"Jeff Liebermann" wrote in message
...
On Wed, 1 Jun 2011 09:06:40 -0700, "William Sommerwerck"
wrote:

Much to my surprise, I discovered that the rechargeable cells powered the
unit as long as the throwaways. This means I'd break even after only 10
recharges. Even if I was off by 50%, I'd still need only 20 recharges.

Headphone amps sound like a light load. Got a number for the average
current drain?

The operative word here is STAX -- as in high-voltage electrostatic
earphones. I never measured the drain, but neither set of cells lasted much
more than four hours.


This is why I carry multiple sets of NiMH cells for my flashes and other
heavy-drain devices. With multiple sets, I don't have to worry about
rapid
recharging, and can stick with 0.2C or 0.3C.

I've had problems with self discharge in previous NiMH batteries. So,
I have a 117VAC/12DC fast (4C / 15 min) charger in the camera bag.
When I need to shoot lots of photos, I give it a quick charge. Maybe
the LSD (low self discharge) NiMH will eliminate this problem.

We still don't have a rational answer as to why some people don't have
problems with rapid self-discharge.

I don't shoot every day, so I can charge-up the night before. I have two
chargers, which makes things easier.