Battery Springs:
- Thread starter MarNav1
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Marduke
Flashaholic
Hardware store...
DonShock
Flashlight Enthusiast
I found a great assortment at a local ACE hardware store a while back. Unfortunately, they've closed down now.
DM51
Flashaholic
Incidental info on this subject - I asked AW recently what a safe pressure would be for springs on his cells, and he said a max of 15 lbs. Just something to bear in mind when choosing springs.
Do you have a link?
Do you have a link?
Can't link as the URL contains session/search info, but you can go to Mouser's website and click the Power link in the "Product Finder" at left, then go into "Battery Holders, Snaps & Contacts". From there, use their parametric search to find what you're looking for.
oO
sysadmn
Enlightened
Ace and Home Depot for C-D range cells; they also have a few that would work with AA/CR123a. They also have a pretty good selection of O-rings, if the one you want is a common plumbing size
Keep in mind that many springs have significant resistance, impacting your delivered amperage. For example the springs in those AA black plastic 2/4/6/8 cell holders that are sold all over.
sysadmn
Enlightened
If you're pushing enough amps that it makes a difference (and LuxLuthor often does :-0 ), you can bypass the spring with a loop of thick gage copper wire, or a length of desoldering braid.
milkyspit
Flashlight Enthusiast
Mouser and Digikey both stock springs and battery holders of various sorts. McMaster might be another source, look for conical springs... there are lots of possibilities at these websites.
tvodrd
*Flashaholic* ,
I've probably dealt with over a dozen spring manufacturers at work over the years, and Century Spring has by far the largest selection. If you're anal, most of the stainless steel ones have enough nickel to permit gold electroplating.
Larry
Larry
Mr Happy
Flashlight Enthusiast
What about copper plated/copper clad springs? That would make them easier to solder, and I guess improve the conductivity?
Would that be a custom item, or might there be standard parts? I quick Google turned up nothing.
Would that be a custom item, or might there be standard parts? I quick Google turned up nothing.
donn_
Flashaholic
Interesting topic.
I've been noodling some slick "spring caps" to protect the battery from spikey springs.
Is there such a thing?
I've been noodling some slick "spring caps" to protect the battery from spikey springs.
Is there such a thing?
Mr Happy
Flashlight Enthusiast
I have a flashlight with battery contacts a bit like this:
It seems like a really nice design to me. Unfortunately they went and ruined it with an utterly craptacular on-off switch.
The perfect flashlight: low resistance battery contacts and conductors (not steel!); a proper switch; an orange peel reflector; adjustable focus; lightweight plastic body with rubber grip. Has anyone ever seen such a thing?
It seems like a really nice design to me. Unfortunately they went and ruined it with an utterly craptacular on-off switch.
The perfect flashlight: low resistance battery contacts and conductors (not steel!); a proper switch; an orange peel reflector; adjustable focus; lightweight plastic body with rubber grip. Has anyone ever seen such a thing?
