RCCrawler Forums

S-Dog · 01-02-2007, 08:01 AM

Can you split the battery connection to connect the battery to both sides of an EVX instead of using 2 batteries. I am trying to get to 14.4v without using 2 batteries. In my mind it seems like it should work. Any help is appreciated.

Thanks,

Scott

sicj · 01-02-2007, 08:17 AM

Trying to simply split 7.2v battey with two leads is not 14.4 volts. Your giving 7.2 volts through each lead.

Can't split a circuit into parallel and get more volts magically.

You will need two packs or make a 12 cell pack and put two leads on it

S-Dog · 01-02-2007, 08:36 AM

I understand that... however on an EVX you are plugging 2-7.2v batteries into it... I am talkin about putting 7.2v into both of those same connections, just using 1 battery to do so.

cvecmaxx · 01-02-2007, 08:47 AM

look around the site a bit

http://www.rccrawler.com/evx.htm

sicj · 01-02-2007, 08:48 AM

basically you really want to "delete" one of the EVX's leads to make it work right? Just make a connector that connects the positive and negative wires on one lead and simply use the other lead for 7.2v operation.

If your truly trying to run on 14.4 volts you need either two seperate 7.2v batts or one 12 cell 14.4v batt with 2 leads.

Kamikaze · 01-02-2007, 08:49 AM

I don't have an evx but I have seen the mod that makes using 1 battery and after seeing that it seemes to me that all the 2 leads to the evx do is hook up the two packs in series. So now think of what will happen if you plug in your pack into both leads, you will be shorting out the pack, cause when you use two packs they hook up +-+- to the evx, now you will be trying to run the -+ conection back to the + of you pack instead of to the + of a sepperate pack. Basicly you will do the same thing as if you just cut of the conecter of your battery and stuck them together........spark......sizzle........burnt up pack. IMO

Kamikaze · 01-02-2007, 08:56 AM

Quote:

Originally Posted by sicj

If your truly trying to run on 14.4 volts you need either two seperate 7.2v batts or one 12 cell 14.4v batt with 2 leads.

That last one will short, if you use a 14.4v batt then you need to do the mod to eliminate the extra lead.

S-Dog · 01-02-2007, 08:57 AM

Quote:

Originally Posted by Kamikaze

I don't have an evx but I have seen the mod that makes using 1 battery and after seeing that it seemes to me that all the 2 leads to the evx do is hook up the two packs in series. So now think of what will happen if you plug in your pack into both leads, you will be shorting out the pack, cause when you use two packs they hook up +-+- to the evx, now you will be trying to run the -+ conection back to the + of you pack instead of to the + of a sepperate pack. Basicly you will do the same thing as if you just cut of the conecter of your battery and stuck them together........spark......sizzle........burnt up pack. IMO

Thank you Kamikazee... you answered my question and explained it wonderfully...

floogldood · 01-03-2007, 09:53 AM

A single battery can be used with the evx on the plug that powers it up (and powers the servos). The other side (dummy plug) has to be jumpered + to -. The problem with using more than 10 cells is the bec circuit may not handle that. I've been using a max of 8 cells on that side.

01-02-2007, 08:01 AM	#1
S-Dog Rock Crawler Join Date: May 2006 Location: Burrillville, RI Posts: 778	Using 1 battery to get 14.4 volts Can you split the battery connection to connect the battery to both sides of an EVX instead of using 2 batteries. I am trying to get to 14.4v without using 2 batteries. In my mind it seems like it should work. Any help is appreciated. Thanks, Scott

01-02-2007, 08:17 AM	#2
sicj Quarry Creeper Join Date: Dec 2004 Posts: 427	Trying to simply split 7.2v battey with two leads is not 14.4 volts. Your giving 7.2 volts through each lead. Can't split a circuit into parallel and get more volts magically. You will need two packs or make a 12 cell pack and put two leads on it

01-02-2007, 08:36 AM	#3
S-Dog Rock Crawler Join Date: May 2006 Location: Burrillville, RI Posts: 778	I understand that... however on an EVX you are plugging 2-7.2v batteries into it... I am talkin about putting 7.2v into both of those same connections, just using 1 battery to do so.

01-02-2007, 08:47 AM	#4
cvecmaxx Pebble Pounder Join Date: Sep 2005 Location: minocqua Posts: 165	look around the site a bit http://www.rccrawler.com/evx.htm

01-02-2007, 08:48 AM	#5
sicj Quarry Creeper Join Date: Dec 2004 Posts: 427	basically you really want to "delete" one of the EVX's leads to make it work right? Just make a connector that connects the positive and negative wires on one lead and simply use the other lead for 7.2v operation. If your truly trying to run on 14.4 volts you need either two seperate 7.2v batts or one 12 cell 14.4v batt with 2 leads.

01-02-2007, 08:49 AM	#6
Kamikaze I wanna be Dave Join Date: Oct 2005 Location: Columbia TN Posts: 6,154	I don't have an evx but I have seen the mod that makes using 1 battery and after seeing that it seemes to me that all the 2 leads to the evx do is hook up the two packs in series. So now think of what will happen if you plug in your pack into both leads, you will be shorting out the pack, cause when you use two packs they hook up +-+- to the evx, now you will be trying to run the -+ conection back to the + of you pack instead of to the + of a sepperate pack. Basicly you will do the same thing as if you just cut of the conecter of your battery and stuck them together........spark......sizzle........burnt up pack. IMO

01-03-2007, 09:53 AM	#9
floogldood Quarry Creeper Join Date: Nov 2005 Location: Planet Earth Posts: 350	A single battery can be used with the evx on the plug that powers it up (and powers the servos). The other side (dummy plug) has to be jumpered + to -. The problem with using more than 10 cells is the bec circuit may not handle that. I've been using a max of 8 cells on that side.

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