low resistance atys on a DSE 905

[cyclist13]

I just recieved my new DSE 905 V4 yesterday along with some LR 510 attys. This combo works great for a while but seems to drain the batts quicker than they should. After an hour or so of normal use the auto cut off will kick in after only a couple of secs of inhaling. If i switch back to a 901 atty my PV works normal again for quite some time. Just wondering if anyone else has tried this combo and what your results were. Thanks for the help.

 

[kackourey]

I believe that makes sense but I could be wrong the low resistance would increase the battery usage possibly triggering the cutoff. Thats where manual batteries come in. I could be wrong on this as I dont know how about ohms and current and voltage and w/e else you would need to know to figure it out

 

[garyd]

The LR attys will drain batteries faster, I've used one on my 905. You should get more than an hour though. The batteries that came with my 905 were ok but don't last as long as Trustfire batteries I purchased. I would get a good 5-6 hours with the Trustfires and the LR atty.
Here's a good place to get the batteries, he is out right now but you can't beat his prices and free shipping.
http://hightechdealz.com/index.php?main_page=index&cPath=3&zenid=9ojolt53oufs1l8j7i2tjsm2e2

 

[BuzzKill]

How about a little math ?
a LR atty say 1.5 ohms Vs a regular atty say 3.0 ohms , the LR will drain the battery 2x as fast
Ohms law ( YES it is a LAW ! )
1.5 ohms @ 3.7 volts = 2.46 amps of current draw and 9.1 watts of power ( power is the current x the voltage )

for a 3 ohm atty it is 1.23 A @ 4.56 watts

so half power half current etc.

Hope this helps ?