BATTERIES ARE NO GOOD, AND DIED EARLY, (Bushtrackers Fault)

 
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Bushtracker
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Joined: 12 Jul 2007
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Location: Kunda Park
State:: Queensland
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PostPosted: Mon Apr 07, 2008 1:26 pm    Post subject: BATTERIES ARE NO GOOD, AND DIED EARLY, (Bushtrackers Fault) Reply with quote

Hello Friends,

People who overwork their batteries, run them too low, or too long, or overcharge them from the tow vehicle to too high of voltages, or other abuse.... Have problems with batteries, and of course to hear it from them it is always Bushtrackers fault... Twisted Evil Laughing Laughing

But the 19 out of 20 who do not, and care for their batteries seldom have trouble. Wink

Interestingly we have had three sets of Customers in as many weeks, come in to do preventative maintenance "before their next big trip". In each case the batteries have still tested good, but maybe down to 25% of their life left at a guess... In each case the batteries were still good...

In each case the batteries were going on 4 years old, but obviously had good care... And they had a little dust on them coming in the vents like this one come over from W.A. , no corrosion, and typically looked like this:






Now these people are being protective, in replacing their batteries before their next big trip.... BUT I HATE TO THROW THEM AWAY !!! They are still good. I guess I will keep running some of these on my tractors and stuff at the Horse Property... Wink Rolling Eyes

I can't stand to throw away something that is still working good !!!

Batteries are something that reflect the care and consideration that people give to them in living with their vans... For reasons they may not even know, it is easy to abuse them, add on too many "New" things above what the system was designed for, or run them too low, or overcharge them from the tow vehicle when these older styled maintenance free batteries did not like over 14.4 volts.. Some people would hook up large charging lines to their tow vehicles, and some vehicles will charge all the way to 14.9-15 volts that we have seen... We suspect this is one of the main culprits in them unknowingly causing the early demise of batteries now and then.. But often, they do not understand enough of the technology to pick the cause...

In any case, our new batteries are designed to take a variable equalization voltage from 14.4 to 15 volts. This accounts for all charging parameters. And now, going on a year, there have been no faults, no one has been able to hurt them... We will keep you posted on the Tech progress...

Regards, stg
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Bushtracker
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Joined: 12 Jul 2007
Posts: 5169
Location: Kunda Park
State:: Queensland
Current Bushtracker owner:: Yes
PostPosted: Thu Jun 12, 2008 12:40 pm    Post subject: Reply with quote

At the Brisbane Show,

We had few more people reporting 4 and 5 years of Battery Life... That would be about 10 Bushtrackers in the last few months. And a surprise two reported 7 years... Stewarts from N.Z. and Maugers here in Australia... If you take the right care, it extends your battery life.
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R&R



Joined: 17 May 2012
Posts: 6
Location: Coolum
State:: QLD
Current Bushtracker owner:: Yes
PostPosted: Fri May 18, 2012 1:42 pm    Post subject: Reply with quote

We have our original batteries still going strong from 2004. We never let our batteries get below 12.3
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tolemac



Joined: 31 Oct 2010
Posts: 71
Location: Mareeba
State:: Queensland
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PostPosted: Thu Feb 06, 2014 11:04 am    Post subject: Reply with quote

Three years on mine, as good as the day they were put in. Same policy, never below 12.3 V.
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BONSAI



Joined: 26 Aug 2010
Posts: 15
Location: PORTLAND
State:: VIC
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PostPosted: Thu Nov 30, 2017 8:28 am    Post subject: Batteries Reply with quote

Picked up our van in 2011 and still using the same batteries 👍
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KeznGaz08



Joined: 06 Nov 2017
Posts: 78
Location: Ridgewood
State:: WA
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PostPosted: Wed Jul 31, 2019 10:11 am    Post subject: Reply with quote

When you say never below 12.3v, do you mean under load or not?
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Gareth and Kerryann
2014 LC200 TTD
2008 8.2 meter BT
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Bushtracker
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Joined: 12 Jul 2007
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Location: Kunda Park
State:: Queensland
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PostPosted: Wed Jul 31, 2019 11:42 am    Post subject: Reply with quote

You are questioning a very old Post from 2010..... And the answer would vary from Manufacturer to Manufacturer, depending on how the AGM batteries were built. Also, since 2010 battery technology has changed in general...

Now, 12.3 is a bit too conservative IMO, but there is a science to this and here it is:
The lower you run them, the bigger the cycle, the shorter the lifespan. In other words if you have a set of AGM batteries that have a 1000 cycle life (just to pick a number), and run them down to 10.5 to 11 volts, you might only get 300 cycles out of them. If you run them down to 11.5 volts, maybe 400 cycles. If you were conservative and only run them down to say 12 volts, maybe it is 500-600 cycles which could be four years worth.... You might be on power part of the year, or have 4 batteries, so this could be even 5 years worth of use..

The more batteries you run, the bigger your reserves, the less cycles you run. The less you run them down, the more cycles... In my 24 years of monitoring how thousands are going, I think it is fine to try and not go below 12 volts, but depending on how many batteries that could be difficult. I also think that to occasionally run them down 11.5v does not do noticeable damage or shortening of their life. The far greater damage is done by not getting them up on the high end of things to "clean the plates" so to speak, that dramatically shortens their life. Read up in the Owners Section, on LIVING WITH 12 V SYSTEMS, THE DIY TROUBLE SHOOTING GUIDE... You need to run them up on Boost to the top end, like weekly or at least bi-weekly so you do not create sulphation and resistance to taking a charge on the top end. Some AGM batteries have that Boost range they should sit at for a half hour to an hour of 14.3-4-5 v, some can go higher all the way to 14.8-15 volts, but you need to exercise them on the high end of things.. That in my experience is more important than worrying about the 11.5 to 12v lower end of the cycle... Wink

In short, 12 volt might be ideal, but 11.5 for most is just fine as long as you don't do it all of the time... Everyone will have a subjective opinion, but I get this from dealing with maybe 15 different types of batteries over the past 24 years, and monitoring how thousands of Bushtracker Owners are going in the Lifestyle.

Kind regards, Director, Bushtracker
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KeznGaz08



Joined: 06 Nov 2017
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Location: Ridgewood
State:: WA
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PostPosted: Wed Jul 31, 2019 2:43 pm    Post subject: Reply with quote

Thank you for that Steve, I do spend alot of time reading this site, thank you.
The reason I asked is that I've seen many a post where theres reference to low end voltages and just siezed this opportunity to ask.
So when let's say first thing of a morning when the diesel heater kicks in and you see your voltage go as low as 12 or even 11.9v thats not an issue? As it returns to 12.4v once the heaters up and running.

It's just got me thinking if people are referencing the voltage with no load, that's all.

Thanks once again.
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Gareth and Kerryann
2014 LC200 TTD
2008 8.2 meter BT
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Bushtracker
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Joined: 12 Jul 2007
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PostPosted: Wed Jul 31, 2019 4:58 pm    Post subject: Reply with quote

KeznGaz08 wrote:
Thank you for that Steve, I do spend alot of time reading this site, thank you.
So when let's say first thing of a morning when the diesel heater kicks in and you see your voltage go as low as 12 or even 11.9v thats not an issue? As it returns to 12.4v once the heaters up and running.

Thanks once again.


No, quick answer, I would not be concerned about it....

Kind regards, Stg
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KeznGaz08



Joined: 06 Nov 2017
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Location: Ridgewood
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PostPosted: Wed Jul 31, 2019 5:27 pm    Post subject: Reply with quote

Cheers.
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Gareth and Kerryann
2014 LC200 TTD
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