car batt flat how long to charge?????

[SYM35]

no sure if this is the right bit but ohh well it will get moved if it isnt......:whistling
anyway my car battery has gone flat how long should i charge it before i reconnect it by the way this is in a vr commo

 

[Genesis]

Depends on the battery and the charger...

I find the best way to charge a battery is in a running car. Hook it up, jump start the car and go for a long drive.

 

[markovr]

They used to rate a battery in amp hours and 40 was the common number of batterys then so if the battery is dead flat you had to charge the battery for 40 hours at 1 amp and 20 hours at 2 and so on.

 

[markovr]

They used to rate a battery in amp hours and 40 was the common number of batterys then so if the battery is dead flat you had to charge the battery for 40 hours at 1 amp and 20 hours at 2 and so on.