Rechargable cr123 for Duracell daylite?

[Breathing Borla]

I am going to buy a duracell daylite flashlight. It comes with two duracell cr-123 batteries. However, I would like to set this light up to run off of rechargeable batteries.

Can someone recommend the correct rechargeable batteries for this light.

I found these, but I'm not sure which one to get.

Is there one that will work on this page?

http://www.batteryjunction.com/recrbachrc.html

Thanks for any help you can give me

 

[Breathing Borla]

nobody has any ideas on this?

 

[Oddjob]

I don't know what the maximun safe voltage for the Duracell light is. If the maximum voltage is 3 volts then I think you could use LiFePO4. The capacity is much less than primaries (non rechargeables) but if you use the light frequently then they save you money in the long run. Some people prefer primaries and $2.00 a cell online isn't prohibitive.
AW cells are popular around here. Here is his sales thread in Marketplace. Li-ion rechargeables have a nominal voltage of 3.7 volts but off the charger they will be 4.2 volts which may be too much for the light.

 

[tabetha]

As said need to watch the voltage, though you can get 3 volt rechargies in 123 size.
If the light you have is an incan, normal bulb type light, it should be fine, as excess current/voltage wouldn't be a problem, not this much anyway.
Just get on a site and get a deal with two batteries and a simple charger, that's what I started with, saved me loads, over the years.
tabetha

 

[Breathing Borla]

I guess after further reading, it's a 4w Led (unknown kind) with two 3v cr-123 so 6v total

I emailed battery junction and they sent this back.

"

As we do not sell that flashlight nor are we familiar with it we cannot guarantee compatability but this kit would be your best bet as it offers the widest compatability for products not originally designed to use rechargeables: http://www.batteryjunction.com/4parc390reli.html"


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[Oddjob]

I guess after further reading, it's a 4w Led (unknown kind) with two 3v cr-123 so 6v total

I emailed battery junction and they sent this back.

"

As we do not sell that flashlight nor are we familiar with it we cannot guarantee compatability but this kit would be your best bet as it offers the widest compatability for products not originally designed to use rechargeables: http://www.batteryjunction.com/4parc390reli.html"


​

Those cells should work but they will not likely give you the stated 900 mAh. Be sure to research the safe use of lithium ion rechargeables to avoid any accidents.

 

[Breathing Borla]

well, nothing is ever easy, :naughty:

Battery junction email back some other ideas. One being the Itp-e50.

it's within 10 bucks or so and will work with those batteries and charger for sure. Now I need to go look up that light, so far it's looks mighty impressive

 

[HitecDrftr]

This post is from December:

Just an update on the use of RCR 123's. They seem to work fine in the 2 x 123 version of the light.

I made some tailcap current measurements after open-circuit voltage readings on rechargeables:

RCR-123 8.15 V * 0.40 A = 3.26 W

Here's a sample consumption using primaries:

CR-123 6.10 V * 0.52 A = 3.17 W

No extra heat, no tint shift from the emitter with RCR's when running for a little while.

I grabbed some primary batteries that were near end of life (5.57V open circuit) Started at 0.15 A and quickly fell to 0.05 A. Gave 10-20 estimated lumens constantly from there, like a moon mode when primaries are nearly expired.

From my experiment, the regulation seems to work fine for 6.0V-8.4V. Somewhere below 6V the light drops out of regulation. Seems to be a good match for rechargeables!

From this thread, post #84: http://www.candlepowerforums.com/vb/showthread.php?t=205564&page=3

 

[Breathing Borla]

cool thanks that's what I was looking for:thumbsup: