Has anyone installed an Optima gel cell battery in a C7

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07-04-2017, 01:54 PM

#21

Patches

Team Owner

Member Since: Sep 2001

Location: Lake Elsinore, CA

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Quote:

Originally Posted by eboggs_jkvl

Sears: Die Hard AGM (Absorbed Glass Mat)
Description Item # 02850748000P Model # 50748

This Sears Diehard is
size G48; Their 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

Just picked one up on sale this weekend.

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07-04-2017, 03:02 PM

#22

JerryU

E-Ray, 3LZ, ZER, LIFT

Member Since: Sep 2007

Location: NE South Carolina

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Quote:

Originally Posted by bolevine

Just wondering if anyone has replaced their standard Delco battery with an optima red or yellow top gel battery in their 2015 Stingray? If so, what battery number do I need to order?

Thanks

Have an Optima Yellow Top in my Street Rod. It's 8 years old! Put a Yellow Top in my C6 (because the car was yellow and the OEM failed!)

That said, the top configuration of the C7 battery must have recesses for the ground and positive terminals. There is a large power board with a number of fuses, one 300 amps as I recall, attached to the positive terminal.

Changing the battery is NOT as easy as a C6 or older Vettes (although I recall changing my '88 battery required removing a piece of the fender!

I looked for a while for an AGM battery (Optima is an AGM-not a gel cell) because I had a low voltage in my OEM battery. Finally picked a DieHard (same one shown in the above post) but there are others. Installed it last summer before I decided to sell the 2014 and buy a Grand Sport.

This is a PDF of my install that includes lots of pics and "How To Get The Power Board Off!": http://netwelding.com/Battery_Issues.pdf

Last edited by JerryU; 07-04-2017 at 03:05 PM.