Woke to a dead battery

rww · 06-12-2016, 11:26 AM

wife rolled up windows last night....left the car in the "on" position. came out this am, car was dead, zero response w/both fobs. hooked a bat charger and after 1 hr started fine, pulled into garage. bat won't take a charge at 2 amps or 12 prior to, and following start for 3 hrs now....12.52 V at the terminals....its a 13 w/15k....question could this type of drain "hurt" this battery or did I just get lucky and have a weak bat

kenchan · 06-12-2016, 11:31 AM

deep cycling a regular acid battery usually takes away about 20-30% of its life from my experience. you should keep it charged until it floats.

if u dont drive the car much during the week, definitely keep it hooked up to a battery tender during the week.

SouthArk370Z · 06-12-2016, 12:29 PM

You hurt it. Not sure how accurate kenchan's 20-30% is, but it sounds about right.

IIRC, the Z is supposed to turn itself off after a period of no input. If that is so, your battery is probably weak to start with.

Fuzzzy · 06-12-2016, 12:59 PM

Thread was a real disappointment after reading the title.

Good luck with your battery.

Disclaimer: apparently no actual bats were killed in the making of this thread.

barncobob · 06-12-2016, 01:05 PM

batteries are cheap, just replace and no guessing

onzedge · 06-12-2016, 01:17 PM

Quote:

Originally Posted by kenchan

deep cycling a regular acid battery usually takes away about 20-30% of its life from my experience. you should keep it charged until it floats.

if u dont drive the car much during the week, definitely keep it hooked up to a battery tender during the week.

Trips · 06-12-2016, 01:54 PM

Quote:

Originally Posted by Fuzzzy

Thread was a real disappointment after reading the title.

Good luck with your battery.

Disclaimer: apparently no actual bats were killed in the making of this thread.

edited tilte as I too was disappointed

/Angelo350Z/ · 06-12-2016, 01:59 PM

Have you tried pulse charging OP?

rww · 06-12-2016, 03:26 PM

thanks to all who replied, not sure about pulse charging to deal with sulfides, the battery is out, I'm oscillating between 2 and 10 amps every hr, seems to be taking a charge, the meter is acting a little strange on the charger, its the wife's dd so I'm in agreement with barncobob, I will let it sit for a couple of days and see how it reacts to charging, and if there are any doubts, just replace it.

sorry for the disappointing shortened title, as one can see I post/blog very little, had the car a yr, visiting the site several times a wk, before joining....I could tell you that my wife is a little hottie who made me go in the garage and remove a bat last wk before she would back the z out in her mini skirt that drives me batsh#$ crazy opening the door for a new title...."batsh%^ crazy with a dead bat and battery in the same wk"
but then I'm sure you'd all want pics of the bat.......

SouthArk370Z · 06-12-2016, 03:30 PM

Forget pics of the bat. We want to see the hottie in a mini.

06-12-2016, 11:26 AM	#1 (permalink)
rww Base Member Join Date: Jul 2015 Location: sioux city ia Posts: 8 Drives: 2013 370z Rep Power: 9	Woke to a dead battery wife rolled up windows last night....left the car in the "on" position. came out this am, car was dead, zero response w/both fobs. hooked a bat charger and after 1 hr started fine, pulled into garage. bat won't take a charge at 2 amps or 12 prior to, and following start for 3 hrs now....12.52 V at the terminals....its a 13 w/15k....question could this type of drain "hurt" this battery or did I just get lucky and have a weak bat

06-12-2016, 11:31 AM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	deep cycling a regular acid battery usually takes away about 20-30% of its life from my experience. you should keep it charged until it floats. if u dont drive the car much during the week, definitely keep it hooked up to a battery tender during the week. onzedge and SouthArk370Z like this.

06-12-2016, 12:29 PM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	You hurt it. Not sure how accurate kenchan's 20-30% is, but it sounds about right. IIRC, the Z is supposed to turn itself off after a period of no input. If that is so, your battery is probably weak to start with. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-12-2016, 12:59 PM	#4 (permalink)
Fuzzzy Track Member Join Date: Mar 2014 Location: MS Posts: 875 Drives: 2014 370Z 7AT MR Rep Power: 21860	Thread was a real disappointment after reading the title. Good luck with your battery. Disclaimer: apparently no actual bats were killed in the making of this thread. SouthArk370Z and Ghostvette like this.

06-12-2016, 01:59 PM	#8 (permalink)
/Angelo350Z/ A True Z Fanatic Join Date: Feb 2013 Location: Germany Posts: 2,230 Drives: Z34 \| MK7 \| F82 Rep Power: 3660	Have you tried pulse charging OP? __________________ 2013 MB NISSAN 370Z SPORT

06-12-2016, 01:05 PM	#5 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 589	batteries are cheap, just replace and no guessing

06-12-2016, 03:26 PM	#9 (permalink)
rww Base Member Join Date: Jul 2015 Location: sioux city ia Posts: 8 Drives: 2013 370z Rep Power: 9	thanks to all who replied, not sure about pulse charging to deal with sulfides, the battery is out, I'm oscillating between 2 and 10 amps every hr, seems to be taking a charge, the meter is acting a little strange on the charger, its the wife's dd so I'm in agreement with barncobob, I will let it sit for a couple of days and see how it reacts to charging, and if there are any doubts, just replace it. sorry for the disappointing shortened title, as one can see I post/blog very little, had the car a yr, visiting the site several times a wk, before joining....I could tell you that my wife is a little hottie who made me go in the garage and remove a bat last wk before she would back the z out in her mini skirt that drives me batsh#$ crazy opening the door for a new title...."batsh%^ crazy with a dead bat and battery in the same wk" but then I'm sure you'd all want pics of the bat....... Fuzzzy likes this.

06-12-2016, 03:30 PM	#10 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	Forget pics of the bat. We want to see the hottie in a mini. Ghostvette and Fuzzzy like this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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