Ok all electronic guru's

has any1 ever made a trickle charger for there car b4 using an old 12v adaptor there cant b that much involved in it can there?

can it be done simply?

Cheers Mark

 

whats the point? there cheap enough to buy

 

if you can get the parts for nowt then build it yourself , may give you a tenner more cash to spend on the motor

 

so is this a yes thet are easy 2 build etc????

 

They only cost Ł15. So I think its a dont bother

 

any old 12v transformer with two crocodile clips
current not important as constant voltage will keep it topped up

 

cheers cozzy abuser thats wot i was lookin for.

so wot exactly do i need? a 12v dc transformer and croc clips yeh any other circuit 2 make it charge or sumthing as will a 12v dc transformer do or do i need a slightly higher voltage 1?

Many thanks

 

abuot 15 quid

 

 

i think i better ename this post FAO cossy abuser as he seems 2 b about the most helpful.

Y spend 15 quid i have all the bits here?

 

Ull want to take the battery upto about 14.4v then drop off to a 13.7 float, so ull need more than a transformer!

 

Dont get me wrong mate - 10 / 10 for ambition etc but i can just imagine you getting it wrong & having to fork out Ł50 for a new battery

 

i doubt it mate

 

you only need 14+volts if you are charging from flat, 12volts will keep a battery topped up enough to start it no probs,
Just strip off the end to leave two bare wires, connect the clips and check the polarity with a meter, and job done. Old phone charger, old games charger etc
Why pay 15 pounds when you have the bits.

 

Cheers Cossy Abuser

Wish every1 was as helpful as u

 

If you are building your own how about making it so it conditions the battery too. Really useful if the car is standing because it will keep topping up the battery and discharging it to keep it healthy. I don't know the electronics behind it but it's just a thought.

 

Under charging the battery will cause sulphation of the plates and premature failure.

Works out cheaper to buy a charger than a battery every other year.

 

my mate tried this once............................................th e fire brigade put the garage out intime to save the rest of the car but the front end was fooked

 

was thinking just the same rsnissan!!

its an expensive toy you risking!!

 

LOL very unlucky there then

 

My Dad has one on his RS Focus, I have one on my Concours 3 Door

They are covered for fire and theft anyway

 

these are lead acid batteries, not nicads so they don't suffer from memory problems, technology has moved on somewhat from a few years ago, the only reason we use them is so the alarm has a power source, the cars get started every 2 weeks anyway so that will recondition the batteries by dropping them to around 9volts on starting and back up to 14v when running

 

Im in the unfortunate posistion of seeing thousands of batteries a week and trust me this is not a good idea. Battery (lead acid) technology has made fuck all progession really.
Think halfords do a three year warrenty so try on one of them if ya must