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Author Decent 12v 8a (constant) power/pack?
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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24th Nov 12 at 17:41   View User's Profile U2U Member Reply With Quote

Want to Bench test my xenons before I install on the car to save time taking headlamps off and dissembling and re assembling them.

I have a trickle charger than manages 5amps and barely lights the bulb. I have read it needs to be 8amps

Went to B&Q today and came home with a 2/8/12 "switchable" power pack, however it's an "intelligent" one do if it doesn't sense a battery connected it quite simply does nothing.

Most I have found are upwards of £90.

Anyone on CS Got a suggestion or bit of equipment they use?

Needs to ignit rebased H1 HIDs and 35w ballasts for a max of about 30mins. At this rate I could just buy a battery but this is something I can use afterwards.

Halp!
Jonny.N
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Registered: 10th Sep 08
Location: scotland
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24th Nov 12 at 17:48   View User's Profile U2U Member Reply With Quote

What about few bits of wire and a battery booster pack? Done it a few times with cd/dvd players etc. Works a treat
Gary
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Registered: 22nd Nov 06
Location: West Yorkshire
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24th Nov 12 at 17:49   View Garage View User's Profile U2U Member Reply With Quote

Your car battery?
Bonney
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Registered: 14th Nov 04
Location: St Helens
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24th Nov 12 at 17:51   View User's Profile U2U Member Reply With Quote

How about car battery attatched to said charger then wires feeding to said lights?
Jambo
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24th Nov 12 at 18:09   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Gary
Your car battery?


Cant put my car on a bench mate. Although I suppose if i had 15m jumper cables I could make a decent fire hazard/power my headlights
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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24th Nov 12 at 18:09   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jonny.N
What about few bits of wire and a battery booster pack? Done it a few times with cd/dvd players etc. Works a treat


Explain? Booster pack?
Jonny.N
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Registered: 10th Sep 08
Location: scotland
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24th Nov 12 at 21:46   View User's Profile U2U Member Reply With Quote

The small booster packs with jump leads. Some of them have lights or tyre inflator aswell. Handy to have incase ur battery goes flat. and u dont need another car and jump leads
dragon2309
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Registered: 1st Mar 09
Location: Strood, Kent
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24th Nov 12 at 22:02   View User's Profile U2U Member Reply With Quote

these things - http://www.ebay.co.uk/itm/12V-900A-HEAVY-DUTY-CAR-JUMP-STARTER-START-BOOSTER-CABLE-LEAD-BATTERY-BOOSTER-/290670077106?pt=UK_Recovery_Tools&hash=item43ad4964b2

has a 12Ah battery, so could dump 12A for up to an hour. Easily do 8A for some lights for a while.

[Edited on 24-11-2012 by dragon2309]
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
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24th Nov 12 at 22:07   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jonny.N
What about few bits of wire and a battery booster pack? Done it a few times with cd/dvd players etc. Works a treat

This is what I do too, handy to have for when you/a friend has a flat battery too.
Jonny.N
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Location: scotland
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24th Nov 12 at 23:09   View User's Profile U2U Member Reply With Quote

I use it to check cd/dvd players etc. Works a treat
Jambo
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25th Nov 12 at 10:12   View User's Profile U2U Member Reply With Quote

That's approximately 892 amps more than I need. Think the igniters would explode

Olsrey
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Registered: 13th Jan 07
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25th Nov 12 at 16:24   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jambo
That's approximately 892 amps more than I need. Think the igniters would explode


The lights will only take the current they want/need.
ed
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Registered: 10th Sep 03
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25th Nov 12 at 16:45   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jambo
quote:
Originally posted by Gary
Your car battery?


Cant put my car on a bench mate. Although I suppose if i had 15m jumper cables I could make a decent fire hazard/power my headlights


Jump leads and Coke cans
Jambo
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25th Nov 12 at 17:53   View User's Profile U2U Member Reply With Quote

Ed that is some classic MAN engineering right there
Mertin
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Registered: 12th Oct 05
Location: Scotland
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25th Nov 12 at 18:16   View User's Profile U2U Member Reply With Quote

Could just whip the battery out your car if its easy enough to get to?
Iv just bought one of the booster packs mentioned, got one from costco. Had to use it for my mates clio first day I bought it! I started a thread a few weeks ago in GC asking for reccomendations
Jambo
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25th Nov 12 at 22:58   View User's Profile U2U Member Reply With Quote

Right I think I have found a soloution after much head scratching.

Laptop power supply shetto modded and some croc clips.

Job done and won't cost £50
tom_simes
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Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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25th Nov 12 at 23:18   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Olsrey
quote:
Originally posted by Jambo
That's approximately 892 amps more than I need. Think the igniters would explode


The lights will only take the current they want/need.

This is the important point. Voltage is important, current less so, as the lights will draw what they need only.
dragon2309
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Registered: 1st Mar 09
Location: Strood, Kent
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25th Nov 12 at 23:20   View User's Profile U2U Member Reply With Quote

you have a laptop power supply that supplys 8A??? Most are only like 3-4A

Btw, you van get those jump start units in maplins for about £25. And yep, as that other guy said, amperage is only supplied as the device draws it, so it'll only supply 8A if you're lights draw 8A. It can supply *UPTO* 900A (all be it for a very short time period, and would likely break)
Jambo
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25th Nov 12 at 23:49   View User's Profile U2U Member Reply With Quote

They are rare but they exist. However Xbox power supply is plenty powerful.

Going to see if I have my old one kicking around the garage.
dragon2309
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Registered: 1st Mar 09
Location: Strood, Kent
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25th Nov 12 at 23:59   View User's Profile U2U Member Reply With Quote

pretty sure you can power a house with an xbox one, lol, they're beast
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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26th Nov 12 at 00:08   View User's Profile U2U Member Reply With Quote

Do you have any PC power supplies knocking about?


Basically solder all the 12v cables together and the ground/- cables and there you go, 12V source. These are very stable, I have had a few chargers running off one drawings around 20amps or so with no problems at all.

http://www.instructables.com/id/Convert-an-ATX-Power-Supply-Into-a-Regular-DC-Powe/
Jambo
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26th Nov 12 at 09:07   View User's Profile U2U Member Reply With Quote

Yeah im aware of the PC thing, but I dont have a spare and dont fancy taking a PC apart then soldering minute contacts. I dont have the skill for that.

I can manage chopping a plug off, twisting some wires together soldering and adding some connectors on the end and voila, I have a power pack!
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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26th Nov 12 at 16:53   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jambo
Yeah im aware of the PC thing, but I dont have a spare and dont fancy taking a PC apart then soldering minute contacts. I dont have the skill for that.

I can manage chopping a plug off, twisting some wires together soldering and adding some connectors on the end and voila, I have a power pack!


If you can get hold of a PC PSU, then you basically just do what you have described in your 2nd sentence

[Edited on 26-11-2012 by antnee]
Jambo
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26th Nov 12 at 19:13   View User's Profile U2U Member Reply With Quote

Link please
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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26th Nov 12 at 19:56   View User's Profile U2U Member Reply With Quote

Link for what? PSU?

 
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