Dead battery 18 ZL1LE

Teneck83 · 07-14-2020, 02:26 PM

When not in use, I keep it on a maintainer. If the car sits without maintainer for a week or longer the battery is dead. Replaced it with an optima yellow top yesterday. Are dead batteries common ?

kropscamaro16 · 07-14-2020, 02:57 PM

mine is a 2016 ss and mine died last spring so less than 3 years

Teneck83 · 07-14-2020, 03:35 PM

I tested it at autozone and they stated it was head. Yet at home shows 12.7 volts. Is there more to the battery?

Vigilante375 · 07-14-2020, 05:25 PM

Mine sits for 2 weeks or more at a time before I drive it. Never had any issues with the battery. Though I do drive it every day for about 2 weeks before letting it sit for another 2 weeks.

2018 with 17k miles.

How much do you drive it once you do get to drive it? I would think a good trickle charger would keep the battery maintained.

supersportss · 07-14-2020, 05:52 PM

It's not volts that starts a car, it's amperage, you can have a battery with 12.7 volts but wont start the car due to no/low amperage. Test machines put a draw on the battery for amp draw.

Mark R · 07-14-2020, 05:58 PM

Quote:

Originally Posted by Teneck83

I tested it at autozone and they stated it was head. Yet at home shows 12.7 volts. Is there more to the battery?

Bad batteries can show good voltage just sitting, but under load they fail to deliver the juice. A good trickle charger / maintainer can keep a battery alive for many years. Mine is plugged in every time I park the car, because I only drive it a few times a month.

Schlok · 07-15-2020, 10:59 AM

Lead acid batteries want to live at a high state of charge, 13.4V or so and you’ll be set. Get a good maintainer a leave it connected when not driving. There are some fairly decent “ battery testers” on Amazon that are “same same” as the Midtronics EXP-1000. That’s a ~2k tool that kicks ass but the $50 Amazon one will do a CCA test and let you know “ good or bad” battery. They do a quick pulse to see if it can deliver the 600 or so CCA rating. I’ve tested the Amazon tool against the Midtronics and the results are the “same” and the numbers close enough.

ZX-10R · 07-15-2020, 11:17 AM

https://www.amazon.com/OptiMATE-Ampm.../dp/B003UANXCE

The best auto charger on the market

These cars eat batteries. Turning over a 6.2L takes some juice

PROMETHEUS · 07-15-2020, 11:35 AM

Mine sits on a charger anytime it is in the garage. Only takes a minute to take it off and the hood being open is a "good" remainder that it is on there, LOL!

Teneck83 · 07-15-2020, 12:39 PM

All the replies are greatly appreciated.

Yessa · 07-15-2020, 08:34 PM

Quote:

Originally Posted by ZX-10R

https://www.amazon.com/OptiMATE-Ampm.../dp/B003UANXCE

The best auto charger on the market.

Yep, that is a good one!

DFW_Muscle · 07-16-2020, 02:54 PM

Quote:

Originally Posted by Teneck83

I tested it at autozone and they stated it was head. Yet at home shows 12.7 volts. Is there more to the battery?

Right, however, just because it reads 12.7V with no load doesn't mean it's a good battery. One or more cells could have failed inside it, not allowing it to put out the amperage (CCA rating) it needs to work properly. Parts stores will use a tool that load tests it, which can determine the battery health. I am sure that's what they did.

Unfortunately, ACDelco batteries failing within a few years is certainly not uncommon.

avalonandl · 07-17-2020, 07:38 AM

Get a Batteryminder tender they have a desulfurator mode and will often bring a battery back. Brought mine from 60 % to 90 %.

ZX-10R · 07-17-2020, 09:12 AM

Quote:

Originally Posted by avalonandl

Get a Batteryminder tender they have a desulfurator mode and will often bring a battery back. Brought mine from 60 % to 90 %.

Optimate does that and it's better quality. I've tried them all

07-14-2020, 02:26 PM	#1
Teneck83 Drives: 2018 SS 1LE Join Date: Oct 2017 Location: North Jersey Posts: 117	Dead battery 18 ZL1LE When not in use, I keep it on a maintainer. If the car sits without maintainer for a week or longer the battery is dead. Replaced it with an optima yellow top yesterday. Are dead batteries common ? __________________ 2018 ZL1 1LE 1966 Corvette 427/425 vert 1969 Corvette 350/350

07-14-2020, 02:57 PM	#2
kropscamaro16 Drives: 2016 1ss camaro Join Date: Feb 2016 Location: 909 Posts: 9,813	mine is a 2016 ss and mine died last spring so less than 3 years __________________ 16 1SS NIGHTFALL GRAY METALLIC WITH NPP #BECAUSERACECAR #SAVETHEMANUALS

07-14-2020, 03:35 PM	#3
Teneck83 Drives: 2018 SS 1LE Join Date: Oct 2017 Location: North Jersey Posts: 117	I tested it at autozone and they stated it was head. Yet at home shows 12.7 volts. Is there more to the battery? __________________ 2018 ZL1 1LE 1966 Corvette 427/425 vert 1969 Corvette 350/350

07-15-2020, 12:39 PM	#10
Teneck83 Drives: 2018 SS 1LE Join Date: Oct 2017 Location: North Jersey Posts: 117	All the replies are greatly appreciated. __________________ 2018 ZL1 1LE 1966 Corvette 427/425 vert 1969 Corvette 350/350

07-17-2020, 07:38 AM	#13
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	Get a Batteryminder tender they have a desulfurator mode and will often bring a battery back. Brought mine from 60 % to 90 %. __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

07-14-2020, 05:25 PM	#4
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,368	Mine sits for 2 weeks or more at a time before I drive it. Never had any issues with the battery. Though I do drive it every day for about 2 weeks before letting it sit for another 2 weeks. 2018 with 17k miles. How much do you drive it once you do get to drive it? I would think a good trickle charger would keep the battery maintained.

07-14-2020, 05:52 PM	#5
supersportss Drives: 2019 SS Join Date: Apr 2020 Location: North Texas Posts: 259	It's not volts that starts a car, it's amperage, you can have a battery with 12.7 volts but wont start the car due to no/low amperage. Test machines put a draw on the battery for amp draw.

07-15-2020, 10:59 AM	#7
Schlok Drives: 2015 Z/28 #397 2022 ZL1 #1799 Join Date: Jul 2009 Location: DC Posts: 521	Lead acid batteries want to live at a high state of charge, 13.4V or so and you’ll be set. Get a good maintainer a leave it connected when not driving. There are some fairly decent “ battery testers” on Amazon that are “same same” as the Midtronics EXP-1000. That’s a ~2k tool that kicks ass but the $50 Amazon one will do a CCA test and let you know “ good or bad” battery. They do a quick pulse to see if it can deliver the 600 or so CCA rating. I’ve tested the Amazon tool against the Midtronics and the results are the “same” and the numbers close enough.

07-15-2020, 11:17 AM	#8
ZX-10R Drives: 2019 ZL1 Riverside Join Date: Apr 2020 Location: Charlotte, NC Posts: 1,138	https://www.amazon.com/OptiMATE-Ampm.../dp/B003UANXCE The best auto charger on the market These cars eat batteries. Turning over a 6.2L takes some juice

07-15-2020, 11:35 AM	#9
PROMETHEUS Drives: 2019 ZL-1, Shadow Gray, Sold Join Date: Jan 2019 Location: Fredericksburg, VA Posts: 1,390	Mine sits on a charger anytime it is in the garage. Only takes a minute to take it off and the hood being open is a "good" remainder that it is on there, LOL!

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