12v only - Page 3

ssteve · 31-03-2009, 21:06

Quote:

Originally Posted by Terranosaurus

But as soon as you turn the ignition on there is voltage at the alternator. Alternators are not self starting they require exciting. The good news is though that as you crank the engine over the voltage drop should be sufficient to drop the relay so you won't pull big currents under cranking - that said I have found that if I flatten the primary batery on my van that it blows the split charge fuse when I try to start it - presumably it is pulling from the secondary battery.

On the Terrano I have 2 batteries but they are linked using a big relay 180A so that I can run high currents in either direction but that is a totally different set up. The installation is temporary at the moment I am awaiting the trial model of a new high current split charge relay that I will be testing.

afaik (most) alternators are self exciting,dynamo's are not (rb 340's etc)
ssteve

zippy656 · 31-03-2009, 21:13

Quote:

Originally Posted by ssteve

the batterys will only take the charge they need irrespective of capacity
ssteve

Quote:

Originally Posted by ssteve

meaning?????
ssteve

meaning this mate..

Damian Strudley · 31-03-2009, 21:25

If you want any cheap solar gear or camping bits Maplin electronics have got a sale on at present some good bits quite cheap

zippy656 · 31-03-2009, 21:35

Quote:

Originally Posted by Damian Strudley

If you want any cheap solar gear or camping bits Maplin electronics have got a sale on at present some good bits quite cheap

wonder if they get LED lights i want cheaper at the mo..
off to look

(RIP) PLANK · 31-03-2009, 22:42

i dont know if its just me but i find led lights not suitable to read a book by, they dont seem to be a good quailty of light, what does everyone aelse think?

willow · 31-03-2009, 22:52

Quote:

Originally Posted by PLANK

i dont know if its just me but i find led lights not suitable to read a book by, they dont seem to be a good quailty of light, what does everyone aelse think?

Too dim

Deleted account DD · 31-03-2009, 22:57

TBH I cant see the point in trying to read by them

Good bright white light.....lets start a campaign

tezzer · 31-03-2009, 23:04

i reckon 110amp battery + 240volt inverter + decent battery charger~~connect inverter to battery, plug in battery charger, bingo, battery charges itself.

tezzer

Deleted account DD · 31-03-2009, 23:06

almost but not quite like perpetual motion

(RIP) PLANK · 01-04-2009, 12:05

Willow, and Dave d I agree the led lights are not good, they dont seem yellow like a dim normal bulb though and the 'whitness' of their light tricks you into thnking they are better than they are, but I wouldnt try and use one as a reading light again.

People are selling led replacments for the reading light bulbs in caravans and I dont think i would bother trying them at all!

I like Tezzers idea, and a benefit would be, -you could keep your hands warm on the invertor while the battery charged istself, brilliant, I am convinced, I wil have to put an invertor on my next letter to Santa as i believe in him too

(RIP) PLANK · 13-04-2009, 19:33

I have just finished 10 nights in our caravan with a couple of hours each evening watching portable dvd player powered from the 12v system fomr the leisure battery, with no charging the LED indicatoor on the panel was still on green this morning!

I have no idea of the amps of the battery as my daughter bought it in france about 18 months ago and i have not really looked at it to find out, but i wouldn't thingk it is anyhting special.

Deleted account DD · 13-04-2009, 19:37

Good as

I am still looking at the split charge system, I actually have a split charge relay and suitable cable + battery clamps in the shed ! all I need is a 2nd leisure battery.

However my missus has come up with one point that kicks all of this 12v stuff into touch...................

How will her hair-drier and straighteners work

go on then ...........

tezzer · 13-04-2009, 19:52

buy a 240 inverter.

tezzer

Deleted account DD · 13-04-2009, 19:55

Hmmm........she's been spoilt, a terrano would make an effective 24v generator but I'm not convinced its the answer

Jocky · 13-04-2009, 20:17

Quote:

Originally Posted by tezzer

buy a 240 inverter.

tezzer

need an expensive one to run the straightners

Told her just to let here hair go back to its natural state

reminded her she did not have straight hair when I met her

didn't work BTW

31-03-2009, 21:25	#33
Damian Strudley Member Join Date: Mar 2009 Location: Kent is my main base agian still work in Yorks Vehicle: Maverick Chasseur lwb Posts: 55	If you want any cheap solar gear or camping bits Maplin electronics have got a sale on at present some good bits quite cheap

31-03-2009, 22:42	#35
(RIP) PLANK Senior Member Join Date: Mar 2006 Location: Central England, in the Heart of the Black Country Vehicle: T2 2004 TDI SE LWB Posts: 7,740	i dont know if its just me but i find led lights not suitable to read a book by, they dont seem to be a good quailty of light, what does everyone aelse think?

31-03-2009, 22:57	#37
Deleted account DD Senior Member Join Date: Sep 2008 Posts: 4,705	TBH I cant see the point in trying to read by them Good bright white light.....lets start a campaign

31-03-2009, 23:04	#38
tezzer Senior Member Join Date: Nov 2008 Location: basildon essex Vehicle: transit camper van 1987 Posts: 2,829	i reckon 110amp battery + 240volt inverter + decent battery charger~~connect inverter to battery, plug in battery charger, bingo, battery charges itself. tezzer

31-03-2009, 23:06	#39
Deleted account DD Senior Member Join Date: Sep 2008 Posts: 4,705	almost but not quite like perpetual motion

01-04-2009, 12:05	#40
(RIP) PLANK Senior Member Join Date: Mar 2006 Location: Central England, in the Heart of the Black Country Vehicle: T2 2004 TDI SE LWB Posts: 7,740	Willow, and Dave d I agree the led lights are not good, they dont seem yellow like a dim normal bulb though and the 'whitness' of their light tricks you into thnking they are better than they are, but I wouldnt try and use one as a reading light again. People are selling led replacments for the reading light bulbs in caravans and I dont think i would bother trying them at all! I like Tezzers idea, and a benefit would be, -you could keep your hands warm on the invertor while the battery charged istself, brilliant, I am convinced, I wil have to put an invertor on my next letter to Santa as i believe in him too

13-04-2009, 19:33	#41
(RIP) PLANK Senior Member Join Date: Mar 2006 Location: Central England, in the Heart of the Black Country Vehicle: T2 2004 TDI SE LWB Posts: 7,740	I have just finished 10 nights in our caravan with a couple of hours each evening watching portable dvd player powered from the 12v system fomr the leisure battery, with no charging the LED indicatoor on the panel was still on green this morning! I have no idea of the amps of the battery as my daughter bought it in france about 18 months ago and i have not really looked at it to find out, but i wouldn't thingk it is anyhting special.

13-04-2009, 19:37	#42
Deleted account DD Senior Member Join Date: Sep 2008 Posts: 4,705	Good as I am still looking at the split charge system, I actually have a split charge relay and suitable cable + battery clamps in the shed ! all I need is a 2nd leisure battery. However my missus has come up with one point that kicks all of this 12v stuff into touch................... How will her hair-drier and straighteners work go on then ...........

13-04-2009, 19:52	#43
tezzer Senior Member Join Date: Nov 2008 Location: basildon essex Vehicle: transit camper van 1987 Posts: 2,829	buy a 240 inverter. tezzer

13-04-2009, 19:55	#44
Deleted account DD Senior Member Join Date: Sep 2008 Posts: 4,705	Hmmm........she's been spoilt, a terrano would make an effective 24v generator but I'm not convinced its the answer