Battery replacement
Thread Starter
Intermediate
Joined: Mar 2014
Posts: 30
Likes: 5
From: La Quinta,CA
Battery replacement
I need to replace battery in my 2016 C7 Stingray. Called the dealer for a price. Asked about price on AGM battery. They told me AGM battery is not recommended and that they did not stock it. Why is that? Is there a downside to putting in an AGM?
I have another question. Has anyone figured out a..method to lift the old battery out?
Bought a replacement battery for my 2016 C7 Stingray at Walmart, believe it or not. Platinum EverStart AGM 760 CCA with a 5 year full replacement warranty a bargain price of $149.99.
Ran into a problem. Got everything disconnected on dead battery except removal of fuse block mounted on top of battery. Cannot dislodge it. What am I doing wrong? Any suggestions or hints. Don’t want to do any damage. Cannot remove battery until fuse block is removed.
Any help is appreciated.
I have another question. Has anyone figured out a..method to lift the old battery out?
Bought a replacement battery for my 2016 C7 Stingray at Walmart, believe it or not. Platinum EverStart AGM 760 CCA with a 5 year full replacement warranty a bargain price of $149.99.
Ran into a problem. Got everything disconnected on dead battery except removal of fuse block mounted on top of battery. Cannot dislodge it. What am I doing wrong? Any suggestions or hints. Don’t want to do any damage. Cannot remove battery until fuse block is removed.
Any help is appreciated.
Last edited by robertdamiani; Oct 26, 2019 at 04:02 PM. Reason: Battery install problem
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,955
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
This Sears Diehard is
Die Hard AGM (Absorbed Glass Mat)
size G48; Their Model 50748Sears:
Description Item # 02850748000P Model # 50748
Specs Compared to OEM:
CCA @ 0F: DieHard = 760; OEM = 565
20hr Ah: DieHard = 70; OEM = 70
RC DieHard =120; OEM
Weight DieHard = 44 lbs; OEM ~40 lbs
Specifications Voltage 12 Volts Cold Cranking Amps 760 CCA Cranking Amps 875 CA Reserve Capacity 120 RC Amp Hour Rate (20 Hrs) 70 Ah Approximate Weight 44 Lbs BCI Group Size 48 Dimensions Length 11" Width 6 7/8" Height 7 1/2"
Elmer
Die Hard AGM (Absorbed Glass Mat)
size G48; Their Model 50748Sears:
Description Item # 02850748000P Model # 50748
Specs Compared to OEM:
CCA @ 0F: DieHard = 760; OEM = 565
20hr Ah: DieHard = 70; OEM = 70
RC DieHard =120; OEM
Weight DieHard = 44 lbs; OEM ~40 lbs
Specifications Voltage 12 Volts Cold Cranking Amps 760 CCA Cranking Amps 875 CA Reserve Capacity 120 RC Amp Hour Rate (20 Hrs) 70 Ah Approximate Weight 44 Lbs BCI Group Size 48 Dimensions Length 11" Width 6 7/8" Height 7 1/2"
Elmer
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
I run AGM batteries in my boat - they outlast lead acid batteries by a long shot. I swear by them
Team Owner
Joined: Sep 2000
Posts: 25,029
Likes: 2,719
From: Far NW 'burbs of Chicago
St. Jude Donor '13
If the battery in a C7 leaks, where does the acid go?
Does it destroy something important like on some earlier generations, or just dribble down into a tray and sits there?
Does it destroy something important like on some earlier generations, or just dribble down into a tray and sits there?
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,955
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Well, it's in the rear well and the only thing under it might be an exhaust pipe or the road.
Elmer
Drifting
Joined: Apr 2018
Posts: 1,324
Likes: 929
From: Burnt Hills NY
Been running an AGM for 2 years and using the factory battery tender with no problems. Car sits 6 months through the winter. Bought a cheap terminal strap at parts store for $6. It worked great except the battery wants to tilt and you need to keep it straight with the other hand. A third set of hands would have helped since it is a little awkward and heavy for a one hand lift.
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Le Mans Master
Joined: Aug 2015
Posts: 6,884
Likes: 2,887
From: Toronto
GM doesn't recommend or stock a high quality AGM battery because they cost more for new build cars. Putting a low quality battery in at the factory and selling a better version at dealers has bad optics. Im changing my battery tomorrow at 3.5 years as preventative maintenance.
Team Owner
Joined: Sep 2000
Posts: 25,029
Likes: 2,719
From: Far NW 'burbs of Chicago
St. Jude Donor '13
GM doesn't recommend or stock a high quality AGM battery because they cost more for new build cars. Putting a low quality battery in at the factory and selling a better version at dealers has bad optics. Im changing my battery tomorrow at 3.5 years as preventative maintenance.
