DIY Session : Car Battery Relocation

[differ]

Hey guys, as you all know there are the new MF car batts in the market now.

First some info for all ZTH bros before we go on, when you buy MF batts, pick the Expanded Metal types. Batts like Century MF are not Expanded Metal and are from Thailand, hehe. There's a difference but it gets really hard to explain, maybe in my next post when i have the time.

And even better, we should support local made products so buy ABI MF batts, those are made in Malaysia. GP MF Batts are made in Philippines i think, not local. Hehe, not doing advertising, just stating facts.


Anyway, i know a lot of ppl in the car batt industry and they just told me that actually MF batteries have their lifespan shortened in most Japanese cars. The simple reason being the battery is too near the engine, thus the ambient temp gets very very hot. Heat kills MF batts and it shows since MF batts last much longer in continental cars as compared to jap cars.

So me and a buddy have come with an idea to rewire our car batteries to the car-boot instead of having it under the bonnet next to the very hot engine.

The bracket and 'holding' mechanism we have figured wouldn't be so hard to DIY and customise it. But for the wiring, we will go to a good wireman to do it.

The thing is, i'd like to share this idea and get any opinions (positive+negative) about this project from all you ZTH bros out there.

Esp from mr.johnsonlam the DIY SiFu... :lol:

Seriously, any feedback (positive or negative) is appreciated! Thanks!

 

[Boink Boink]

Sorry ah...

but can tell me what is MF...??

The only thing thats comes to mind is Mother F&&^#$............... and I dont think that is quite what you meant....

:o :o :o

Boink Boink

 

[K-Kid]

Originally posted by Boink Boink@Dec 1 2003, 09:21 PM
Sorry ah...

but can tell me what is MF...??

The only thing thats comes to mind is Mother F&&^#$............... and I dont think that is quite what you meant....

:o :o :o

Boink Boink

MF = maintenance free

 

[antonio]

:blink: :blink: :blink: :blink:

hahahahahaha

:lol: :lol: :lol: :lol: :lol:

MF=Maintainence Free...

akekekke :lol:

 

[differ]

yeah, MF is Maintenance Free. this means you won't need to add battery water or acid, just let it run. just pay attention to the Magic Eye indicator (on ABI batteries at least) and if it's green, no problem.

but again the problem is with the proximity of the battery to the engine in japanese cars, lowers down the MF battery's lifespan.

 

[antonio]

:D :lol: :P

 

[johnsonlam]

Originally posted by differ@Dec 1 2003, 08:44 PM
Hey guys, as you all know there are the new MF car batts in the market now.

First some info for all ZTH bros before we go on, when you buy MF batts, pick the Expanded Metal types. Batts like Century MF are not Expanded Metal and are from Thailand, hehe. There's a difference but it gets really hard to explain, maybe in my next post when i have the time.

And even better, we should support local made products so buy ABI MF batts, those are made in Malaysia. GP MF Batts are made in Philippines i think, not local. Hehe, not doing advertising, just stating facts.


Anyway, i know a lot of ppl in the car batt industry and they just told me that actually MF batteries have their lifespan shortened in most Japanese cars. The simple reason being the battery is too near the engine, thus the ambient temp gets very very hot. Heat kills MF batts and it shows since MF batts last much longer in continental cars as compared to jap cars.

So me and a buddy have come with an idea to rewire our car batteries to the car-boot instead of having it under the bonnet next to the very hot engine.

The bracket and 'holding' mechanism we have figured wouldn't be so hard to DIY and customise it. But for the wiring, we will go to a good wireman to do it.

The thing is, i'd like to share this idea and get any opinions (positive+negative) about this project from all you ZTH bros out there.

Esp from mr.johnsonlam the DIY SiFu... :lol:

Seriously, any feedback (positive or negative) is appreciated! Thanks!

Hi differ .. You rock

This is a really good DIY and you will be really satisfied with the result. Especially when you open up your bonet and see more space there and people see... "Eh, where's the battery" :lol: :D

Anyway.. Back to the DIY part. Yes it is possible to do that. But must be very very careful to check the wiring from time to time to see if it is hot. (Afraid, will melt / burn)

Things needed :
- Very very thick power cables (4 gauge minimum) RED Coloured
- Very very thick power cables (4 gauge minimum) BLUE or Any DARK Colour
- Battery Clips
- Good Quality wire insulator
- Battery MOunting Pieces

Steps :
- Remove original battery
- Install battery in the rear
- Connect original -VE part of the terminal wires to your new Dark Coloured Cables
- Connect original +VE part of the terminal wires to your new RED coloured cables.
- Wire all the way to the back. (DON't conceal the wire yet. MUST TEST)
- Connect the RED to +VE terminal and DARK to -VE
- Check all connection before plugin into the Battery (-VE Go first)
- Start your car.. on all electronic, drive around (Hold the new cables once a while to test if it is HOT.)
- IF HOT : Change thicker cables...
- After testing (Better if a few days..) Conceal the wire loh.. :)

DONE !!

 

[old_junkie]

if we are to rewire the battery to the rear.. can we use normal battery?
i heard from a fren that if use the normal battery, the acidic smell will flow to the cabin

 

[johnsonlam]

Originally posted by old_junkie@Dec 2 2003, 10:53 AM
if we are to rewire the battery to the rear.. can we use normal battery?
i heard from a fren that if use the normal battery, the acidic smell will flow to the cabin

Well.. maybe true.

Anyway, if someone so hardcore until re-locate battery.. Usually either use maintanance free batt or Dry Cells loh..

 

[old_junkie]

thats the problem.... my car still wif my mech.. rewired the battery to rear... still using the normal battery... scared got smell... :)

 

[johnsonlam]

Originally posted by old_junkie@Dec 2 2003, 10:58 AM
thats the problem.... my car still wif my mech.. rewired the battery to rear... still using the normal battery... scared got smell... :)

Can try install air scope at the boot :) hahah (Joking)

ANyway, check your boot. My rear have air holes.. To flow out the hot air in the boot area (Old car Nissan Sunny).

 

[b11boy]

Yeah, that's what was in my mind when I start thinking to engine transplant....

Well, is it easily done by DIY??? or just let the mech to do that during transplant. My plan is a bit different one, add on another bat at the back there instead of move it.

Why, because after the transplan definitely will play with the ice one lor... takut not enought power lor.... :blink:

 

[headache]

The longer the battery wires(resistance) are from the alternator/regulator, the higher the losses are - Ohms' law.
Look at the location of your existing battery and look for air pathways that it gets. It may not be necessary to relocate it for cooling purpose.
My 2 cents.

 

[headache]

Originally posted by b11boy@Dec 2 2003, 11:21 AM
Yeah, that's what was in my mind when I start thinking to engine transplant....

Well, is it easily done by DIY??? or just let the mech to do that during transplant. My plan is a bit different one, add on another bat at the back there instead of move it.

Why, because after the transplan definitely will play with the ice one lor... takut not enought power lor.... :blink:

You may need to change to a higher rating alternator. Remember that it's the alternator that provides the power to your car/ICE, once the engines starts.
My 2 cents.

 

[b11boy]

true true.... but where to get it??? :blink: