Forget the 9V thing. I assume you are using new batteries? Can you measure the batteries under load?Hi,my camera uses 3 AAA batteries,but after taking less than 20 photos 'battery low' and its off.
Is there any modification which can be done?
Dito on this. If you are using rechargable batteries the running time will be less right off the bat and if even one of the rechargable batteries is "half-in-the-bag" then you might expect to get very poor results. This is what I suspect is happening. A camera issue would be rare, but not unheard of. I'd be inclined to buy 6 new rechargables, a set for use and a set for backup. I might even have a 3 alkalines for the best backup. If you are using rechargables mark the (1, 2, &3), charge the and measure their individual voltages and record the voltages. them take pictures until you get the "low battery" signal and remove the batteries, measure and record their voltages again. Note that one or more be significantly lower than the other. If this is the case I personally would chuck them all unless they are fairly new to begin with.Forget the 9V thing. I assume you are using new batteries? Can you measure the batteries under load?
It's really disposable batteries, not rechargable, right?
My point is I want to know if the problem is your batteries or your camera. Also, what's the camera model?
Yes, you can make a tiny buck converter, but I doubt you could fit it in the battery cavity with a 9V. Also, I agree with the others concerns on the AA batteries.@Adams using buck converter,will it be portable?
Actually its direct from China it has no name, bought out of desperation.I had a camera that did exactly the same, but with rechargable batteries (they have less voltage). It was a cheap chinese model, and it only worked properly when I used disposable batteries. So the model wasn't designed to work with rechargable batteries.
You could put your new batteries in, shoot fotos until it comes up with the battery low message, take them out, put a resistor on them and measure if they are holding their voltage.
Again: What camera model are u using?
Honestly, do not even bother with the 9V battery and buck converter method.Praondevou,i can't measure under load because its ON when the battery door is closed.
@Ionic,i had used Non-rechargeable 2 sets without mixing new and old, but thought it will be costing me alot and thats why i went for the rechargeable ones.
@Adams using buck converter,will it be portable?
mmh, I didn't mean to always carry around an external battery pack. This was only to determine how much current your camera is drawing.thanks,may be i'll try with wires. Like the Nokia li-on batteries of 3.8v-4.5v 1000mAh is better than 9v with a converter.