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Old 02-14-2019, 02:39 PM   #1
WTypeRogerX
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Question HIDs Flickering, Out, Then Battery Died

I had a HID bulb (passenger side) go bad last week - it turned purple/pink lighting up the road with orange light. That's happened before and I replaced it with the same HID kit as the original, VVME. However, it seems VVME is no longer around after more than 10 years, so I bought an Amazon Prime HID bulb replacement set and replaced the bad bulb last night. When I first plugged it in, it didn't light up, so I reversed the 2 wires with flat tips (the rest are modular so there is no confusion which plugs where) and it lit up fine. Don't know why their color codings were reversed (originally I tried connecting red with red and black with black, but the tip widths didn't line up as well and so I had to go red to black and black to red for it to light up). So then I inserted the bulb into the housing and closed everything up and proceeded to level the beam heights - I must have keyed on and turned the lights on and off (including high beams) a dozen times for a minute or 2 each time. After a handful of turning ons and offs, my driver headlight started to flicker briefly, then it really started flickering and went out after a few more ons/offs. I waited a bit before trying again, and it lit up again, but after a few more on/offs, it went out completely. Then, while leveling the high beams (no HIDs), and the driver bulb out, the new passenger bulb started flickering like crazy and went out. I went online to Google flickering HIDs then went to bed leaving the car door open and dome light and rear hatch light on. When I got up 4 hours later and turned on the headlights again, the HID bulbs were still out and the high beams dim. After turning them on/off a couple of times, they pretty much went out too, and there's this clicking noise and my security (alarm) light on the dash is lit and the battery pretty much dead. Are the flickering bulbs just due to a low/bad battery or some other electrical problem? I can't imagine the dome and hatch light draining the battery completely as I've left both map lights on overnight in the past without killing the battery. The battery is about 3.5 years old.
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Old 02-14-2019, 05:42 PM   #2
Mulder
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You killed your battery messing with the HID's then leaving the other lights on. Every time the HID's fire they draw a higher current at startup so if you did that a bunch of times without starting the car it drained the battery.
I'd suggest pulling the battery and putting it on a good external charger, then testing it to see if it's ok or shot.
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Old 02-15-2019, 08:27 AM   #3
Charlie-III
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Agreed, you drained the battery. Just because you "can" leave lights on with the engine off for extended periods, you shouldn't do it. It is very hard on the battery.

So, yes, turn lights off and charge the battery.
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Old 02-15-2019, 02:42 PM   #4
WTypeRogerX
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Actually the battery was almost 5 years old (4 years, 10 months). I charged it for 1/2 hour (without removing it) when I got home and the HID came on OK and the engine started. I went to the local auto shop and they tested and although it had a full charge, the tester tool indicated it was bad, so I bought a new battery and installed it.

I had been turning the lights off after a few seconds up to a minute or so rather than leaving them on for an extended time while leveling them so as not to drain the battery, but didn't realize that they draw higher current at startup.
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Old 02-16-2019, 12:14 PM   #5
satrya
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Quote:
Originally Posted by WTypeRogerX View Post
..., but didn't realize that they draw higher current at startup.
Yes, the HID ballast needs to start at a very high voltage to get the necessary potential to initiate the HID arc inside the HID bulb. Warm bulbs need an even higher starting voltage, so restriking the bulb several times can be more demanding to the battery than restarting several times spaced long enough apart to cool the HID bulb. The voltage (V), current (I), and power (P) draw is illustrated in this Figure 2 from https://www.edn.com/design/power-man...y-fundamentals ;


Note that the power takes a while to build up, which also means that the bulb's intensity also takes a while to reach its max operating level.
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Old 02-17-2019, 07:31 AM   #6
CRAZYHAWK
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This is true for the deautokey H11rc 5000k 35 watt kit. I did not test any other kit.

https://www.subaruxvforum.com/forum/...king-myth.html
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