Battery Jump Starter Pack for N70ZZ Battery

[Lionelgee]

Hello All,

After my Battery Fighter trickle charger had a fixed green light - as it has shown for a number of days - I reinstalled the battery and I turned the key the only thing that came on were the panel lights - not even a whir from the starter motor. "Not happy Jan"

The battery is a Century 4WD Battery N70ZZ 4WD-760CCA.

What battery jump starter pack would you recommend so I can at least get the damn vehicle started?

When I put the battery back on the Battery Fighter and checked it a hour later, the light was back on constant green. This equals fully charged! Something is going amiss somewhere. I will disconnect the battery and put the Battery Fighter back on to see what happens.

Next time I hope to have the recommended battery jump started and be able to at least get the vehicle started so I can achieve something.

Kind Regards
Lionel

[trout1105]

Have you checked the voltage coming out of the battery?

[Gordie]

Have you checked your battery fighter....after a few years, mine started permanently showing a green light. I replaced it with a noco.

[Lionelgee]

Have you checked the voltage coming out of the battery?

Hello Trout,

The battery is flat on my multimeter too [wink11]

I would still like to get a battery jump starter pack though - regardless. Oh for the Century battery - not the multimeter. [biggrin]

Kind Regards
Lionel

[trout1105]

The cost of a decent jump starter pack is about the same as a new battery.
If you get a new battery you won't need the jump starter pack [bigwhistle]

[Lionelgee]

Have you checked your battery fighter....after a few years, mine started permanently showing a green light. I replaced it with a noco.

Hello Gordie,

I have had the Battery Fighter for a couple of years. The Positive clamp actually corroded away. I replaced it with a new clamp that I solder the lead in place. Just a while ago I turned the Battery Fighter off again - disconnected and reconnected the clamps. Now I have a flashing green light.

When I bought the Yanmar 3 cylinder diesel tractor second hand it came with a N70 ZZ battery installed. When that battery died I replaced it with the Century battery. The N70 ZZ is the same battery that fits the Land Rover six cylinder petrol too.

I have noticed that with the tractor if the battery is not fully charged it will not kick the starter motor over. Yet when the battery is taken out of the tractor and put into my Land Rover Series III it starts straight away.

I am about to post a thread on the Yanmar tractor forum to see what battery other people are using. Just because it came with the N70ZZ does not necessarily mean it is the best battery for it.

Kind Regards
Lionel

[Tins]

The cost of a decent jump starter pack is about the same as a new battery.
If you get a new battery you won't need the jump starter pack [bigwhistle]

So, what if the battery is not old, just flat? [bigsad]

I reckon I'd be getting another charger.

[Gordie]

Sounds like the battery isn't good enough for the yanmar diesel Lionel. Petrol motors are a lot easier to spin over. I had an old fordson major tractor, best thing it had was a decompression lever...big-ass battery would struggle to turn it over when cold, pull the decompression lever and it would spin freely.

[Lionelgee]

The cost of a decent jump starter pack is about the same as a new battery.
If you get a new battery you won't need the jump starter pack [bigwhistle]

Hello Trout,

Yes I know where you are coming from. The battery is less than two years old. The vehicles it is used for are not road registered so they are not daily drivers. That is why I bought the Battery Fighter so the battery can be maintained - so when I want to start something - I was reasonably confident that the battery would be ready to go.

The positioning of the battery in the tractor is far from user friendly. If I put a battery in the sod of a place I want to be able to just turn the key and have vroom vroom sounds emitting from the engine. The jumper pack will give me a back up.

Oh well the grass in the paddock will just get a little longer and consume next weekend as an activity. I will throw the battery into one of my Series IIIs and go for a paddock bash instead!


Kind Regards
Lionel

[Lionelgee]

Sounds like the battery isn't good enough for the yanmar diesel Lionel. Petrol motors are a lot easier to spin over. I had an old fordson major tractor, best thing it had was a decompression lever...big-ass battery would struggle to turn it over when cold, pull the decompression lever and it would spin freely.

