Battery / relocation questions - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jing · 07-09-2009, 07:47 PM

My new 240 has had the stock battery relocated to the back, battery tray and all with NO box. From my understanding, this is very unsafe as a conventional battery will release hydrogen gasses inside the driving compartment (since it's in the trunk) unless it is in a sealed box with a breather tube.

I visited a local shop today that specializes in battery's and was going to buy a marine box and run a tube from that through the outside of my car. However, the salesperson there advised me that this was a bad idea, and gave me 2 other options. The 1st option was to buy a conventional battery ($100 + tax) that was in some special case with 2-built in holes in the top that are designed for breather tubes. The 2nd option was to buy a special "AGM" battery that would cost $250. AGM's as I was told, do not emit any gasses as they are made up of one solid mass.

Is it safe to run a marine box and not have gasses releasing everywhere?

or..

Do I have to buy the battery mentioned in the 1st option?

s13 @ fullboost · 07-09-2009, 08:26 PM

I would go with Numba one

gijoe69 · 07-09-2009, 08:44 PM

Run a 0/1GA from Engine Bay to a Fuse to the trunk with a secure battery box so ACID don't eat shiet up in your trunk haha

jivetoast · 07-09-2009, 08:44 PM

well here is what i did, buy a really small battery from tirerack.com. we were originally going to do the marine box, but it was too much of a pain to mount the box in the back. the marine box WILL seal and shouldnt emit gasses but there will be a build up of gas in the box.

JAY_AHR · 07-10-2009, 01:58 AM

i got mine in the trunk, a lil bigger than the stock one so it gives it enough juice to run the long of a wire and start the car.. and i also went to autozone and grab a battery cover and drill a hole right on the side just for the hydrogen gasses or if in any case the battery over flow with acid for some reason.

then plug that hole with a hose and ran it just inside the passenger side panel and out thru the vent underneath the quarterpanel.

***S14DB*** · 07-10-2009, 02:13 AM

Get a sealed battery box and use the hose to vent out the car. Sales guy was trying to sell you crap. You still need a box for most tech inspections. May need a external cut off too.

gotspins13 · 07-10-2009, 04:35 AM

orrr
you can just get a dry cell

07-09-2009, 07:47 PM	#1
jing Zilvia Member Join Date: Dec 2007 Location: Vancouver, BC Age: 36 Posts: 291 Trader Rating: (4) Feedback Score: 4 reviews	Battery / relocation questions My new 240 has had the stock battery relocated to the back, battery tray and all with NO box. From my understanding, this is very unsafe as a conventional battery will release hydrogen gasses inside the driving compartment (since it's in the trunk) unless it is in a sealed box with a breather tube. I visited a local shop today that specializes in battery's and was going to buy a marine box and run a tube from that through the outside of my car. However, the salesperson there advised me that this was a bad idea, and gave me 2 other options. The 1st option was to buy a conventional battery ($100 + tax) that was in some special case with 2-built in holes in the top that are designed for breather tubes. The 2nd option was to buy a special "AGM" battery that would cost $250. AGM's as I was told, do not emit any gasses as they are made up of one solid mass. Is it safe to run a marine box and not have gasses releasing everywhere? or.. Do I have to buy the battery mentioned in the 1st option?

07-09-2009, 08:26 PM	#2
s13 @ fullboost Post Whore! Join Date: Dec 2007 Location: St.Petersburg,FL Posts: 2,550 Trader Rating: (15) Feedback Score: 15 reviews	I would go with Numba one __________________

07-10-2009, 02:13 AM	#6
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Get a sealed battery box and use the hose to vent out the car. Sales guy was trying to sell you crap. You still need a box for most tech inspections. May need a external cut off too. __________________ Comments should be taken as Opinions not as Statements of Fact

07-10-2009, 04:35 AM	#7
gotspins13 Zilvia Addict Join Date: Nov 2008 Location: NorCAl//Sacramento Posts: 944 Trader Rating: (0) Feedback Score: 0 reviews	orrr you can just get a dry cell __________________ perfectly said! FJ20ET 16 valve - the holy grail of Nissan engines

07-09-2009, 08:44 PM	#3
gijoe69 Zilvia Junkie Join Date: May 2003 Location: San Francisco, CA Age: 40 Posts: 366 Trader Rating: (1) Feedback Score: 1 reviews	Run a 0/1GA from Engine Bay to a Fuse to the trunk with a secure battery box so ACID don't eat shiet up in your trunk haha

07-09-2009, 08:44 PM	#4
jivetoast Zilvia Member Join Date: Jul 2008 Location: Brick Nj/ lima ohio Age: 34 Posts: 207 Trader Rating: (5) Feedback Score: 5 reviews	well here is what i did, buy a really small battery from tirerack.com. we were originally going to do the marine box, but it was too much of a pain to mount the box in the back. the marine box WILL seal and shouldnt emit gasses but there will be a build up of gas in the box.

07-10-2009, 01:58 AM	#5
JAY_AHR BANNED Join Date: Jul 2009 Location: O.C Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	i got mine in the trunk, a lil bigger than the stock one so it gives it enough juice to run the long of a wire and start the car.. and i also went to autozone and grab a battery cover and drill a hole right on the side just for the hydrogen gasses or if in any case the battery over flow with acid for some reason. then plug that hole with a hose and ran it just inside the passenger side panel and out thru the vent underneath the quarterpanel.