Dual batteries for Landcruiser 200 t/d

Submitted: Thursday, Apr 17, 2008 at 21:03
ThreadID: 56737 Views:14579 Replies:7 FollowUps:2
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I am waiting for my new landcruiser 200 T/D (3 month delivery time). I understand it has a dual battery system. I am getting a 12V socket fitted for my Engel. What is peoples advice/opinion about upgrading the dual battery system? How would doing so affect my Toyota warranty?
I am a bit of a newbie so all advice is welcome

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Reply By: Mainey (wa) - Thursday, Apr 17, 2008 at 21:59

Thursday, Apr 17, 2008 at 21:59
why not ask your Toyota dealer about anything that WILL affect your warranty ??

I would add a third battery, a specific Deep Cycle battery/ies isolated by an Electronic isolator.

Mainey . . .
AnswerID: 299091

Follow Up By: Member - Prickle (SA) - Friday, Apr 18, 2008 at 21:46

Friday, Apr 18, 2008 at 21:46
If you can find room under the hood!!!

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Reply By: autosparky - Thursday, Apr 17, 2008 at 22:14

Thursday, Apr 17, 2008 at 22:14
you can use isolation sytems of your choice and the power socket in the rear should be capable of 10 amps max
AnswerID: 299094

Reply By: Gone Bush (WA) - Thursday, Apr 17, 2008 at 23:57

Thursday, Apr 17, 2008 at 23:57
Phil, there is a lot of info on the LCOOL website.

LCOOL 3rd Battery

Including this response from Toyota about fitting a third battery:

"Question was asked on another fourum about extra battery and warranty problems.


Toyota published information relating to modifications is:
Toyota New Vehicle Warranty will not apply to any non genuine part or accessory, nor to an original component or accessory if a failure occurs that is attributable to a modification or to a non genuine part.

Additional comment:
Toyota would not usually specify any particular modification in regard to any “blanket ban” on warranty coverage, and can only provide specific information and advice in relation to genuine Toyota vehicle components and accessories. It is essential that owners considering modifications to Toyota vehicles ensure they are carried out only by expert suppliers who can demonstrate a full understanding of, and will accept responsibility for, any impact of the modification on the vehicle systems and components.

To assist forum members, the following observations are made in regard to fitting an additional battery to the LC200 1VD-FTV common rail diesel engine version (w/dual battery std.equipment)

• Space in the engine bay is very limited and, critically, the engine wiring harness connectors to the main engine ECU are located at the firewall at the rear passenger side. It is essential that no interference or loading is placed on the wiring harness and/or on these connectors if an additional battery is located into this very limited space.
• Other components in this area include electrical junction box, the fuel filter/sedimenter, the EDU relays / injector drivers (300V output) - very careful consideration required if relocating these parts.
• Mounting additional batteries on inner fender panels applies significant additional loadings, especially if operating in severe conditions - panel cracks may occur.

As a possible alternative to fitting an additional battery in the engine bay, consideration is being given in the aftermarket industry to upgrading the original LC200 55Ah dual batteries with batteries of similar or more capacity to the single 65Ah battery fitted to the LC 7# with the basically same 1VD-FTV engine. (Same capacity /compression ratio, reduction type starter motor etc, - additional battery capacity provided on LC200 to cope with the many additional electrical systems). (LC 7# w/1VD has 1560watt alternator - LC200 w/1VD has 1800watt.)

The LC200 drivers side battery is wired in parallel to the passengers side battery which is connected directly to the vehicle electrical systems. The proposals noted consider using the addtitional capacity of an upgraded battery on the drivers side to power accessories, in conjunction with low voltage cutout and suitable isolator to protect the passenger side battery capacity for starting.

In considering any such modifications, owners are again urged to engage only expert suppliers who can assure a complete understanding of the vehicle electrical systems and specifications.
end "

It would appear that most people are upgrading their original batteries to N70 size with an isolator.

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AnswerID: 299114

Reply By: Member - Phil G (SA) - Friday, Apr 18, 2008 at 08:51

Friday, Apr 18, 2008 at 08:51
100series had the same issue. If you want to protect your warranty (whatever that is :-))), then do nothing in the first instance. Provided your fridge is an economical one like the 40 litre waecos, engel, autofridge etc, you'll have no probs running it overnight and most of the following day. If you upgrade to a pair 80Ah Exide Extremes or equivalent, you'll run a fridge for two nights and one day no problems.

Lately, I've been running two Engels off a pair of Exide Extremes and can go 2 nights and one day, with the voltage still being about 12.35. And my 1HD-FTE starts fine. In fact it starts fine at 12.15V on a single battery.

Install the 3rd battery when your warranty is running out.

Interesting problem when the TD 79series came out. People fitted 2nd battery trays, and moved a "black box" to do so. Then their ECU would fail out the back of nowhere. Ended up that that black box needed a very good earthing point which may be lost when it was moved. So theres some substance to Toyotas warning.
AnswerID: 299136

Reply By: Member - Crazie (VIC) - Friday, Apr 18, 2008 at 11:21

Friday, Apr 18, 2008 at 11:21

I just read an article in the 4x4 trader, says piranha has developed a thrid tray for the 200TD, ad a second tray for the petrol

AnswerID: 299152

Reply By: Richo (SA) - Friday, Apr 18, 2008 at 12:27

Friday, Apr 18, 2008 at 12:27
I am running my 200 TTD and have isolated the two batteries. I am running one to power accessories, fridge etc.
It is working fine and starting no problem.

Piranha are doing a third battery tray but it means moving quite a lot of electrical stuff up near the passenger firewall. There is no way known I would be playing with any of that. The other third battery option is a Thumper or similar in the back.

A salesman at TJM also told me that someone (not sure who) had developed a carrier that went under the vehicle at the back on the passenger side on the chassis. Sounds feasible but a bit of a pain to get to.

AnswerID: 299165

Follow Up By: Member - Tony W (VIC) - Friday, Apr 18, 2008 at 21:22

Friday, Apr 18, 2008 at 21:22
I did it this way too and have had no problems, I can even join then if it is really cold.

The Pirhana one moves some scary stuff IMHO, it also only gives you a n50 battery and takes up the spot I have in mind for the compressor.

Teh unit under the back is O/L. It would have to be a SLA.
FollowupID: 565379

Reply By: TD100 - Friday, Apr 18, 2008 at 20:47

Friday, Apr 18, 2008 at 20:47
i was only this morning looking at a VX T/D and thinking not much room there for a 3rd battery,wondering what people will come up with,i have always opposed splitting the factory batteries in the 100s,plus warranty could be voided if done,hence installing the 3d in my T/D.100 series that is.graham werner in ftg melbourne have a TD VX and GXL sitting there,might be worth a call.Paul
AnswerID: 299222

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