11-22-2020, 11:16 AM | #1 |
HELP ! Battery drain.
I have a 2017 ZL1 with a battery drain .Leave it for a week and (usually) completely discharged. Have started on boost pack and driven it and battery has overheated really badly twice. Have new battery again and don't want it to happen again. Have checked for drain with ammeter and looks normal whilst I have viewed it. Only electrical mod is lambo rear lights . Any ideas from previous experience guys ?
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11-22-2020, 11:29 AM | #2 |
Drives: 2023 Chevrolet Camaro 2SS 1LE Join Date: Jan 2020
Location: Pennsylvania
Posts: 1,219
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Start with the lights. I have seen nothing but problems like this on these forums with aftermarket lights.
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11-22-2020, 01:49 PM | #3 |
Drives: 2018 Camaro ZL1 Join Date: Aug 2018
Location: Georgia
Posts: 1,410
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Did it start after the rear light change? If so, that's where you need to start looking. Could be a grounding issue causing a parasitic drain.
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11-22-2020, 01:55 PM | #4 |
I can't remember if it did or didn't. But when I look the drain is 20 milliamps approx. Unless the system wakes up periodically and it drains then. I could unplug the lights and leave it and see if that changes anything .
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11-22-2020, 05:24 PM | #5 |
2019 ZL1 1LE MY GOON
Drives: 1980 Z28 Big Red. Join Date: Dec 2018
Location: Stoney Creek
Posts: 2,061
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If it’s the original battery it’s likely toasted.
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11-23-2020, 05:53 AM | #6 |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,043
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11-23-2020, 01:31 PM | #7 |
I have a fresh battery,last one was toasted, literally ! will disconnect the rear lights and play the waiting game.
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11-23-2020, 11:09 PM | #8 |
Drives: 2018 ZL1 Join Date: Jul 2017
Location: San Jose, Ca
Posts: 135
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Disconnect the lights and see if the drain goes down to 3 or 4 ma.
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Mark E.
2018 ZL1 NGM A10 87 Grand National. Modified Hot Rod for sale *SOLD* 87 Grand National. Stock 65 Olds Vista Cruiser wagon Grand National motor/tran 66 Bronco Rockbuggy 2006 Dodge 2500 4x4 Cummins 6 speed |
11-24-2020, 01:53 PM | #9 |
I have disconnected the lights and will leave it for a week or so, see what happens, thanks for the input so far guys.
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12-01-2020, 02:06 PM | #10 |
Looks like disconnecting has done the trick, so am now wiring the lights via trailer 7 way bypass relays . The manufacturer admitted they have had issues as well.
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12-01-2020, 05:12 PM | #11 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 12,024
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Aftermarket electrical components are always guilty until proven innocent (by thorough testing in all power states with a multimeter)
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12-01-2020, 09:16 PM | #12 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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if the car can't get into "sleep mode", the battery will drain pretty quickly
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12-01-2020, 10:43 PM | #13 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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FYI- If the power window button lights up for 3 seconds every 30 seconds, with doors unlocked its a problem with the taillights.
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12-02-2020, 01:21 PM | #14 |
All great info guys thanks.
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