Hello Gordie,

I used to use the battery for my 2.25 litre Series III diesel in the Yanmar two cylinder diesel motor - it is only a 24 horse power engine. That battery died before I got the Battery Fighter.

Wikipedia says the 2.25 diesel has 62 hp Not sure how accurate Wiki is though cough cough

I will see what battery the Yanmar forum recommend.

Kind Regards
Lionel

[Gordie]

I see that the N70ZZ has 720 CCA. That is plenty for the yanmar, if the battery is in good condition, I would say. After my experience with the 'battery fighter'....I suspect that yours has let your battery deteriorate.

[trout1105]

I got one of those little jump starter gizmos for Christmas, About the same size as a mobile phone But fatter and it was able to jump start my mates Hilux 4 cyl diesel I'm doubtful that it would start a tractor though.
As you battery is less than 2 years old it Should still be good to go, Sounds like the problem is the charger.
Have you got another battery charger you can try to see if you can get a charge into the battery?

[Lionelgee]

Hello All,

here is a bit of footage from the USA of a stable mate of my little tractor - mine came painted red. I think the European market got red paint while the USA and other areas came in green. The video captures their sound really well. Accessed May 28th 2017 from, Pulling logs out of creek with a Yanmar 240D diesel - YouTube (https://www.youtube.com/watch?v=KfR6nR5Y9j8) . My tractor is a four wheel drive one as well - YM 240 D. Here is specifications sheet for it - no battery details mentioned though Accessed May 28th 2017 from,
TractorData.com Yanmar YM240 tractor information (http://www.tractordata.com/farm-tractors/002/4/0/2400-yanmar-ym240.html)

Most stock photograph online seem to be the 2WD versions so getting a youtube clip of the 4WD like mine was a good score

Kind Regards
Lionel

[Lionelgee]

Hello All,

I tracked down a battery for the multimeter. The N70ZZ battery is reading at 13.25 volts. I tried my PROJECTA Automatic 6/12V 2700mA 2 Stage Battery Charger and within 10 minutes its green "charged" light came on. I hooked up the Battery Fighter and it went to a fixed green light too.

I started to look for other possible faults. Fuses are all okay. The positive lead to the starter motor could be moved a little bit at the terminal post so I tightened the nut up. The negative or earth cable is a bit frayed and is only a eyelet pinched by a 13 mm bolt to the radiator frame. I will see if I can get a new one; or I will make a replacement. Also wire brush the metal and reinstall the eyelet and fixing bolt, then paint over it.

The ignition switch was close to being frozen too. I will pull it out and clean it later on in the week.

I will also wait to see what my friends on the US of A based Yanmar tractor forum say about what characteristics the battery should be for my tractor.

If all that fails I will have to call a mobile auto electrician. The grass can get that bit longer in the paddock. Flat grass is overrated anyway!

Kind Regards
Lionel

[67hardtop]

Hello Trout,

Yes I know where you are coming from. The battery is less than two years old. The vehicles it is used for are not road registered so they are not daily drivers. That is why I bought the Battery Fighter so the battery can be maintained - so when I want to start something - I was reasonably confident that the battery would be ready to go.

The positioning of the battery in the tractor is far from user friendly. If I put a battery in the sod of a place I want to be able to just turn the key and have vroom vroom sounds emitting from the engine. The jumper pack will give me a back up.

Oh well the grass in the paddock will just get a little longer and consume next weekend as an activity. I will throw the battery into one of my Series IIIs and go for a paddock bash instead!


Kind Regards
Lionel
Buy some sheep Lionel

[Lionelgee]

Buy some sheep Lionel


G'day Rod,

We had two goats beforehand they ate everything except the grass. Then they started to charge my wife and lower their horns at her. The next thing they were in the "Give Away" section of the local newspaper.

