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New Battery, 7 months old #4809555
07/09/18 07:30 PM
07/09/18 07:30 PM
Joined: Dec 2014
Posts: 388
Minnesota
2010Civic Offline OP
2010Civic  Offline OP
Joined: Dec 2014
Posts: 388
Minnesota
I need a new car battery so I went to Costco to see what they have. They have Interstate batteries for very good prices.

They had about 20 batteries of my size. Everyone of them was made in December of 2017. Do you think this is a problem being 7+ months old? You know they have never been charged or topped off in the last 7 months.

What are your thoughts? How many months is acceptable?


2010 Honda Civic LX
Valvoline SynPower 5w-20 - Honda oil filter
58,500 miles
Re: New Battery, 7 months old [Re: 2010Civic] #4809563
07/09/18 07:35 PM
07/09/18 07:35 PM
Joined: Apr 2013
Posts: 2,334
The Northeast
mclasser Offline
mclasser  Offline
Joined: Apr 2013
Posts: 2,334
The Northeast
I'd pass. I don't buy batteries less than a couple of months old.


2018 Hyundai Elantra VE -- 4K
2013 Honda Pilot EX-L 4WD -- 56K
2002 Honda Accord EX-L -- 211K

Re: New Battery, 7 months old [Re: 2010Civic] #4809567
07/09/18 07:40 PM
07/09/18 07:40 PM
Joined: Jun 2003
Posts: 17,374
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,374
Deplorable in apple valley, ca
My supplier let's them sit 9 months before they will replace them. I do check and charge as necessary every month.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: New Battery, 7 months old [Re: 2010Civic] #4809570
07/09/18 07:41 PM
07/09/18 07:41 PM
Joined: Dec 2014
Posts: 388
Minnesota
2010Civic Offline OP
2010Civic  Offline OP
Joined: Dec 2014
Posts: 388
Minnesota
Yeah, I'm going to try a different store and see if they have newer stock.


2010 Honda Civic LX
Valvoline SynPower 5w-20 - Honda oil filter
58,500 miles
Re: New Battery, 7 months old [Re: 2010Civic] #4809580
07/09/18 07:52 PM
07/09/18 07:52 PM
Joined: Oct 2010
Posts: 1,770
california
wrcsixeight Offline
wrcsixeight  Offline
Joined: Oct 2010
Posts: 1,770
california
I'd prefer a 7 month old battery to have been resting in Minnesota, as opposed to South Florida. temperature increases self discharge. Resting discharged causes sulfation and loss of capacity

Doubt they ever top charge them. Bring a voltmeter, Hope to see 12.6v+.

They still give the warranty from date of purchase.

Good price, good warranty, I'd be tempted, but then I can bring the battery to 14.8 volts for as long as required for the specific gravity of the electrolyte, measured with a temperature compensating hydrometer, to max out on each of the 6 cells.

If the SG never got upto the 1.275 level, i would go as high as 16.2 volts.

if 16.2v could not return specific gravity to 1.275 on all cells, I would not expect a good lifespan from the battery and would warranty it within the free replacement period. Costco is good like that.

Expecting a vehicle to top charge such a battery is unwise as higher electrical pressure is required for longer to max out the specific gravity and dissolve the sulfation.

The degree of sulfation depends on just how much self discharge has occurred since the battery was put on the shelf, combined with its stat of charge when it was put up there.

In theory batteries ship fully charged.
In reality the electricity and time required to top charge batteries before they leave the factory eats into max profit, and thus he batteries do not leave the factory top charged.

All lead acid batteries always want to be fully charged, and kept cool, for maximum longevity and performance/reliability during that life.

If vehicles actually were designing charging systems with max battery life in mind, they would insure full charge actually occurs.

nowadays modern vehicles hope to keep the battery at a low enough level, so that when the brakes are applied the voltage regulator can ask for higher voltage, loading the alternator, asking it to feed the battery 20 to 50 amps, and thus the engine, and help MPG by 0.0006.

if the battery were fully charged then it would not be able to accept 20 to 50 amps with a higher voltage requirement, and not be able to make it appear that the vehicle gets better MPG's.


LA 318 Roller Cam
Pennzoil Platinum 10w-30
Fram ultra XG8A
Fram Ultra XG16 on remote transmission filter mount
Re: New Battery, 7 months old [Re: 2010Civic] #4809595
07/09/18 08:03 PM
07/09/18 08:03 PM
Joined: Apr 2012
Posts: 5,166
MA
Wolf359 Offline
Wolf359  Offline
Joined: Apr 2012
Posts: 5,166
MA
Originally Posted By: 2010Civic
I need a new car battery so I went to Costco to see what they have. They have Interstate batteries for very good prices.

They had about 20 batteries of my size. Everyone of them was made in December of 2017. Do you think this is a problem being 7+ months old? You know they have never been charged or topped off in the last 7 months.

What are your thoughts? How many months is acceptable?


Are you sure? You can be that guy that takes them out of the rack to check the date of the last battery. Usually the newest one is at the back. I've done that a couple times. You get a battery that's one month old instead of 5-6. Also they sometimes go by the sticker on the battery so if it's just a 2 or 3 year warranty, you're losing 7 months worth of warranty. For me, one or two months is acceptable, otherwise I'm just going to go to another store.

