Dead battery after radio cig liter install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dads longhorn · 05-26-2012, 10:08 AM

I just had installed a new radio speaker, refurbished radio, and new cig liter from lmc and now the battery is dead. Battery drains overnight. The cig lighter has a little light bulb in it too that comes on when the lighter is taken out of the socket. After a quick jump the battery is fine. Any ideas what's up? I guess I'll take it back to the mechanic who installed everything to make him figure it out. Meantime I'll read the owners manual and service manual to see if any warnings on battery drain from cig liter. Any help is appreciated in advance. Thank you
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**Daddy Brim** · 05-26-2012, 10:14 AM

I wired the light on my cig lighter to the lights on the dash. The light on yours might be on all the time.

MrSchaeferPants · 05-26-2012, 10:55 AM

Ya I couldn't think of anything definitive. Either your cig light is on, you'd probably notice if the lighter itself was drawing power. The radio perhaps? You'd probably notice if that stayed on. It's a refurbished stock unit? So probably no memory wire, just the power wire. Guess you'd just have to bust out the multimeter and see what's drawing. Didn't leave your lights on while you were playing with with your new stuff did you? Esp if the cig light was wired into the dash lights and you were playing with it at night. Or the guy wired it straight to power, and it's always on, and you didn't notice it never turning off if it was daytime?

dads longhorn · 05-26-2012, 09:31 PM

Ttt
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dads longhorn · 05-29-2012, 09:32 AM

thanks guys. I hope to get it in this week. I'll let them know what you suggested.

dads longhorn · 06-05-2012, 01:19 PM

ok, got the truck back in to the shop and it was the tiny light inside the cig lighter from LMC that was on all the time and thus drained the battery. So, they rewired it to the lights on an open spot on the fuse panel. So the cig lighter works all the time, but the light only comes on when i turn on the lights. I'm fine w/ that. The original lighter didn't have a light (I don't think)? Also got "period correct" knobs on the radio and it looks better I'll post pic soon. Now, there just needs to be something on AM radio worth listening to. Not yet!

05-26-2012, 10:08 AM	#1
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 369	Dead battery after radio cig liter install I just had installed a new radio speaker, refurbished radio, and new cig liter from lmc and now the battery is dead. Battery drains overnight. The cig lighter has a little light bulb in it too that comes on when the lighter is taken out of the socket. After a quick jump the battery is fine. Any ideas what's up? I guess I'll take it back to the mechanic who installed everything to make him figure it out. Meantime I'll read the owners manual and service manual to see if any warnings on battery drain from cig liter. Any help is appreciated in advance. Thank you Posted via Mobile Device

05-26-2012, 10:14 AM	#2
Daddy Brim Senior Member Join Date: Feb 2011 Location: Clovis Ca. Posts: 632	Re: Dead battery after radio cig liter install I wired the light on my cig lighter to the lights on the dash. The light on yours might be on all the time. __________________ I'm sorry I called you stupid. I thought you knew already. 67 C-20 Custom Camper 68 Nova 396 it does wheelies 2005 Buick Century the one the wife drives 1989 Toyota Tercel to drive when I can't put gas in the first 2. Last edited by Daddy Brim; 05-26-2012 at 09:34 PM.

05-26-2012, 10:55 AM	#3
MrSchaeferPants Registered User Join Date: Feb 2012 Location: JBLM, WA Posts: 153	Re: Dead battery after radio cig liter install Ya I couldn't think of anything definitive. Either your cig light is on, you'd probably notice if the lighter itself was drawing power. The radio perhaps? You'd probably notice if that stayed on. It's a refurbished stock unit? So probably no memory wire, just the power wire. Guess you'd just have to bust out the multimeter and see what's drawing. Didn't leave your lights on while you were playing with with your new stuff did you? Esp if the cig light was wired into the dash lights and you were playing with it at night. Or the guy wired it straight to power, and it's always on, and you didn't notice it never turning off if it was daytime? __________________ 68 GMC C2500 - 305 V6 - 4spd

05-26-2012, 09:31 PM	#4
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 369	Re: Dead battery after radio cig liter install Ttt Posted via Mobile Device

05-29-2012, 09:32 AM	#5
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 369	Re: Dead battery after radio cig liter install thanks guys. I hope to get it in this week. I'll let them know what you suggested.

06-05-2012, 01:19 PM	#6
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 369	Re: Dead battery after radio cig liter install ok, got the truck back in to the shop and it was the tiny light inside the cig lighter from LMC that was on all the time and thus drained the battery. So, they rewired it to the lights on an open spot on the fuse panel. So the cig lighter works all the time, but the light only comes on when i turn on the lights. I'm fine w/ that. The original lighter didn't have a light (I don't think)? Also got "period correct" knobs on the radio and it looks better I'll post pic soon. Now, there just needs to be something on AM radio worth listening to. Not yet!



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