Electronics and Battery Brands

As a side note, I've been working on a project (consulting) for over 15 years that is battery-powered in very remote locations. The manufacturer of this product will only use Energizers, not Duracell, in his product. He doesn't really say why, other than to say that he has found them to be better for his application.

David Erbas-White

Stephen Corban wrote:

Are you talking about 9v batteries?

From what I've found, Energizers are cheaper and have higher capacity.

Energizer 9v 625mAh (from Energizer website) Duracell 9v 580mAh (from Mouser Electronics website catalog)

I dug this information up a couple months ago while looking at 9v rechargables for my wireless video TX. Ni-Cad and Ni-MH 9v rechargables have a much lower capacity than any of the alkalines, so I just stuck with Energizers.

Be sure you're comparing like with like though. Some battery technologies are suited to high discharge rates, some to lower discharge rates. All will have different capacities at different rates. Alkalines seem to be much of a muchness. I'll tend to use a new alkaline for the altimeter every flight and if it hasn't had too much time between turn-on and recovery I'll tend to use that battery for the video payload on the next flight.

I've recently been using ground power packs via an umbilical with a pull-out for non-essential systems plus small on-board packs, just large enough to last the few minutes of flight. I expect to be moving this technology on to powering at least one of my altimeters in the next year.

Chris

what about Li-Ions?

I go with the ones with the bunnies. I like the bunnies.

do Li-ons eat bunnies ?

Eveready Lithium 9v batteries pack about 1200mAh, but they cost about $8-10 each from what I've seen.

tim

Understood. I was comparing regular Energizer alkalines with regular Duracell alkalines.

I didn't compare the Eveready E2 with the Duracell Ultra because I didn't find any capacity data on the Ultra. I didn't find anything on Rayovac's capacities either. At one time I had the specs on GP (Gold Peak), but I lost them.

I did find these:

Energizer E2 655mAh Duracell Procell 565mAh

Yes, but only females...The males give them hare balls.

You owe me a keyboard, sir. .......and some paper towels for the monitor.

-- Eric Benner TRA # 8975 L2 NAR # 79398

sweet! :)

- iz

Chris Eilbeck wrote:

Sorry about that. :)

I'll send you the paper towels if you don't mind a little propellant on them :)

ba dum bump

- iz :)

Tim wrote:

What sort of shipping charges does M-C have? That could drive up the cost considerably unless bought in significant quantities.

I would guess it is an application thing. With the myriad of toys in this place, I've found Dcell to be the winner.

Joel. phx

David Erbas-White wrote in news:uQpFb.38411$BQ5.36077@fed1read03:

It seems to me that Duracells LEAK more often than Energizers. Just my personal observation.