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Author Topic: Wiring strings of batteries  (Read 6136 times)
camillitech
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« Reply #30 on: August 23, 2013, 08:47:08 PM »

I once used jublee clips to hold the copper tight to the pole,
                                                    By the time I had done the 11th connection,I started all over again because I discovered a nice neat way of doing it.I slit the oil pipe up the middle and pushed the halfs down over each side of the poles and just screwed up the clip.There is a hell of a grip in the method.It did look a bit odd but it did the job.The clips came out of the 1euro shop,6 for 1euro.dDesperation is the mother of invention,Necessity can wait.
                                                    Biff

HUMPH, that's nothing, I once drilled through the posts, used steel bolts and then copper pipe bashed flat as a connector  Roll Eyes Well, you can imagine just what a green ball of fur that lot turned into  hysteria  hysteria
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martin
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« Reply #31 on: August 23, 2013, 08:51:39 PM »

Am I missing something? - what's wrong with these? - they're hardly expensive! - http://www.ebay.co.uk/itm/Pair-Of-Marine-Yacht-Ship-Boat-Car-Battery-Terminals-Clamps-Universal-6V-12V-24V-/261268182517
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camillitech
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« Reply #32 on: August 23, 2013, 08:57:11 PM »

Am I missing something? - what's wrong with these? - they're hardly expensive! - http://www.ebay.co.uk/itm/Pair-Of-Marine-Yacht-Ship-Boat-Car-Battery-Terminals-Clamps-Universal-6V-12V-24V-/261268182517

Yes Martin, you are missing something, CJ is skint and those things are pure 5h1te being zinc passivated 'Mickey mouse metal' from China  hysteria A half decent pair will cost you a fiver and CJ needs loads.
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'Off grid' since 1985,  Proven 2.5kW, Proven 6kW direct heating, SI6.OH, 800ah Rolls, 4.75kW PV ,4xTS45, Lister HR2 12kW, , Powerspout pelton, Stream Engine turgo, 60 x Navitron toobs and a 1500lt store. Outback VFX3048 and 950ah forklifts for backup,
clivejo
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« Reply #33 on: August 23, 2013, 09:10:39 PM »

I have a box full of those terminals but they dont fit!!  I also have pre-made ones too.  But my poles are 26mm way too fat for these  Cry
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biff
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« Reply #34 on: August 23, 2013, 09:15:18 PM »

Well have a go at the jublee clip and the plastic covered oil pipe Clive,
                               Like I said,it really gripped the pole perfectly,they ended up looking slightly odd but i have to admitt,I could have done them neater or get some 22mm copper pipe,flatten a short length,enough to connect two batteries,leave 25mm unflattened each end,cut a slit in the unflattened pipe and push one end down over the pole,fit a jublee clip and you have it but again,mabe it looks odd.A little practise would get it looking right,especially if the flat copper was taped up.
                                                                    Biff
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clivejo
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« Reply #35 on: August 23, 2013, 09:25:27 PM »

I also want it able to carry 100A, my inverter is 3.3kW but can deliver 4kW for short periods of time.  So at 48v that is at least 83.3A.  Over the years I have learned that a good clean, tight connection is best, that's why I'm being so fussy.
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camillitech
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« Reply #36 on: August 23, 2013, 09:30:26 PM »

I have a box full of those terminals but they dont fit!!  I also have pre-made ones too.  But my poles are 26mm way too fat for these  Cry

Then buy one of these http://www.theworkshopwarehouse.co.uk/ks-tools-battery-terminal-cleaning-tool.html and ream your posts down to fit the terminals. Or use Biff's original idea of the copper pipe formed around the post, it will carry 100amps no problem if done correctly.
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'Off grid' since 1985,  Proven 2.5kW, Proven 6kW direct heating, SI6.OH, 800ah Rolls, 4.75kW PV ,4xTS45, Lister HR2 12kW, , Powerspout pelton, Stream Engine turgo, 60 x Navitron toobs and a 1500lt store. Outback VFX3048 and 950ah forklifts for backup,
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