Heavy Duty Starter? Heavy Duty Alternator? Conversion to a 2-Battery System?

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Wed Jan 10, 2018 5:58 am

Hello Again Everyone,

Can anyone point me in the right direction regarding a few parts I'm considering for my 93' L300 Exceed Deli:
a. Heavy Duty Starter/Solenoid (Is there such a thing?)
b. Heavy Duty Alternator (Part?)
c. Step-by-Step for converting to a 2-Battery System (Battery Recommendations, as well)

Thanks in advance.

Post by **Growlerbearnz** » Wed Jan 10, 2018 3:14 pm

I don't know of any heavy duty starters, the factory starter is pretty solid though and rarely gives trouble.

Alternators with a higher power output are available, usually around 90-100A. Search Ebay etc. for "4D56 alternator". The range of replacement alternators is limited though, as the alternator has the vacuum pump on the back. If you need anything more than 100A you'd have to fit some other kind of vacuum pump (electric would be easiest), plug the pump's oil feed and return on the engine, and then make a different alternator fit. That said, a stock Delica is fairly basic and doesn't really use that much power.

A 2-battery system is easy- fit a second battery and connect it to the first, positive to positive, negative to negative. Here's my old setup:

: Batteries.JPG (84.46 KiB) Viewed 11698 times

The box on top houses a bunch of relays and other complicated stuff which isn't necessary for a basic twin battery setup.

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Thu Jan 11, 2018 4:39 am

Growler,

Any maintenance-free batteries that you would like to recommend that are a sure fit? Additionally, are there any parts that I need to make the conversion?n

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Thu Jan 11, 2018 4:42 am

Growler,

Also, do you have a brand/part for that Heavy Duty Alternator? Thank, again.

Post by **Growlerbearnz** » Thu Jan 11, 2018 2:31 pm

F0urEvrCaR22 wrote:Any maintenance-free batteries that you would like to recommend that are a sure fit?

Also, do you have a brand/part for that Heavy Duty Alternator? Thank, again.

I have a pair of Century NS70ZMF batteries currently fitted, but it wouldn't be too hard to go to a local parts store with a tape measure and find something that fits. I had to make up a new battery retaining bar, and a couple of cables to connect the batteries together.

Alternators: Ebay has this one: https://www.ebay.com/itm/Alternator-110 ... 2234776858

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Sun Jan 14, 2018 3:06 am

Do you have the part number? I can't see it in the photo

bonge31 · Post by **bonge31** » Sun Jan 14, 2018 3:13 am

I'm probably sure that a lot of people already know this blog but there are a lot of very useful things on it!!

http://dinoevo.de/dual-battery-system/

Sent from my ONEPLUS A3003 using Tapatalk

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Sun Jan 14, 2018 4:20 am

All,

How can you identify which battery the starter is pulling from? I want to ensure that I have the batteries set up in the right way. Are there any kits you would recommend?

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Sun Jan 14, 2018 5:19 am

All,

Just to make sure I have this right, one battery is a deep-cycle "Odyssey 35-PC1400 (still not sure which side "right/left" it should be installed in relation to which battery is used by the starter and alternator)" and the other should be...

This is what I need a recommendation on. I want a Maintenance-Fee Second Battery that will fit/coordinate with the "Odyssey 35-PC1400". Which side of the battery bay (left or right) should it be installed? Thanks in advance

bonge31 · Post by **bonge31** » Sun Jan 14, 2018 6:37 am

How it's done on the blog is that the Odyssey is the one linked to the starter and everything else is on the auxiliary battery.
The two are linked by the IBS Dual battery system. With that, you can choose to disconnect the auxiliary one from the starter one or use it in addition if you need more power. The left one is the starter one.
That's how I understand the thing.

Btw, I'm from France so I apologise if my English is not very clear.

Sent from my ONEPLUS A3003 using Tapatalk

sk66 · Post by **sk66** » Sun Jan 14, 2018 9:16 am

Are you wanting to convert to a 2 battery system like the OEM, or are you wanting to add a second "accessory battery?" If adding an accessory battery you will need battery management switching so that it can be separated from the main battery while being used (drained). In that case I would probably place the battery out back somewhere instead of compromising on sizes.