Since then it has been ride on mowers and tractor with slasher. The steering quadrant of the ride on has worn down and there is no adjustment. Unfortunately the Rover Rancher manufacturers no longer exist and MTD - the new owners do not stock the replacement steering quadrants any more.

Next stage is that I am going to get a thin cutting disk to the bottom of the quadrant's mounting rod. I will then tap a thread into the bottom of the mounting rod and I will put a bolt and washer in it - or a bit of flat bar. I will then make up a keyway out of some steel. When mounted back on the mower's main frame this should allow for some adjustment in the quadrant.

Just a well winter is not too far off - we might get a frost and it will knock the grass back a bit.

My former career was in parks and gardens. Our main task was to make parks look nice and neat; with grass all looking well maintained.- you know level and flat.

I like the paddock having nice variation in heights and seed heads growing around the place. Upon sunset the gloaming light through the grass flowers and seed heads are picturesque. However, this view is not shared by SWMBO. Something to do with red bellied black and king browns things that go slither I think. Some people have no sense of adventure!

Not that I am too cut up - pardon the pun - about not being able to mow the grass. There are better ways to spend the weekend. Anyway off for a stroll in some long grass with the dogs to admire the view....

Kind Regards
Lionel

[67hardtop]

Does she get in ur old land rovers Lionel? She would have to have a sense of adventure, thats for sure...lol

Cheers Rod

[Lionelgee]

Does she get in ur old land rovers Lionel? She would have to have a sense of adventure, thats for sure...lol

Cheers Rod

Wot to quote "those rusty bits of crap that littler the place and block the view".

Kind Regards
Lionel

[67hardtop]

Oops. I opened the proverbial can of worms...sorry.

Cheers Rod

[V8Ian]

https://www.aulro.com/afvb/images/imported/2017/05/119.jpg

[Lionelgee]

Oops. I opened the proverbial can of worms...sorry.

Cheers Rod

G'day Rod,

Nope - just a wee difference of opinion on the merits of vehicles from the the 1970-80s. I see the spares vehicles as resources that have valuable parts on them that are not as readily available as they once were. The other person's opinion has already been stated in an earlier posting. They reckon opposites attract and it has worked for us for over 30 years so far.

Kind Regards
Lionel

[Lionelgee]

https://www.aulro.com/afvb/images/imported/2017/05/119.jpg

G'day Ian,

Unfortunately the Japanese in the 1970-80's did not see the merit in those bent bits of iron that fit at the front of the engine. Nor, is there a decompression valve in the two cylinder diesel engine. We are talking about a Yanmar Tractor

Kind Regards
Lionel

[Lionelgee]

G'day Rod,

Just read your signature line - is the Athol Hedges roof a type of safari roof?

Kind Regards
Lionel

[67hardtop]

No Lionel, its just a steel roof with rounded corners and its the same height front to back, unlike land rover roofs that slope down at the front. They tend not to last too long coz they suffer from rust coz they werent really rust proofed.

Cheers Rod

[Lionelgee]

Hello All,

I heard back from the USA Yanmar Group - word is that the original parts manual states that the battery to quote "calls for a N70Z battery" which is what I have with the N70ZZ. I also found somewhere else that the battery is specified just as 12v 75 ah.

The Century N70ZZ is rated at 85 amp hours so it is better than the specifications - although the specs do date back to the 1970-80.

Some of the latest Century Ultra batteries are rated at 95 or 100 amp hours. When I checked the Century bank for Land Rover Series III Petrol and diesel 109s the current battery is not coming up as the recommended ones - only the "Ultras". Yes they the dearest ones - funny that!

Well at least something is right with the N70 being fitted to my Yanmar tractor [wink11] I will trace the circuits back from the battery after I replace the earth lead to find out what else is possibly amiss.

Kind Regards
Lionel

[Marty90]

Don't know if it's been covered,but a static charge doesn't mean much. OK,it needs to be@12.6 v but you need to check it under load. The battery could have a n open circuit cell. Good voltage static,0 v under load.

