"splitting" a CR-V3 li-ion?

[TheInvader]

I have heard over at the marketplace that you can split a cr-v3 li-ion battery.
What cells are in there? I realize that it's probably unprotected, but i would guess the 10440/14500's are in them in parallel.

I don't care how much they are, because shipping and wait for any li-ion battery sucks. i'll rush out and look at one tomorrow.

 

[45/70]

I've never taken one apart (I only have CR-V3 primaries), but as far as I know, they are 3.7 Volt 14500's. They may not have shrink wrapping on them, and I'm pretty sure they'd be flatops, more than likely with tabs, welded together. Keep that in mind, and also they're really expensive. Of course, if you have access to a cheap source, it'd maybe worth looking into.

Dave

 

[ltiu]

I have never taken apart rechargeable CR-V3.

I have taken apart primary CR-CV3 batteries. There are 2 AA sized 3v batteries inside. Same chemistry as a CR123, just different size.

The AA sized 3v lithium primary batteries are perfect for a Fenix L1D. Lights up like a L2D/P2D.

The positive tops are a bit flat so it will only work in certain lights that have it's positive receiving end sticking out a bit to contact the CR-V3 derived AA's positive terminal. This is true with Fenix lights.

SAFETY WARNING:

Be careful when taking things apart. Always do in a well ventilated area away from combustible materials AND most importantly - AWAY from your loved ones/family members/kids.

I always wear safety goggles and gloves when taking batteries apart.

 

[Benson]

I have taken apart primary CR-CV3 batteries. There are 2 AA sized 3v batteries inside. Same chemistry as a CR123, just different size.

The AA sized 3v lithium primary batteries are perfect for a Fenix L1D. Lights up like a L2D/P2D.

Question: which brand were constructed of 2p 3V cells? I disassembled an energizer the other day and found 2s construction, 1.7V/cell; presumably L91s.

The positive tops are a bit flat so it will only work in certain lights that have it's positive receiving end sticking out a bit to contact the CR-V3 derived AA's positive terminal. This is true with Fenix lights.

And mine were button tops (with one spot-welded tab connecting them) -- again, looked like L91s. Not that L91s are a bad deal either, if you catch the CRV3s cheap enough, and I'll certainly use them.

I'd guess Energizer is L91s, and most other brands would use their own 3V cells instead of buying from Energizer, but I'd like to know your experiences of specific brands...

 

[Norm]

Lear to search, check my sig.
splitting" a CR-V3
Cheers Norm

 

[qwertyydude]

Depends on construction, some of them use two nimh in series therefore useless as you could just get two cells. Now if it's lithium ion, many of those don't use full length cells. Two of the lithium cells in parallel to increase capacity and usually some sort of voltage regulation circuit so the output is max 3v with overcurrent protection and undervoltage cutoff.

 

[ltiu]

Question: which brand were constructed of 2p 3V cells? I disassembled an energizer the other day and found 2s construction, 1.7V/cell; presumably L91s.

Ah, yes, missed a small detail. My CR-V3 primaries were Duracells.