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Worleydownunder

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Reply with quote  #1 
Hi all,
Just wondering if anyone has replaced their batteries, if so with which ones.?
We have a 2014 Commander S.
Cheers Coleen.
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hassro

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Reply with quote  #2 
Ha funny timing. My BMS system recently had a fault code of dry cell and the batteries were loosing power. I spoke to Conqueror Aust today and was recommended I discharge them to 10% then charge them up again to see if it clears the fault code.

I always have the trailer plugged in to 240V and BMS in storage mode with all output switches set off and only AC and Battery Isolator switches in the on position.

Will do as recommended but my concerns are dropping charge state below 50% seems I am stressing batteries.

Will let you know my outcome on batteries.



Cheers

Rolf

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Prado Grande 120 - Conqueror Australia UEV 440
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William the Conqueror

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Reply with quote  #3 
Hassro

I would be reluctant to discharge an SLA battery to 10%. This is probably the best way to kill it.

Can I suggest you either take the battery or trailer to a Battery World or similar and have them perform a load test on the batteries. This will give you a true indication as to the state of them. A simple multimeter (voltage) check won't do it.

If need be, disconnect the BMS allow to sitmfor a while and then reconnect. Discharging and recharging won't clear the fault.

Cheers

Anthony

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William the Conqueror

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Reply with quote  #4 
Hi Colleen

Hope all is well and your enjoying the trailer.

Your question is as contentious as the Toyota vs Nissan or Petrol vs Deisel debates. Batteries have made huge advances in the last couple of years. Australian brands are now well up there with reliability, depth of discharge and number charge cycles.

Depending on the BMS your trailer is running, I would consider swapping over to LiThium batteries. I'll be straight up - they are expensive. However, they come with definite advantages, half the weight, ability to deliver twice the rated power of a normal battery (I.e. They can be discharged a lot lower), quicker to recharge, can be recharged more often.

In terms of a straight out swap, you could consider Full River batterries or Century. I have started to swap out our trucks and plant to Century Batteries (Australian made, good service backup and good warranty)..

Cheers

Anthony

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comjero

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Reply with quote  #5 
Hassro,

I also would be reluctant to drop your batteries to 10%, you may also want to contact your BMS manufacturer and discuss it with them as there might be a better way to reset that fault code. As Anthony said its not good for the batteries to be discharged that far and they usually don`t come back via normal means of charging.
Anyway good luck with it let us know how you get on.
Cheers.
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Worleydownunder

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Reply with quote  #6 
Hi Anthony,
Thanks for your reply. Yes really enjoying the trailer. Getting out and about in it.
Don't think our budget can stretch to the littium batteries, so will check out the two you recommended.
Cheers.
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dogexploreroz

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Reply with quote  #7 
Hi all, have been reading this with great interest. Our commander S from new, the batteries only seem to last 2-3 days without a charge. Recently the battery health goes from 100℅ 12.8v down to usually 20-40℅ 11.89v in the space of 24 hours. I've queried this with CA and apparently this is normal due to the batteries equalising or something.

We've since bought a Honda eu20i for the times we are parked up for longer than 2-3 days.

Just wondered if this was normal across the board or do we have dud batteries ( even though they are new like a year old)

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hassro

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Reply with quote  #8 
Hi all,

I agree with what you are saying about discharging the batteries. I queried this with CA as I have never let them go below 60% and have always had 50% as my absolute maximum limit (but have never hit that point) as most articles I have read on AGM batteries have suggested 50% is the max discharge rate to maintain battery health.

Have not had a chance to call Peter back but have decided that I would not go below 50% discharge and will now look to recharge and see what the redarc bms comes back with.

Cheers all and thanks for feedback and confirming what I suspected would be best.




Cheers

Rolf



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Stuey

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Reply with quote  #9 
I replaced my batteries a couple of months ago. I went with Exide Leisure Cycle Gold batteries. All good so far.
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Little Foot

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Reply with quote  #10 
That's easy I have just replaced both batteries with Giant http://www.giantpower.com.au/deep-cycle-batteries
They were a tight fit because I out the biggest battery as potable.
I chose the DC-12V-130AH @$299 http://www.aussiebatteries.com.au/batteries/deep-cycle-agm/130ah-12v-agm-deep-cycle-battery
Other brands like exide,century batteries are a lot more and I couldn't afford to buy two at these prices. 

After all my research I found these batteries seem to the best price and came up trump on the forums,you tube.
I know this is an old add buy technology changers,so it might help others in there search in 2017/18  

Hope this help
Little Foot

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KiwiAngler

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Reply with quote  #11 
I beleive Lithium batteries will get more and more acceptance especially as the prices reduce BUT (and there is always a but) be aware the standard chargers used for existing batteries won't work with the new Lithium so that additional cost needs to be added to the battery price
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filbee56

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Reply with quote  #12 
Priced a Fusion 120AMPHR Lithium battery today -$1,600 each. Ouch!!
Cheers, Filbee56

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hassro

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Reply with quote  #13 
Hi Filbee

In most cases you would get away with less then your current agm set up as you can discharge lithium further. So for my current 210A (105A x2) I could easily get away with 1x 125A lithium but 150-200A would really be way more than enough.


Back to my battery state. Charged back up to 100% and sitting in storage mode on the BMS. No Alarm but will continue to monitor. May have been the recent hot weather causing issues?
Will continue to monitor.



Cheers

Rolf

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Prado Grande 120 - Conqueror Australia UEV 440
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Stretto78

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Reply with quote  #14 
Hi all,

I've got a big trip coming up and on the quest for some weight saving have just ordered a couple of 100ah lithium (LiFePO4) batteries to replace existing 3 x 105ah AGM's. I also have a Redarc BMS1230S2 charger ready for install to replace stock CTEK, the Redarc now has a lithium mode that provides the optimal charge voltage for these batteries.

I've got a short week long trip over Easter to Ningaloo station to test out the new setup before hitting the Kimberleys for 5 weeks in July.

I'll feed back on performance after trip if anyone interested.

Anthony
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William the Conqueror

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Reply with quote  #15 
Hey Stretto - what sort of damage on the Lithiums?

Considering changing over as soon as these batteries give up the ghost.

Cheers

Anthony

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