Compare Original Sony BG1 with spare battery

of this I have ordered 2 and I will both include here.

Both are loaded each with the external charger of the company VHBW, also available at Amazon:

; Qid = 1329306127 & sr = 8-4

Both replacement batteries fit without problems into the Sony HX9. They are both accepted.
They also go both without problems out again. (I have already read stories about replacement batteries that are not wanted out again: D)
The advantage of this replacement battery is probably the fact that it displays the approximate remaining time of the camera on the display. That does not make the original Sony battery. I can not tell whether it makes any replacement battery type Sony BG1 but.

All batteries fit without problems into the charger. This works very simply and reliably.
When you plug it into the socket, the control LED lights up green. Considering a battery, it is rot'bedeutet Laden'ist the battery fully charged, it is green again.

I have all the batteries in this way fully charged and measured the voltage.
With the Restpannung can be said about how much capacity has been used up. The battery is officially 3.6V on it, I'm assuming that this would be the minimum voltage must allow the camera to work. (I'm not a physicist or electrician).
But in any case is a similar voltage criterion. One can see how resilient is the battery and how quickly it loses charge.

Then have with each battery every 4 times 10 photos with flash made by the same motive. The photos looked and all 10 deleted. After each time the voltage is measured again.
After that, I still 10 times in an object purely and fully zoomed out again and made one photo with flash on the pure zooming.
Then another 10 minutes. Film of the highest quality.

The loss due to storage I measure not. I think that this is not so relevant, because you should always recharge all batteries at night / the night before prior to each trip.
Also, I have not being able to use little desire original battery and a spare battery 2-4 weeks to measure only about the bearing loss ;-)

Here are the dates:

Original Battery: start: 4.21 V
10 Photos: 4,18V
20 Photos: 4,14V
30 Photos: 4,14V
40 Photos: 4,12V
10x zoom + photo with flash: 4,08V
10min max. Quality Movie: 4,00V

Replacement 1: Start: 4,18V
10 Photos: 4,15V
20 Photos: 4,14V
30 Photos: 4,13V
40 Photos: 4,12V
10x zoom + photo with flash: 4,09V
10min max. Quality Movie: 4,00V

Replacement 2: Start: 4,18V
10 Photos: 4,15V
20 Photos: 4,14V
30 Photos: 4,13V
40 Photos: 4,12V
10x zoom + photo with flash: 4,10V
10min max. Quality Movie: 4,01V

From the measurements, it is apparent that both replacement batteries are absolutely equivalent to the original battery.
The battery of the 2nd measurement even seems to be slightly better. That is now not to say that all replacement batteries have this quality, but if times one does not fit, you can 'defective' complain and insist to get a appropriate him as 'not fit' or.

So for the price I would always take spare batteries.
A real improvement will only be well-FG1 Sony battery. According to customer reviews he should hold out longer than the tested here BG1. But the two I tested are properly and cost per 'this FG1. And together they beat him with security.

So I think for now that should be enough. Now everyone can decide for himself what he buys.

I rate this Orignalakku 3.5 stars. It works, fits perfectly, looks quality.
But there is clearly more favorable, the same power supply (for not sooo look amazing), but also fit perfectly.