Taperssection.com
Gear / Technical Help => Remote Power => Topic started by: caymanreview on December 14, 2003, 04:38:42 PM
-
first off, i am buying stuff to build a rc pack for my new mme
i have a rev c mme. and i can run it from 6v to 12v
i think it has a 800mah drain max. so would this differ when say using a 3000mah 9.6v or using a 3000mah 7.2v?
what i am wondering, does it draw the same mah to operate no matter what voltage it is running on?
would there be any reason to buy 9.6v packs over the 7.2v packs?
-
Yes, the higher wattage will yield less power drain. I forget the formula, but I believe it is in the archives. By going to 9.6v's, you will get longer run time at the same mah than using 7.2's. I hope this helps
D
-
definantly helps. there isnt really a price difference or weight difference beetween the 7v and the 9.6v rc packs
i couldnt find a formula anywhere for this deal. i would love to check it out though!
-
fucked it up
-
if this formula is right and i assume schwilly has his shit together, the power drain at 9.6v is 500mah and at 7.2v is 666.67. had to do this little equation to make sure i was still proficient in math as it seems i struggle in every class i take in school
-
fucked it up
-
Nice work, Schwilly.
-
i need more than 4 hrs, i archive for a local band that might jam 3 sets at 1.5-2hrs each
-
but i can get ~6hrs from one 3000mah hr 9.6
that is alot of runtime. i might just buy another 1800mah 9.6 and be set. but il probably just buy one 3000mah 9.6 and be done with it!
thanks schwilly....
-
best we can do is test
yer welcome
good luck
peace
schwill
-
i think you need to reconsider these calculations....according to this thread...http://www.taperssection.com/yabbse/index.php?board=14;action=display;threadid=2460 (http://www.taperssection.com/yabbse/index.php?board=14;action=display;threadid=2460)
the mme's power consumption is 5.5W http://www.apogeedigital.com/products/minime.php?show=features (http://www.apogeedigital.com/products/minime.php?show=features)
I = P/V
5.5W/9.6V = 0.572A = 572mA
( Battery Capacity [mAH] / Current Draw [mA] ) * ( .80 )
3000mA / 572mA = 5.24h * 0.8 = 4.2 hours
personally unless you really really hate lugging SLAs around, i'd go pick up a 12V or even a 6V, definitely cheaper than those battery packs. for example the battery i just built....
12V 7.5Ah will last me ~13 hours and although it's not tiny, neither is the mme. i dunno, batteries are the last thing i like to skimp on, learned my lesson.
-
*tips hat*
you're absolutely right, thanx for clearing this up. I just went and deleted what I posted so no one gets confused.
-
i would rather spend a few extra bucks on 2-3 3000mah rc packs than ever lug around an sla!