Last time I looked, there was a GM replacement battery for the C7 that had more power or longer warranty (can't remember which) than what comes in the car new.
Team Owner
Joined: Sep 2000
Posts: 25,029
Likes: 2,719
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Also, I'm not sure if our local dealer actually stocked the "better" Delco battery, or they had to be special ordered.
I'll find out next Spring, our original battery will be three years since we bought the car new, and 3 1/2 years from manufacture. If I can't get it replaced under warranty, I'll buy a new one as a preventive measure and will pay extra for the "better" version if available.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Heel & Toe
Joined: Jun 2015
Posts: 15
Likes: 3
I replaced the battery in my 2014 earlier this year because the it didn’t seem to charge on my short (22 mile) trip to lunch like it use too and start ups seemed a little sluggish. So I replaced it before it failed...(not bad - a factory battery lasted 5 years plus).
I wanted to get the Diehard AGM that Elmer mentioned above - but they didn’t have stock at that time and I was fired up and in a hurry to get it done.
Someone else in this forum had recommended www.batteriesplus.com so I picked up a battery from them - it was a little more expensive than the diehard - $219 vs $279 - but included a 5 year warranty over the Sears 3 year. Part number SLI48AGMDP. I did the work myself - the weight of the battery made the work awkward- I did buy a strap to lift the battery from Pep Boys. There are instructions in this forum or elsewhere for the removal and replacement - check it out before doing it - get a helper - you may need a extra hand because of the weight and the angle you have to have to drop it back in place. (I know I wish I had a helper 😂
.
A great advantage of AGM is the depth of discharge of 80% over the flooded (50%).
https://batteryuniversity.com/learn/..._glass_mat_agm
https://www.midenginecorvetteforum.c...-by-step-guide
I wanted to get the Diehard AGM that Elmer mentioned above - but they didn’t have stock at that time and I was fired up and in a hurry to get it done.
Someone else in this forum had recommended www.batteriesplus.com so I picked up a battery from them - it was a little more expensive than the diehard - $219 vs $279 - but included a 5 year warranty over the Sears 3 year. Part number SLI48AGMDP. I did the work myself - the weight of the battery made the work awkward- I did buy a strap to lift the battery from Pep Boys. There are instructions in this forum or elsewhere for the removal and replacement - check it out before doing it - get a helper - you may need a extra hand because of the weight and the angle you have to have to drop it back in place. (I know I wish I had a helper 😂
.A great advantage of AGM is the depth of discharge of 80% over the flooded (50%).
- 60 Month Free Replacement Warranty
- Pure lead technology delivers the performance of 2 batteries in 1: starting and deep cycle
- 28X more vibration resistant than conventional batteries
- 100% spill-proof and maintenance free AGM technology
- Item Number: SLI48AGMDP
- Brand: X2Power
- Voltage: 12
- Format: BCI Group 48
- Lead Acid Type: Deep Cycle, Dual Purpose (Starting/Cycling), Starting
- Capacity: 67AH
- Cold Cranking Amps: 775
- Battery Type: Ultimate
- Capacity 20hr: 67AH
- Chemistry: Lead Acid
- Cranking Amps: 915
- Lead Acid Design: AGM
- Made in the USA: True
- Maintenance Free: Yes
- Product Category: Auto/Light Truck
- Product Sub Category: Premium AGM
- Terminal Type: SAE, Automotive Post
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov- Warranty: 60 Month Free Replacement
- Weight: 48.6 lbs
- Length: 10.9 in
- Width: 6.9 in
- Height: 7.4 in
https://batteryuniversity.com/learn/..._glass_mat_agm
https://www.midenginecorvetteforum.c...-by-step-guide
Thread Starter
Intermediate
Joined: Mar 2014
Posts: 30
Likes: 5
From: La Quinta,CA
Got a good deal at Walmart of all places. Bought a Platinum EverStart group size H6 which is a group size 48 for $149.99. Unreal price for an AGM 760 CCA with a 5 year fully replaceable warranty.
Starting removal of dead battery following step by step instructions from midenginecorvette website. Got as far as removal of fuse block. Frustrated, so I’m taking a break with a glass of wine.
Any suggestions as to why am having this problem? Any hints, etc.
Starting removal of dead battery following step by step instructions from midenginecorvette website. Got as far as removal of fuse block. Frustrated, so I’m taking a break with a glass of wine.
Any suggestions as to why am having this problem? Any hints, etc.
Heel & Toe
Joined: Jun 2015
Posts: 15
Likes: 3
