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Survival and Preparations Long and short term survival and 'prepping'.

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  #1  
Old 12-22-2012, 10:11 PM
sleung sleung is offline
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Default Rechargeable Batteries Question

I am looking into replacing my 2-CR123 flashlight, SteriPEN, etc, to a 18650 rechargeable battery but there is so many to choice from, what I meant is there is so many different mAh rating, how do I know which to choice? is it the higher the better? more/longer power??
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Old 12-23-2012, 8:36 AM
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Short answer - yes more is better. Amps is the measurement for current, mili being a thousandth and rated per hour. so the more mAh you get in a given battery size the longer the load will run, depending also on how smart the load is.

I've used candle power forums for researching lights and there is good battery info as well.
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Last edited by wheels; 12-23-2012 at 8:39 AM.. Reason: added cpf
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  #3  
Old 12-23-2012, 8:49 AM
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Darklyte27 Darklyte27 is offline
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http://www.batteryjunction.com/recrbachrc.html

this is what I use for my flashlights

http://www.batteryjunction.com/4parc390reli.html
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Old 12-23-2012, 6:36 PM
sleung sleung is offline
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Thanks for the info. I am looking at the AW batteries, anyone has any insight on them? Good? Bad? So-So?
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Old 12-23-2012, 8:43 PM
problemchild problemchild is offline
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Quote:
Originally Posted by sleung View Post
I am looking into replacing my 2-CR123 flashlight, SteriPEN, etc, to a 18650 rechargeable battery but there is so many to choice from, what I meant is there is so many different mAh rating, how do I know which to choice? is it the higher the better? more/longer power??
You can run an 18650 and be under-powered at 4v for a 6v appliance or run two 3V NOT 3.6V 123 rechargeables and a special 3v recharger not 3.6v. The 3.6v batteries actually charge to 4.2 x 2 = 8.4v for a 6v appliance.
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Old 12-24-2012, 10:16 AM
sleung sleung is offline
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Quote:
Originally Posted by problemchild View Post
You can run an 18650 and be under-powered at 4v for a 6v appliance or run two 3V NOT 3.6V 123 rechargeables and a special 3v recharger not 3.6v. The 3.6v batteries actually charge to 4.2 x 2 = 8.4v for a 6v appliance.
This is what I am looking at,
http://www.supertmanufacturing.com/id75.html
All of them are rated 3.7v, so I can't use them then? Is there any rechargeable 123 rated 3.0v? I read one of PC's old post regarding the Ultrafire charger, is it good for charging 3.0v if I can find any? Thanks.
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Old 01-03-2013, 8:01 PM
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in the long term dont put your faith in batteries get some beeswax candles oil lamps etc and some white gas lamps white gas has a pretty long shelf life
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Old 01-03-2013, 8:01 PM
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in the long term dont put your faith in batteries get some beeswax candles oil lamps etc and some white gas lamps white gas has a pretty long shelf life
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Old 01-03-2013, 8:01 PM
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in the long term dont put your faith in batteries get some beeswax candles oil lamps etc and some white gas lamps white gas has a pretty long shelf life
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  #10  
Old 01-07-2013, 11:46 PM
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Falstaff Falstaff is offline
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I love the 18650 form factor, I get them from Dealextreme.com (direct from China free shipping no tax but it takes them awhile to ship through customs) I have had great luck with the "Ultrafire" protected 2500mah 18650 cells and the "trustfire" 2500mah 18650. There are other 18650's there with higher amp hour ratings but most reviewers have reported that the 3000mah+ claims were very optomistic...

You can get two 18650's for 6-8 bucks there. I buy only the protected cells as it's easy to permanently damage a lithium battery without voltage management
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Old 01-08-2013, 9:54 AM
mej16489 mej16489 is offline
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Quote:
Originally Posted by sleung View Post
This is what I am looking at,
http://www.supertmanufacturing.com/id75.html
All of them are rated 3.7v, so I can't use them then? Is there any rechargeable 123 rated 3.0v? I read one of PC's old post regarding the Ultrafire charger, is it good for charging 3.0v if I can find any? Thanks.
http://www.batteryjunction.com/rc390reliba.html
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