Re: New Battery, 7 months old [Re: Wolf359] #4809602
07/09/18 08:13 PM
07/09/18 08:13 PM
Joined: Dec 2014
Posts: 388
Minnesota
2010Civic Offline OP
2010Civic  Offline OP
Joined: Dec 2014
Posts: 388
Minnesota
Originally Posted By: Wolf359
Originally Posted By: 2010Civic
I need a new car battery so I went to Costco to see what they have. They have Interstate batteries for very good prices.

They had about 20 batteries of my size. Everyone of them was made in December of 2017. Do you think this is a problem being 7+ months old? You know they have never been charged or topped off in the last 7 months.

What are your thoughts? How many months is acceptable?


Are you sure? You can be that guy that takes them out of the rack to check the date of the last battery. Usually the newest one is at the back. I've done that a couple times. You get a battery that's one month old instead of 5-6. Also they sometimes go by the sticker on the battery so if it's just a 2 or 3 year warranty, you're losing 7 months worth of warranty. For me, one or two months is acceptable, otherwise I'm just going to go to another store.


Yep, the way the rack was I could easily see all the date stickers.


2010 Honda Civic LX
Valvoline SynPower 5w-20 - Honda oil filter
58,500 miles
Re: New Battery, 7 months old [Re: 2010Civic] #4809612
07/09/18 08:17 PM
07/09/18 08:17 PM
Joined: Dec 2012
Posts: 606
Washington for now
WhyMe Offline
WhyMe  Offline
Joined: Dec 2012
Posts: 606
Washington for now
your costco must be a slow seller of batteries. the couple i go to the batteries are only a month old at the most.

Re: New Battery, 7 months old [Re: 2010Civic] #4809618
07/09/18 08:23 PM
07/09/18 08:23 PM
Joined: Mar 2004
Posts: 20,760
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,760
Upstate NY
Walmart MAXX


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: New Battery, 7 months old [Re: 2010Civic] #4809626
07/09/18 08:35 PM
07/09/18 08:35 PM
Joined: Sep 2004
Posts: 21,636
Orlando, FL
Mr Nice Offline
Mr Nice  Offline
Joined: Sep 2004
Posts: 21,636
Orlando, FL
When I buy a battery at AAP, I'll always pick the newest battery.

Re: New Battery, 7 months old [Re: 2010Civic] #4809695
07/09/18 09:42 PM
07/09/18 09:42 PM
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Lead-Acid cells are 2.2V each; fully charged is 13.2V

If a load test doesn't show serious voltage drop, it's "new enough".


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: New Battery, 7 months old [Re: 2010Civic] #4809780
07/10/18 01:06 AM
07/10/18 01:06 AM
Joined: Mar 2018
Posts: 60
TX
raburn2906 Offline
raburn2906  Offline
Joined: Mar 2018
Posts: 60
TX
The good thing about buying it at Costco is they will warranty it with no issues or questions asked. I've bought three Interstate batteries from them, one was warrantied at 2 1/2 years without question. It did however cost me $3 for the disposal fee,


2008 Ford F150 XLT 4.6L
171,609 - Valvoline Synthetic Max Life - Wix XP51372
2001 Ford F150 XLT 5.4L
216,051- Valvoline Synthetic Max Life - Wix 51372
Re: New Battery, 7 months old [Re: 2010Civic] #4809833
07/10/18 05:51 AM
07/10/18 05:51 AM
Joined: Jun 2002
Posts: 3,505
Chattanooga, TN
Spector Offline
Spector  Offline
Joined: Jun 2002
Posts: 3,505
Chattanooga, TN
Batteries plus Duracells marketing state the store returns them after 2 months so supposedly fresh batteries and these are made in USA whereas about all others are made in Mexico. All of AAP, AZ, etc are Mexican made, Costco, Sam's and BJs Mexican as well I believe. Optima's went downhill IMO, once they switched production to Mexico, now average IMO.

Re: New Battery, 7 months old [Re: 2010Civic] #4809850
07/10/18 06:23 AM
07/10/18 06:23 AM
Joined: Dec 2017
Posts: 2,350
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,350
SE British Columbia, Canada
The places I use up here use the receipt, not the sticker for the warranty. I keep the receipt in the glove box.

Last edited by Snagglefoot; 07/10/18 06:33 AM.

If you want the job done right......do it yourself.
Re: New Battery, 7 months old [Re: 2010Civic] #4809877
07/10/18 06:55 AM
07/10/18 06:55 AM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
Years back service stations and auto repair centers would "prep" the batteries they sold when you bought them. They would fill the electrolyte and charge them only after they were purchased. (Batteries were shipped in a box dry with the acid packaged in a separate container right alongside). And after charging they would check each cell with a Hydrometer to be sure it was up to full capacity, and top off each cell with electrolyte before installing it.

Today that's not economically viable, so they ship them "ready to go". And many times they end up sitting for months. All depending on how brisk battery sales are at that particular place, along with the popularity and age of the vehicle they are going into. I always put any new battery I purchase on a slow charger, (6 Amps), and many will take a couple hours or more before they come up to full charge. I've seen some batteries in auto parts stores with dust covering the top of them. Were they kept fully charged over these long time periods? You tell me.

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