BLF Interest list for Very High Current Beryllium Copper springs Pt1(ENDED)

Now, the harder step will be Canadian customs.

But it should go well too. They’re only springs, and they didn’t react to an order of 350 Fasttech Springs, so it should go fine.

I’m going to be calling it a commercial sample, since technically, for springs, it is a small order :beer: :smiling_imp:

UPDATE 6

Payment sent, and order has been started. Let’s get this GB ball rolling.

1. 1mm wire BeCu C17530 38% IACS has been ordered.

Can I get in on this?

I’d like 50 please.

Thanks!

50 big or 50 small?

Anyway, I will go to sleep.

See you tomorrow!

50 big AND 50 small

Thanks for making these available!!

10 small, 10 large springs, thanks!

Nice work BlueSwordM. :+1:

Protected batteries with high current springs? :confounded:

It’s not ideal, but there are protected cells with 15A and 20A circuits.

Where Jason, links please…

Acebeam’s high drain 18650 and 21700 batteries are protected and do more than 15A.

I don’t have time to look them up right now, but I’ll try to remember where I saw them.

I think it was the 18650 from Imalent that did 15A which uses a 30Q.

Then the 20A was a 21700 5100mah from Acebeam.

Then I think there was a 26650 from Orbtronic that was 15A.

I think there were a few more and I know I wrote them in a thread, but I can’t remember where. I wish I could do a search for things I wrote across all the threads.

I’m not particularly into protected cells, but I’ll try and find the others later today if your interested.

That’s a good lead, I’ll see if I can find them based on that. I don’t use protected either but if there are some really good ones out there I wouldn’t mind having some for testing and sharing purposes. While I don’t normally have someone else using my lights it would be nice to be able to have a cell that could run em as they’re built to run and yet not be killed by someone getting over zealous. :wink:

You can :wink: , go to your account and then “my post” type in what you said or keywords under search comments and apply.
It only searches in your post and only the keywords you typed. :stuck_out_tongue: :+1:

Ok, so now that the sample testing is complete ( :wink: ) I’ll take 50 large.

Yes, it worked. Thanks

I found one more battery:

This was from the L6 thread. As always, just because a manufacturer says it’s battery can do 15A or 20A doesn’t necessarily make it true. I would do a search to see if they have been tested before I bought them.

List has been updated again.

We are at 1666 big springs, and 1182 small springs.

Now, there are actually 20A capable protected cells?

They must be using quite powerful MOSFETs to achieve this, with especially low gate resistance.

I will take 20 big and 20 small.

We are at 1686 big springs, and 1202 small springs.

Appearantly. Keep in mind that the Acebeam 5100mah 21700 is a high capacity cell, not a high drain. I’m not sure what it’s base cell is, but it’s safe to say it’s not rated for over 10A continous (it might be a Samsung INR21700-50E). The EC65 light it’s used in draws about 15A, but only for a minute or less at a time. The protection circuitry still adds a bit of extra resistance so the voltage sag is greater compared to an unprotected cell. Both of these reviews have interesting battery tests. Maukka’s EC65 review. Toobadorz EC65 review.

Note that the EC65 has single springs on each end while drawing 15A. This light could definitely use these Beryllium Copper springs!