How to recharge a flat battery?

[jonbuoy]

Where have i indicated you mentioned polarity. And when a battery is positively earthed, the red lead goes to the frame, so it is not all about colour.

You think he drives an Austin 7?? As long as the two vehicles aren´t touching it doesn´t matter if the car/bike he is jumping from or to is positive or negative earth as long as the positive goes to positive and negative goes to negative on the battery. 12V is 12V, unless its a 6v Willys Jeep or something. But yeah better to charge than jump start a car or bike with fuel injection.

[jellywrestler]

Where have i indicated you mentioned polarity. And when a battery is positively earthed, the red lead goes to the frame, so it is not all about colour.

They don't paint all the frames and chassis red when it's a positive earth I'm sure so it still means you have to work from the battery for polarity as they don't often put labels on vehicles these days either.

[jellywrestler]

2 disconnect the battery. Earth lead first (negative or minus side) , then the positive (positive is the one with the plus next to it, should be coded red)

there is absolutely no need to disconnect the second terminal, once one is disconnected there is a break in the 'circuit' and all is safe. This is why birds can sit on one power line without getting a shock...
just disconnect the earth will be fine rest is good advice though

[Reckless]

there is absolutely no need to disconnect the second terminal, once one is disconnected there is a break in the 'circuit' and all is safe. This is why birds can sit on one power line without getting a shock...
just disconnect the earth will be fine rest is good advice though

ah yes your quite right mr jelly I knew you'd spot something

I was automatically removing it for charging in the bench as I would normally do

Mind you?? I always remove and clean both terminals as part of normal charging procedure.

anyway all good

[Padmei]

Hey Shanks
I think after that time it'll be toast. Try it with a battery charger but i wouldn't hold my breath. (figuratively for the anal types)

[shanks]

Hey guys,

Thanks a lot for taking the time to give me procedures and suggestions!
The battery is finely working after charging it up with trickle charger from none other than our GiJoe!

Thanks again!

[Premature Accelerato]

So what about trickle chargers. How do these work? Can they be connected to your battery while it is still connected? or do you have to take one or both of the leads off. Like most late model bikes, getting the battery in and out is a pain in the arse so to be able to charge it in situ would be great. Are they worth the money or are they just a gimmick?

[shanks]

I had to take my battery out to and then connect it to the trickle charger. The charger runs on mains so they are not like the jump start ones that you can use when you're car breaks down in the middle of nowehere. But they are really handy when you havent used your bike for a while

[Coldrider]

I had to take my battery out to and then connect it to the trickle charger. The charger runs on mains so they are not like the jump start ones that you can use when you're car breaks down in the middle of nowehere. But they are really handy when you havent used your bike for a while

My understanding is ( my out when it all goes wrong), is that the so called 'battery conditoners' can be connected to your battery while your battery is connected. Provided your motorcycyle is reletavely modern (i think this means post 1975).