7.2 Volt Battery In TM?!?

WannaBeNoob · August 8th, 2007, 21:09

Hey, I have a 7.2 Volt 2200Mah battery and i was wundering, I have a speed charger for it and everything. Would this work in a game if im not worried about ROF at all.

~The Noob

Ronan · August 8th, 2007, 21:23

Talking in big red letters makes it ideal to make your point.

On a more serious note. I think that the Mah is what changes your RoF. But don't quote me on that.

WannaBeNoob · August 8th, 2007, 21:24

Mah is bassically 1 mah = 1 shot volts are the ROF

surebet · August 8th, 2007, 21:49

ILLusion · August 8th, 2007, 22:00

It would work fine, given the ROF issue that you're already aware of. But also be aware that the lower voltage will cause the motor to draw more current to turn over the spring.

As an example (these are not actual numbers, this is just for example): if an 8.4v 2200mAh battery required 1mAh to turn over the spring, a 7.2v battery would require 2mAh. On the other end of the spectrum, a 9.6v battery would require 0.75mAh. I recall reading somewhere the draw rate is on a curve, not linear - the motors most efficient voltage is around 8.4v or 9.6v depending on the capacity of the battery pack. The higher voltage push allows the motor to operate without having to pull as much current. At the same time, too much voltage can exceed the motors electrical limitations. Someone more skilled with motors can probably shed more light on that particular issue.

WannaBeNoob · August 8th, 2007, 22:20

Thank you alot. That helps, so I should be able to fire off "around" 1000 or so BB's? thats ok because I wont be gaming for a while, I'm new and i'll just be target practicing in my backyard. (After consulting neighbours)

surebet · August 8th, 2007, 22:33

If you live in suburbia, it's a really bad idea to snap shots off in your backyard. Setup a good BB trap in your basement for garanteed privacy, so long as you use curtains.

WannaBeNoob · August 8th, 2007, 23:04

Small town, no more then 4000 people. know all of my neighbours within a 2 block radius.

surebet · August 8th, 2007, 23:27

Still, I'd setup a basement range, you never know.

WannaBeNoob · August 8th, 2007, 23:30

won't be ordering it for a few months. but yea, I'm moving by then so. Currently, no basement then, hopfully it will be "country" land with like 1 neighbour.

so it should be good by then

pizzainthemorning · August 9th, 2007, 00:02

Just be careful when/if you upgrade your spring. I could still crank back a PDI 170 with a semi-decent ROF on a 7.2V, but it would jam up occassionally if I stopped the cylce when the spring was 99% cocked.

WannaBeNoob · August 9th, 2007, 00:12

You have used 7.2 on a TM?

arman · August 9th, 2007, 06:07

thread jack... my buddy built me a 600 mah 8.4 volt battery. here's the weird thing... i can shoot at least 1000 bbs through it befor i even think about charging it. why???

LUTNIT · August 9th, 2007, 09:36

Quote:

Originally Posted by WannaBeNoob

You have used 7.2 on a TM?

The 7.2V 4200mAh pack I used to have gave the same ROF as an 8.4V 2400mAh pack in any of my guns including my 390fps upgraded G36. What I generally found is that 7.2V 4200mAh = 8.4V 2400mAh = 9.6V 1100mAh for ROF purposes.

Quote:

Originally Posted by arman

thread jack... my buddy built me a 600 mah 8.4 volt battery. here's the weird thing... i can shoot at least 1000 bbs through it befor i even think about charging it. why???

he used good cells...

ILLusion · August 9th, 2007, 11:16

Quote:

Originally Posted by arman

thread jack... my buddy built me a 600 mah 8.4 volt battery. here's the weird thing... i can shoot at least 1000 bbs through it befor i even think about charging it. why???

Why not? I can do that with my minis too.

When people use 1 shot per 1mAh, that's just a very very very rough baseline, and is not the rule.

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August 8th, 2007, 21:09	#1
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	7.2 Volt Battery In TM?!? Hey, I have a 7.2 Volt 2200Mah battery and i was wundering, I have a speed charger for it and everything. Would this work in a game if im not worried about ROF at all. ~The Noob __________________ -loved by all-

August 8th, 2007, 21:24	#3
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	Mah is bassically 1 mah = 1 shot volts are the ROF __________________ -loved by all- Last edited by WannaBeNoob; August 8th, 2007 at 21:28..

August 8th, 2007, 21:49	#4
surebet Vicious MSPaint Wizard Trader rating Join Date: Aug 2004 Location: Longueuil, Quebec	__________________ Annoyingly good with numbers Stop American Censorship

August 8th, 2007, 22:00	#5
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	It would work fine, given the ROF issue that you're already aware of. But also be aware that the lower voltage will cause the motor to draw more current to turn over the spring. As an example (these are not actual numbers, this is just for example): if an 8.4v 2200mAh battery required 1mAh to turn over the spring, a 7.2v battery would require 2mAh. On the other end of the spectrum, a 9.6v battery would require 0.75mAh. I recall reading somewhere the draw rate is on a curve, not linear - the motors most efficient voltage is around 8.4v or 9.6v depending on the capacity of the battery pack. The higher voltage push allows the motor to operate without having to pull as much current. At the same time, too much voltage can exceed the motors electrical limitations. Someone more skilled with motors can probably shed more light on that particular issue. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

August 8th, 2007, 22:20	#6
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	Thank you alot. That helps, so I should be able to fire off "around" 1000 or so BB's? thats ok because I wont be gaming for a while, I'm new and i'll just be target practicing in my backyard. (After consulting neighbours) __________________ -loved by all-

August 8th, 2007, 22:33	#7
surebet Vicious MSPaint Wizard Trader rating Join Date: Aug 2004 Location: Longueuil, Quebec	If you live in suburbia, it's a really bad idea to snap shots off in your backyard. Setup a good BB trap in your basement for garanteed privacy, so long as you use curtains. __________________ Annoyingly good with numbers Stop American Censorship

August 8th, 2007, 23:04	#8
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	Small town, no more then 4000 people. know all of my neighbours within a 2 block radius. __________________ -loved by all-

August 8th, 2007, 23:27	#9
surebet Vicious MSPaint Wizard Trader rating Join Date: Aug 2004 Location: Longueuil, Quebec	Still, I'd setup a basement range, you never know. __________________ Annoyingly good with numbers Stop American Censorship

August 8th, 2007, 23:30	#10
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	won't be ordering it for a few months. but yea, I'm moving by then so. Currently, no basement then, hopfully it will be "country" land with like 1 neighbour. so it should be good by then __________________ -loved by all-

August 9th, 2007, 00:02	#11
pizzainthemorning Trader rating Join Date: Jan 2003 Location: Penetang/Guelph	Just be careful when/if you upgrade your spring. I could still crank back a PDI 170 with a semi-decent ROF on a 7.2V, but it would jam up occassionally if I stopped the cylce when the spring was 99% cocked. __________________ "To invent, you need a good imagination and a pile of junk." - Edison

August 9th, 2007, 00:12	#12
WannaBeNoob Trader rating Join Date: Jul 2007 Location: Vancover Isle	You have used 7.2 on a TM? __________________ -loved by all-

August 9th, 2007, 06:07	#13
arman Trader rating Join Date: Nov 2006 Location: Windsor, Ont.	thread jack... my buddy built me a 600 mah 8.4 volt battery. here's the weird thing... i can shoot at least 1000 bbs through it befor i even think about charging it. why??? __________________ playing with my kid!

7.2 Volt Battery In TM?!?

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