I think it will be a long time before we have any definitive answers on
some of these questions. In the meantime I'm just going to use all 3
brands. I can add one more data point. The camera is right now running
on the Oly battery which was charged in the Progo charger.
Chuck Norcutt
On 7/3/2013 4:16 PM, Moose wrote:
> On 7/2/2013 2:50 PM, Chuck Norcutt wrote:
>> I think I'd stick with the Progo but only because the Progo and its
>> charger are 100% Oly compatible. I alread knew the Progo battery talks
>> politely about its status to the camera.
>
> Something popped into my mind about this. What if ... Progo has not entirely
> correctly decoded the Oly battery-camera
> communications?
>
> They claim greater capacity, yet deliver fewer shots. As I/we have assumed,
> that could be because their capacity rating
> is wrong - or Oly is using larger mAhs. :-)
>
> It could also be because the battery communication with the camera isn't
> quite right, and the camera is shutting down
> for insufficient battery power when there is, in fact, adequate power for
> many more shots.
>
> As the camera does work with batteries that make no attempt to communicate
> with it, it must have two means of
> determining when a battery has run down. One would be based on intelligent
> battery/camera communications, the other
> presumably on simple battery voltage. Oly would have at least two incentives
> to set that voltage high. They don't want
> it to die 'dumbly' in the middle of shutter operation, image writing, etc.
> and they would like to sell many of their own
> batteries. (Why they price their own so high is a mystery to me. It they were
> $30, I'd have two or three of them,
> instead of the one Oly that came with the camera and three third party
> batteries.)
>
> As the Progos get about the same number of shots as un-decoded batteries,
> it's possible the camera is shutting down
> based on voltage alone, not camera comms. My Wasabi batteries do show full
> when recharged and lower amounts left on the
> camera battery indicator as they are used. That must be based on voltage
> alone, and is impossible to distinguish without
> a lot of testing from a smarter communication.
>
> Is it possible that Progo has only decoded the battery/charger communications?
>
> It's at least a theory that accounts for the apparent anomalies between rated
> mAh capacity and no. of shots capacity.
> Could also explain why more third party makers don't as yet sell 'decoded'
> batteries, because they know they've not
> cracked the comms completely.
>
> I'm not saying one should not (or should) buy the Progos. They do, in fact
> charge on the Oly charger, and deliver a lot
> more shots for the $ than the Olys. Also, I only bought one, sans charger, so
> I know nothing about the charger.
>
> Theoretical Considerations Moose
>
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