Which 3.0v (low voltage) RCR123's for my riverrock headlight?

[bugsy714]

Hello to all,

I'm looking for a lower voltage rcr for my river rock headlight (6v/2 cells). It does not have overdischarge protection and I don't think it can handle 3.6v cells without frying.

I was thinking LiFe might be a good match but they are unprotected cells, are there any low voltage protected cells?

 

[FLT MEDIC]

Been using Tenergy 3.0v 900maH protected RCR123As for my 6v Gladius the past 2 years. It comes off the charger at 3.8v but it settles down to 3.2v after about 10 minutes. I always wait at least 10 minutes or verify with my digital multimeter before using it in my Gladius to be sure.

Using 3.6v RCR123As fried other people's Gladius since it comes off the charger at 4.2v and settles at 3.8v after 10 minutes or so.

 

[ccd rider]

It does not have overdischarge protection and I don't think it can handle 3.6v cells without frying.

It does have a gradual dimming though at around 2.5 hours or so. I look to replace batteries before it goes much beyond that.

I was thinking LiFe might be a good match but they are unprotected cells, are there any low voltage protected cells?

The LIFePO4 aren't protected, but they have a safer chemistry that is not supposed to vent or explode. My concern is more the mah ratings and how much time I can from one charge. If I can't get at least an hour (the average time of my commuting in the dark) then I have to stick with the primaries or a protected rcr.

I am also interested in any other feedback on using rechargeables with this headlamp. The LIFePO4 (and some of the protected rcr's) also are supposed to be thicker and might pose a fit problem. I know the River Rock K2 85 lumen headlamp had a problem with nimh rechargeables and fit.

 

[mdocod]

might try these:
http://store.peakbattery.com/lfp123a-32-volt-600-mahr-lithium.html

probably the highest capacity LiFePO4 cell out there, but I still wouldn't expect to get 600mAH from them.

-Eric