about 'm getting recycled.
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 16:40
Sony NPA-MQZ1K can be used to power cameras using NP-FW50 batteries (or NP-FZ100 batteries) from upto 4 NP-FZ100 batteries, although that adapter/charger is quite heavy external brick and not thus the most mobile power solution. And bit on the expensive side.
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 22 June 2019 at 21:00
Thanks, guys. I might try the Duracell, but I currently have three miscellaneous batteries that all 'seem' to work and I haven't yet been able to determine how well.
I will try to make up a connector and cycle them on my Lipo charger (the one I use for R/C models) which gives a count of capacity and you can preset the charge and discharge rates. I'll let you know how that goes.
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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