Battery Mixing?

Joe DeMarzo · 09-16-2012, 08:58 AM

This might be one of the dumber questions but can you mix and match a Lithum 16 volt battery with a "normall" 16 volt battery? I do know there are seperate and different chargers but would they be compatable to run a stocker?

Lee Valentine · 09-16-2012, 10:13 AM

Joe, check with Ryck Campbell I believe front and rear batteries have to be the same in stock. Size weight etc, Lee.

Bill Belden · 09-16-2012, 11:34 AM

Lee is right, they have to be the same

Signman · 09-17-2012, 10:19 AM

Must be automotive. Same type and weight.

Common sense tells me (if that counts) a heavier battery in the front may pass.

Rusty Davenport · 09-17-2012, 04:46 PM

Not to mention any names......some are passing tech with a standard size battrey in the rear and a size 51 honda battery in the front-----at national events.

Jeff Lee · 09-17-2012, 05:02 PM

Maybe the original question was (to rephrase) "can you take a wet or dry cell battery of equal size and weight to a lithium battery and run both in the car together?" Even if that was not the intent of the original post, I'm curious. This would be more of an automotive electrical question and not an NHRA rulebook question.

Joe DeMarzo · 09-17-2012, 05:07 PM

Jeff, that is the intent of my original question, would they be compatable?

Signman · 09-17-2012, 05:29 PM

If batteries were not connected in parallel there should be no issue at all

Run one with alternator and ignition, the other to power accessories: water pump and fan.
2 separate systems will be fine. One will be charged by alternator other will need to be charged manually with correct battery charger.

He Joe why you making it complicated?
Just buy 2 of the $1500 dollar lithium batteries and all will be good!

Owen S Quirion · 09-17-2012, 05:32 PM

Joe, I am guessing that the Lithium battery is not an Automotive battery right? Here is the problem with Lithium batteries as Automotive batteries, there is a property known as "C" rate when talking about the ability of any battery to either accept or receive a charge. Lead acid batteries have a pretty quick discharge rate and they also can be charged pretty quickly as a result. On the other side of the equation, the Lithium Ion batteries deliver their power over a longer time period and also take longer to charge. I think your problem would most likely be with the Lead acid battery attempting to dump it's charge into the Lithium Ion battery at a rate too fast for it's acceptance causing perhaps a Nova Flambe'. Translation: Orange flames instead of green ones.

Jeff Lee · 09-17-2012, 05:39 PM

Joe,
We think alike then. At least on this. I rephrased your question and now I too want to know if these two types of batteries can be mixed in any way or is that just a bad idea?

09-16-2012, 08:58 AM	#1
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Battery Mixing? This might be one of the dumber questions but can you mix and match a Lithum 16 volt battery with a "normall" 16 volt battery? I do know there are seperate and different chargers but would they be compatable to run a stocker? __________________ Joe DeMarzo 1317 STK

09-16-2012, 10:13 AM	#2
Lee Valentine Senior Member Join Date: May 2004 Location: Brookfield, CT Posts: 708 Likes: 13 Liked 319 Times in 68 Posts	Re: Battery Mixing? Joe, check with Ryck Campbell I believe front and rear batteries have to be the same in stock. Size weight etc, Lee. __________________ Lee Valentine 1661 STK

09-16-2012, 11:34 AM	#3
Bill Belden Member Join Date: Jun 2002 Location: York, PA Posts: 241 Likes: 0 Liked 1 Time in 1 Post	Re: Battery Mixing? Lee is right, they have to be the same __________________ Bill Belden Retired Stock Eliminator [emailSTK1100@comcast.net[/email]

09-17-2012, 10:19 AM	#4
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: Battery Mixing? Must be automotive. Same type and weight. Common sense tells me (if that counts) a heavier battery in the front may pass. __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"

09-17-2012, 04:46 PM	#5
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 506 Likes: 4 Liked 101 Times in 27 Posts	Re: Battery Mixing? Not to mention any names......some are passing tech with a standard size battrey in the rear and a size 51 honda battery in the front-----at national events. __________________ NHRA AND IHRA STOCK ELIMINATOR 2772

09-17-2012, 05:02 PM	#6
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Battery Mixing? Maybe the original question was (to rephrase) "can you take a wet or dry cell battery of equal size and weight to a lithium battery and run both in the car together?" Even if that was not the intent of the original post, I'm curious. This would be more of an automotive electrical question and not an NHRA rulebook question. __________________ Jeff Lee 7494 D/S '70 AMX

09-17-2012, 05:07 PM	#7
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Battery Mixing? Jeff, that is the intent of my original question, would they be compatable? __________________ Joe DeMarzo 1317 STK

09-17-2012, 05:29 PM	#8
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: Battery Mixing? If batteries were not connected in parallel there should be no issue at all Run one with alternator and ignition, the other to power accessories: water pump and fan. 2 separate systems will be fine. One will be charged by alternator other will need to be charged manually with correct battery charger. He Joe why you making it complicated? Just buy 2 of the $1500 dollar lithium batteries and all will be good! __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"

09-17-2012, 05:32 PM	#9
Owen S Quirion Junior Member Join Date: May 2005 Location: Captiol District of New York Posts: 71 Likes: 0 Liked 0 Times in 0 Posts	Re: Battery Mixing? Joe, I am guessing that the Lithium battery is not an Automotive battery right? Here is the problem with Lithium batteries as Automotive batteries, there is a property known as "C" rate when talking about the ability of any battery to either accept or receive a charge. Lead acid batteries have a pretty quick discharge rate and they also can be charged pretty quickly as a result. On the other side of the equation, the Lithium Ion batteries deliver their power over a longer time period and also take longer to charge. I think your problem would most likely be with the Lead acid battery attempting to dump it's charge into the Lithium Ion battery at a rate too fast for it's acceptance causing perhaps a Nova Flambe'. Translation: Orange flames instead of green ones. __________________ BF/S 1985 Grand Am 3.0 V6

09-17-2012, 05:39 PM	#10
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Battery Mixing? Joe, We think alike then. At least on this. I rephrased your question and now I too want to know if these two types of batteries can be mixed in any way or is that just a bad idea? __________________ Jeff Lee 7494 D/S '70 AMX