I would be very cautious of getting a high performance AGM type battery (odyssey)... if your charging system does not run above 14v (14.2-14.7) then it will greatly reduce the battery's lifespan.

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Tue Jan 16, 2018 5:13 am

sk66/bonge31,

I'm thinking I want to have the capacity to expand to an accessory battery (although, I have no accessories at the moment). Additionally, I want to "winterize" my Deli like the OEM models. When it comes to a battery setup, I'm looking for the most versatile 2-battery setup. I plan to install a Heavy Duty Alternator as well. So, I saying that WANT (not need) a second battery. I'm look at the "Odyssey 35-PC1400T" as the "starter" battery (is this right?). What would be a proper second battery? Given what I want right now, no accessories but extra cold-cranking amps, do I need a power management system?

sk66 · Post by **sk66** » Tue Jan 16, 2018 11:30 am

I think you need to work this "backwards" to the battery choices...

First would be the alternator upgrade, if it doesn't charge at a high enough voltage (14.2-14.7v) then the high performance AGM batteries (odyssey) are not a good choice. So source the alt first and then get batteries to suit.

Second would be where the second battery is going to live. If you want larger capacity/performance then maybe it would be better somewhere in back or under the vehicle rather than stuffing two smaller batteries into the battery box.

Then determine the primary function of the second battery... at the very basic level all you would really need is to wire them in parallel for the extra CCA. But I would put one on a switch so that when it is being used to run accessories it is isolated from the starting battery... prevents you inadvertently draining both and not being able to start. Without a battery management system you would need the second battery to be a deep cycle type, and the alternator suited to charging it (probably best either way). With a battery management system you can monitor the battery to ensure you don't drain it below a safe level and won't necessarily need deep cycle types. A battery management system also manages all the switching/charging for you, but it's not absolutely necessary.

Here's something interesting I've found... If you plug a 12v battery (i.e. jump starter booster pack) into a cigarette lighter it will power the accessories circuit with the ignition off (radio, clock, other 12v sockets, etc). So I just have a jump pack behind the driver's seat that I plug into the outlet back there with one of those 12v socket jumper cable things... I would be hesitant to use it to actually jump start a dead battery through that cable. But it works to power the accessories and recharge the jump pack when the vehicle is running. Although I only tried it once, it does seem like it adds a bit of CCA boost as well.

F0urEvrCaR22 · Post by **F0urEvrCaR22** » Wed Jan 17, 2018 5:06 am

sk66/All,

After reading your response, I think I had better stay away from the Heavy Duty Alternator and the Deep-cycle Batteries (I'm thinks it's overkill for my needs). I think, now, I just want a basic 2-Battery System primarily for the extra CCA. So what would you advise on the setup? Here is what I think I understand:

1. Stock Alternator
2. Battery 1 (Left): Starter Battery (Can you recommend a Good Maintenance Free Battery that will fit in the battery area?)
3. Battery 2 (Right): Extra Cranking Amps and Possible Light Accessories
4. Battery Switch
(*Batteries Connected in Parallel)

sk66 · Post by **sk66** » Wed Jan 17, 2018 1:14 pm

If you just want the basic (OEM) dual battery system just put the two biggest SLABs you can fit in the tray and wire them in parallel (positive to positive). They will both always charge, run accessories, and provide start together.
When you wire batteries in parallel the voltage remains the same but the amperage adds. So two smaller 12v SLABs w/ 600CCA ea. will give you 12v/1200CCA instead of a single larger battery which may only give 12v/800CCA. You could put a switch in the positive connection between the two batteries so that the "outside battery" is disconnected to run accessories w/o affecting the "start battery". But it will only run accessories wired to it, not the normal accessories off the key switch. And it will potentially leave you with less CCA for starting than a single large battery might (if drained).

Unless you really think you need the most possible CCA's I would suggest just sticking the most powerful single battery you can fit in there and be done w/ it. Dual batteries are more expensive and it doesn't sound like you really have the need (i.e. kitchen/appliances/accessories).