Do you have to disconnect battery for HID bulb replacement
Discussion
I've been having issues with the ballast on my FFRR and have it sorted now but would rather not cause any electrical issues by disconnecting the battery again, the trouble is I've got one bulb which is 4300k and one at 6000k at the moment so want to make them both equal, if the car has been sitting for a while without the headlights being turned on should it be ok to replace the bulb without any issues?, or do I really need to have no power going to them, have heard conflicting things on this, some people saying it's fine others saying not.
Ideally, Yes. And UI would advise you to do so then open the door and turn on the lights even with the battery disconnected to "empty" the system of any residual charge. HID's are big voltage and you'd not want a shock.
However, just unplugging the lamp unit from the car and then being careful. No digging around with metal tools. Should be fine.
Be careful though. Don't force anything
However, just unplugging the lamp unit from the car and then being careful. No digging around with metal tools. Should be fine.
Be careful though. Don't force anything
corozin said:
Since the capacitor in a HID ballast typically stores 15,000 - 20,000 volts yes it is a good idea to disconnect before you start pulling the connectors with your fingers.
Why would disconnecting the battery discharge any capacitors though?Waiting ages since the light have last been switched on would help with that, but I can't really see why disconnecting the battery or not would make a lot of difference.
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