[DeeJay]

Lionel,
It seems to be a bit of a secret but Century had a bad batch of Overlander batteries & your purchase date seems to fit. I had one fail in less than a year & it was replaced under warranty after being sent back to Century. I think that was done in Feb last year. I crossed the Simpson later in June & because I run 2 batteries parallel, I never noticed that the replacement battery had failed too. As I bought the battery from a specialist shop I went back with the second battery & when I said that it had taken some horrible corrugations & the Simpson (5,000 klm) it was swapped no questions asked.
Naturally I was reluctant to settle on the same model ( N770Z 4WD Overlander) however the owner assured me that there was some "design Improvements" done & that there had been a problem with some earlier batteries.
I've done a few high plains trips with no further issues.

Regards, David


Hello All,

I heard back from the USA Yanmar Group - word is that the original parts manual states that the battery to quote "calls for a N70Z battery" which is what I have with the N70ZZ. I also found somewhere else that the battery is specified just as 12v 75 ah.

The Century N70ZZ is rated at 85 amp hours so it is better than the specifications - although the specs do date back to the 1970-80.

Some of the latest Century Ultra batteries are rated at 95 or 100 amp hours. When I checked the Century bank for Land Rover Series III Petrol and diesel 109s the current battery is not coming up as the recommended ones - only the "Ultras". Yes they the dearest ones - funny that!

Well at least something is right with the N70 being fitted to my Yanmar tractor [wink11] I will trace the circuits back from the battery after I replace the earth lead to find out what else is possibly amiss.

Kind Regards
Lionel

[67hardtop]

Did you get kermit the tractor sorted yet Lionel??

Cheers Rod

[Redback]

Hello All,

After my Battery Fighter trickle charger had a fixed green light - as it has shown for a number of days - I reinstalled the battery and I turned the key the only thing that came on were the panel lights - not even a whir from the starter motor. "Not happy Jan"

The battery is a Century 4WD Battery N70ZZ 4WD-760CCA.

What battery jump starter pack would you recommend so I can at least get the damn vehicle started?

When I put the battery back on the Battery Fighter and checked it a hour later, the light was back on constant green. This equals fully charged! Something is going amiss somewhere. I will disconnect the battery and put the Battery Fighter back on to see what happens.

Next time I hope to have the recommended battery jump started and be able to at least get the vehicle started so I can achieve something.

Kind Regards
Lionel

I have one of these, these little mini jumper starters are brilliant, not this exact model, but close.



Mini Jumpstarter™ is a mulit-function Jumpstarter and POWER bank (http://www.minijumpstarter.com/)

[DiscoMick]

Sounds like the battery, not the starter, was your issue.

[Lionelgee]

Did you get kermit the tractor sorted yet Lionel??

Cheers Rod

Hello Rod,

No not yet. Due to work I have to wait until the weekend to spend time on the tractor. On Saturday I am going to take the battery for a drive to a battery shop to get it tested under load. Also, to get a new earth lead.

Kind Regards
Lionel

[Lionelgee]

Hello All,

I took the battery to an independent battery place and they tested the N70ZZ battery under load. The 720 CCA battery was putting out 340 cca. I have had the Battery Fighter hooked up to it since my last post and the light was fixed green. All fully charged when I took it for its test. I have walked out the store with a new battery - not one of made by the crew who produced the battery I got tested. Next in line for replacement is the Battery Fighter.

I just got back from town so I will install the new earth lead and see if the tractor makes vroom vroom sounds. Fingers crossed that it was just the battery after all.

Kind Regards
Lionel

[Lionelgee]

Hello All,

Do new batteries come fully charged?

Should a new battery need charging after less than four hours of operation in a tractor?

I had to move the cable a bit before the tractor could start - like a sweet spot where it prefers being . I had moved it a bit earlier after I tightened it up. There were loud clicks to the solenoid - unlike before with the older battery - that produced no sound at all.

After about after three hours of operation the damn thing stalled in the creek crossing on the nature strip and then totally refused to start again.

