Roche F22 and batteries?

5 posts / 0 new
Last post
380long
380long's picture
Offline
Last seen: 7 years 4 months ago
Joined: 05/07/2012 - 10:48
Posts: 21
Location: Pennsylvania
Roche F22 and batteries?

I just received my Roche F22 with extender tube and had a question about batteries? I bought this since I had a bunch of 26650 batteries sitting around, all of them are unprotected. So here is my question is it dangerous to use this light with 2 unprotected 26650 batteries???

I can't remember the last time I bought a flashlight I "NEEDED".

scaru
scaru's picture
Offline
Last seen: 3 years 2 months ago
Joined: 03/22/2012 - 13:36
Posts: 6946
Location: Virginia

Depends on your definition of dangerous. >) Just make sure the 2 cells are well matched and are the same voltage and you should be fine. Also make sure you don't overdischarge them. 

380long
380long's picture
Offline
Last seen: 7 years 4 months ago
Joined: 05/07/2012 - 10:48
Posts: 21
Location: Pennsylvania

When you say overdischarge them do you mean running then down until they are empty?

I can't remember the last time I bought a flashlight I "NEEDED".

scaru
scaru's picture
Offline
Last seen: 3 years 2 months ago
Joined: 03/22/2012 - 13:36
Posts: 6946
Location: Virginia

Yep, I would recharge them at around 3.6 volts, but they should be fine down to 3.0 volts. 

mallit
Offline
Last seen: 7 years 4 months ago
Joined: 08/29/2012 - 15:22
Posts: 6
Location: New Zealand

Im curious on this one.
What happens if you over discharge the batteries????
I always hear about unprotected being dangerous, but I have always pondered what “dangerous” actually is.
Is it a little “pfft” with a little smoke or is it a thermal nuclear meltdown.

When ever I buy a multi cell(eg skyray king) light I usually a set of batteries to go with it so they all get the same discharge-charge.