1.4A 445 battery life

• May 4, 2012

• #1

crazyhobo

0

Joined

Aug 18, 2009

Messages

202

Points

28

How long should I expect the batteries to last in my 1.4A 445? They are the blue TrustFire 16340's that say 880 mah. I seem to only be getting 10 minutes out of them.

 

• May 4, 2012

• #2

sinner

0

Joined

Oct 27, 2011

Messages

2,565

Points

83

Please explain your question.. It doesnot make any sense at all..
Battery-life Is directly proportional to Battery Capacity and Inversly proportional to current draw.

Current Draw however depends on what type of driver setup you are using.

 

Last edited: May 4, 2012

• May 4, 2012

• #3

C

cilegray

0

Joined

Jan 14, 2012

Messages

423

Points

0

Buck driver or linear driver ?

If you want a definitive answer, put a DMM to your tailcap and measure amp draw there.

 

• May 4, 2012

• #4

S

Stix62

0

Joined

Dec 29, 2011

Messages

463

Points

0

Forgetting the previous answers (although totally relevant of course), your 10 minute time is to be expected considering the batteries.

Trustfire - 880mAh?

Divide that by 2 and you will be a lot closer to the actual capacity.

 

• May 4, 2012

• #5

crazyhobo

0

Joined

Aug 18, 2009

Messages

202

Points

28

Cool.
:thanks:

 

• May 5, 2012

• #6

Just4FunReally

0

Joined

Mar 11, 2012

Messages

215

Points

0

Well, while on the subject of battery life, I'm going to be making a setup pretty soon using two AW IMR 16340's rated for 550mAh. They will feed a mohgasm 16mm round linear driver to the tune of 1.62A. Any idea what battery life will be?

 

• May 5, 2012

• #7

C

cilegray

0

Joined

Jan 14, 2012

Messages

423

Points

0

Afaik a linear should pull roughly 1.62A @ whatever voltage, and drop it down to whatever the LED needs, burning off excess. 1.62A drain on 550mAh batteries would get you 20 minutes... more or less.

 

• May 5, 2012

• #8

Just4FunReally

0

Joined

Mar 11, 2012

Messages

215

Points

0

Thanks. Those IMR's really do sacrifice capacity for current, but 20 mins of use is probably what I'll use in a week. That, and my charger will charge both at once. Makes me a happy camper. :beer:

 

• May 5, 2012

• #9

S

Stix62

0

Joined

Dec 29, 2011

Messages

463

Points

0

Just4FunReally - Depending on if the host, you might be able to use AW IMR 18350 instead of the 16340's. They are rated slightly higher at 700mAh.

 

• May 5, 2012

• #10

Just4FunReally

0

Joined

Mar 11, 2012

Messages

215

Points

0

Stix62 said:

Just4FunReally - Depending on if the host, you might be able to use AW IMR 18350 instead of the 16340's. They are rated slightly higher at 700mAh.

Click to expand...

It's the C6 so it can fit the 18 diameter, but the charger I have is for CR123's. I'm not bothered by the capacity either, I just wanted an estimate. Thanks for the suggestion though, should I ever want a longer batt life I will know what to do.

 

• May 5, 2012

• #11

S

Stix62

0

Joined

Dec 29, 2011

Messages

463

Points

0

Ah well then, if it's for a C6 a better alternative would be to get an extension tube and throw 2 x 18650's in there

 

• May 6, 2012

• #12

Just4FunReally

0

Joined

Mar 11, 2012

Messages

215

Points

0

Stix62 said:

Ah well then, if it's for a C6 a better alternative would be to get an extension tube and throw 2 x 18650's in there

Click to expand...

I dislike the way the extension tube makes the host look like a.... feminine toy... But yes, that would be another option. Gotta love the C6 for its versatility, at the very least. as long as you can fit your driver in that pill...