The tractor had to be towed out back into my paddock courtesy of the next door neighbour's Japanese four wheel drive. My only operational Series III has an issue with selecting four wheel drive so despite a valiant attempt in two wheel drive I had to concede the point - swallow my pride and get a tow.

I am going to get an auto electrician in to check to see if the generator or alternator is charging properly. Or to see if something is drawing current out of the system.

The new battery has been on charge for a couple of hours now.

I have just returned with a SJS Smart Jump Starters Pty Ltd Smart Jump Start Charger Generation 2 for up to 4500cc diesel and 7000cc petrol engines. SJS06G2 Smart Jump Start Charger 600A (http://smartjumpstarters.com.au/product/sjs06g2-smart-start-charger-600a/)

At least next time I may be able to jump start a flat battery. Now to find a mobile auto sparky.

Kind Regards
Lionel

[V8Ian]

It sounds like a new solenoid may be in order, Lionel.

[Lionelgee]

It sounds like a new solenoid may be in order, Lionel.

Hello Ian,

I will see what the auto electrician says first. So far I have spent over $400 in battery related stuff today. Therefore, the cost of an auto electrician getting to the bottom of the issue is going to be value for money. Also, being able to just turn a key and then go out and mow or pull stuff around with the tractor.... when I want to will be worth it.

The Jump Starter is fully charged now. The new battery is going to be left charging over night. Tomorrow I might be able to actually finish mowing the paddock. Just got to the other side of the creek and the job is done. Main paddock and nature strip tamed - just the section of paddock across the water, dubbed Van Diemen's Land to go!

Next RDO there will be an auto electrician coming here to sort the tractor out.

Kind Regards
Lionel

[Lionelgee]

Hello All,

I fully charged the new battery and installed it in the tractor. No click of the solenoid. I pulled the covers back from the wires on the starter solenoid and I noticed that the insulation has bubbled up and melted on the positive and earth wire. The is now more movement in the plastic disk face where the two terminal posts are secured to.

A new solenoid is $48.00 USD so I am about to order one + freight. My tractor is considered a Grey Import and the local Yanmar dealers are not that friendly towards my tractor. They are missing out on business however that is the way they like to play.

Does anyone know of a Yanmar dealer here in Australia who is not so anti-grey market tractors? Otherwise I will go down the route of two American based suppliers I know of.

Kind Regards
Lionel

[Gordie]

I would take the solenoid to a nearby auto electrician and see if they can supply you with another.

[V8Ian]

Lionel, I used to own a (12V) truck that that regularly lunched solenoids, I fixed it by installing a 24V solenoid. Try your local sparky, he can give you the best advice and supply over the counter, probably cheaper.

[Lionelgee]

Hello All,

Just an update - the starter solenoid arrived from the good ol' US of A last week. I got some time this weekend to fit it.

I turned the key to the left to get the glow-plugs warmed up ... turned the key to right and the motor fired up straight away!

[bigsmile1]

Before going down the overseas supply route I was cited lots of interesting information about "Grey Market Tractors" no authorised agent allowed to supply parts to vehicles not imported to Australia. Also, that I would have to buy a complete starter motor as starter solenoids are not sold separately.

So I went to overseas suppliers armed with measurements and photographs of where the starter solenoid engages with a lever that brings the stater motor gear forward. It turns out that there are three separate types of arrangement where the starter motor engages the lever. Plus one of these has six or four Millimetre diameter bolts to secure the solenoid.

After a couple of emails between myself and Hoye Tractor Parts from Texas I had the stater solenoid delivered to my door. A special thanks goes out to Aaron from Hoye's.

I deliberately drove through creek where it was towed out a month or so ago by my next door neighbour's four wheel drive. Then I proceeded to mow the other side of the creek and tamed the long grass.

After all this was done I cleaned the tractor and drove it back to its shed. :banana::banana::banana:

Kind Regards
Lionel

[trout1105]

All is well that ends well, Nicely done Mate [thumbsupbig]