Got my 589nm, just have one question.

So I just got my 589nm which I am super exited about. The only problem I have is battery related. I had an 18650 battery, but I havent seen it for a while. So I am stuck with cr123a batteries. I was wondering if I could temporarily use 2 cr123a batteries instead of 1 18650 battery.

I wouldn't take the risk if I were you. Most boost drivers shouldn't get over 5.5v, you might fry that thing. Just be patient and wait for a new 18650 or you may regret it.

Alan

Pi R Squared said:

I wouldn't take the risk if I were you. Most boost drivers shouldn't get over 5.5v, you might fry that thing. Just be patient and wait for a new 18650 or you may regret it.

Alan

Click to expand...

Yeah you're right, any idea where I can buy (or even harvest) one locally?

some already mostly depleted 123's would probably work(reading lower than 2.7V) but then the issue of weather they would still be able to supply the current at that level of discharge might be an issue.

I would just get a 18650.

or just try one cr123 with a space of some kind, even a wad of tinfoil would work (not super great, but it would work), or a nail or something of the sort. Definitely better to just get an 18650 though. LarryDFW sells nice panasonic 18650's, would be worth PM'ing him to see if he has any in stock

Do NOT use 2 cells! As you might know, 589 pointers have an IR pump. This operates at ~2V, so the most common driver is linear. You triple heat dissipated in the driver by doubling the voltage, and it will not like that one bit.

FlutterPie said:

Yeah you're right, any idea where I can buy (or even harvest) one locally?

Click to expand...

I have yet to find a store that sells them, and I have looked, so forget about finding one locally, just buy them online. You can harvest them from most laptop batteries except a few newer ones that are very thin that use different batteries.

Alan

If you have an e-cig store near by, you might find a battery there. Those are the only stores I've seen that carry li-ion batts.

Here are all the Batteries Plus stores in Ohio. I bet they have them in a pinch... not the best quality, but work when you need instant gratification.


Akron/Montrose OH 3900 Medina Rd 330.670.6161
Bellbrook OH 4496 State Route 725 937.433.9222
Cincinnati OH 12131 Royal Point Dr 513.683.6300
Cincinnati OH 7850 Beechmont Ave 513.474.0895
Columbus / Clintonville OH 5010 N. High St 614.431.2665
Columbus / Reynoldsburg OH 5960 Scarborough Blvd 614.577.1998
Dayton OH 3515 York Commons Blvd 937.424.2525
Dayton OH 206 Springboro Pike 937.938.5177
Gahanna OH 4681 Morse Road 614.498.2000
Grove City OH 2251 Stringtown Road 614.594.5205
Hamilton / Cincinnati OH 4887 Princeton Rd 513.737.2444
Hilliard OH 4514 Cemetery Rd 614.850.8090
Lewis Center OH 8593 Columbus Pike 614.396.5490
Macedonia OH 746 East Aurora Rd 330.467.8100
Mayfield Heights OH 6365 Mayfield Rd 440.449.5555
Springdale OH 123 W. Kemper Road 513.453.4080
Springfield OH 1780 N. Bechtle Ave 937.398.0044
Toledo OH 3128 Secor Road 419.724.5888
West Chester OH 7431 Tylersville Road 513.456.7778

Surprisingly I did find one locally. Bulldog battery to the rescue.