Series 3 Split Charge System

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saying that about chinese electrics, have you ever owned an italian bike?..............or a british car?...............come to think of it i would like to withdraw the last coment. chinese electrice are fantastic.
 
come to think of it the standard 16acr alternator has 2 parallel outputs to the batt in order to prevent "burnout" of the "quality" lucas wiring.
why not feed one output to each battery that would be free and still only a tad off the origional 20amp dynamo system on the series 2a. (i do beleive the alternator was an optional extra along with electric mirrors and windows)
 
come to think of it the standard 16acr alternator has 2 parallel outputs to the batt in order to prevent "burnout" of the "quality" lucas wiring.
why not feed one output to each battery that would be free and still only a tad off the origional 20amp dynamo system on the series 2a. (i do beleive the alternator was an optional extra along with electric mirrors and windows)

coz they double up the wire to cope with the current. splitting one each way means that either or both can be overloaded. not a good idea.
 
you cant find a decent 200 amp cont relay for £12, a s**t one is £12.50 + £1.50 postage, a half decent one is £50 and a good one is more like £100.

Not sure what you expect a £100 relay to do differently to a £12.50 + £1.50 one, but, my £12.50 + £1.50 one (which cost me £10 a few years ago) allows me to flick a switch on the dash and for my second battery to be charged from the alternator as i drive. I can't quite see what more i'd want it to do tbh.
(I prefer to have it on a switch than the ignition as i like to have control over the split charge system)

I'm about to upgrade to a 3 battery system so will be purchasing another cheap relay.

I'll buy quality stuff where it matters, e.g. tools but something as simple as a relay it doesn't seem worth it.
 
On principle, I do like the idea of using 40A relays tho. They are easily available if one goes down and are usually pluggable, rather than hard wired like the more powerful versions, thereby enabling you to unplug one if it goes short circuit.
 
On principle, I do like the idea of using 40A relays tho. They are easily available if one goes down and are usually pluggable, rather than hard wired like the more powerful versions, thereby enabling you to unplug one if it goes short circuit.

yep thats why i used them. you can buy them from a petrol station use a standard 30amp blade fuse with them and do all the wiring in a shallow box and fill it with resin using standard blade fittings making them pluggable.

more work to start with but easy to replace and available everywhere. not to mention cheaper all be it by only a couple of quid.

where i use them for the winch and split charge systems i can carry one spare relay that i can change "in the field" without any tools thus enabling a faulty system to work within 2 mins.
 
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