Charging battery via cigarette lighter socket
Charging battery via cigarette lighter socket
Author
Discussion

STEVECHIM

Original Poster:

99 posts

243 months

Sunday 3rd December 2006
quotequote all
Have had my first TVR for 2 months now (Chimaera 500) Still getting used to the amazing performance.

I would like to know how to wire a trickle-charger to a cigarette lighter socket as she will be used only occassionaly in winter:- I assume the car is negatively earthed. Does the centre pin on the lighter socket go to +ve, and the casing of the connector to -ve?

If anybody can advise me then Thanks.





Red V8

873 posts

257 months

Sunday 3rd December 2006
quotequote all
Buy yourself one of these... simply plug it in and forget about it.

www.accumate.co.uk/

Cider Andy

1,889 posts

255 months

Sunday 3rd December 2006
quotequote all
The car does have a negative earth and the centre of the lighter socket should be at +12V permanently, BUT it's worth checking it with a meter! There have been a few reports in the past about cars that do not have a permanent +12V to the socket.

The Accumate charger does work very well if the socket is wired 'normally', as above.

biggiles

2,170 posts

255 months

Sunday 3rd December 2006
quotequote all
You can buy a basic multimeter for as little as 5 pounds these days. They're very useful things and especially useful around TVRs and their batteries- I'd advise buying one asap.

Make sure it's digital- the analogue ones are not so useful.

Moody Blue

70 posts

279 months

Monday 4th December 2006
quotequote all
Wanted to use a trickle charger connected via ciggy lighter, but had a loose connetion, attempted to sort out but not able to, (non smoker either so not high priority).

Also Car garaged and the drivers door is away from the wall for the power connection, garage used for access so did not want cables draped over the walkway, or over the Chim's paint work.

Went to Halford's and got their maintenance charger for £20, small unit came with fly leads with push connectors (to ensure correct polarity) & lead with croc clips for direct to battery terminals if required. Connected fly lead permanently to battery and push it behind carpet when not connected to charger.

No more flat battery or messing about in the footwell.

That Daddy

19,456 posts

251 months

Monday 4th December 2006
quotequote all
yes cigarette lighter should be wired, center +live,outer -earth.i use the lighter method with an optimate charger no problems.

DavHughes

1,261 posts

257 months

Monday 4th December 2006
quotequote all
That Daddy said:
yes cigarette lighter should be wired, center +live,outer -earth.i use the lighter method with an optimate charger no problems.


What happens if you get it wrong?

Dav

Big Al.

69,336 posts

288 months

Monday 4th December 2006
quotequote all
DavHughes said:
That Daddy said:
yes cigarette lighter should be wired, center +live,outer -earth.i use the lighter method with an optimate charger no problems.


What happens if you get it wrong?

Dav


Blown fuse?

STEVECHIM

Original Poster:

99 posts

243 months

Monday 4th December 2006
quotequote all
Thanks for all this. Will buy a cheap trickle charger and solder on an adapter and see how it goes.

DavHughes

1,261 posts

257 months

Monday 4th December 2006
quotequote all
STEVECHIM said:
Thanks for all this. Will buy a cheap trickle charger and solder on an adapter and see how it goes.


Be interested to hear how you get on.

Cheers.

Dav

davidlscott

1,048 posts

254 months

Tuesday 5th December 2006
quotequote all
Cheap trickle chargers are NOT the same as an Accumate.
The Accumate constantly monitors the battery and keeps it in the right condition.
A basic charger just does that and I don't think is designed for permanent use.

You can get extension leads for the Accumate to plug into the lighter socket or have the battery wired in to a connector. Mine is kept under a car port and is plugged in from October to March. I have them on the Tiv, the bike and even the mower.

FunkyGibbon

3,863 posts

294 months

Tuesday 5th December 2006
quotequote all
DavHughes said:
That Daddy said:
yes cigarette lighter should be wired, center +live,outer -earth.i use the lighter method with an optimate charger no problems.


What happens if you get it wrong?

Dav

If you use the accumate nothing at all - as it auto senses the polarity IIRC