C8 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by: CARiD

Question on C8 battery charger

Thread Tools
 
Search this Thread
 
Old Mar 5, 2025 | 07:01 PM
  #1  
kellyreno's Avatar
kellyreno
Thread Starter
Instructor
All Eyes On Me
Photogenic
 
Joined: Jan 2024
Posts: 228
Likes: 134
From: South Carolina
Default Question on C8 battery charger

Finally hooked up the tender today. OAT 45 degrees. Car was sitting for 2 days. It started on the lowest charge state and quickly moved to the second. After 3 hours it is still on the third. The manual says nothing on the state of charge for each of the four ready indicators, only that it's ready to start when the third lamp is lit. Is that 80%?
​Does this charger maintain, float and condition as well as charge. My Noco Genius 1 does all of this. "12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive". It provides ongoing maintenance and optimization and can be connected all the time. It cost 1/3 the price of the C8 labeled one.

I am wondering if I should check the fluid level of mine based on this slow charge. 2024 5600 miles.

Anyone know the amp rating of the factory battery?

Reply
Old Mar 5, 2025 | 08:46 PM
  #2  
Slimchieu's Avatar
Slimchieu
7th Gear
 
Joined: Feb 2025
Posts: 7
Likes: 1
Default

Its just slow
Reply
Old Mar 6, 2025 | 08:02 AM
  #3  
Andybump's Avatar
Andybump
Race Director
15 Year Member
Community Influencer
Community Favorite
Top Answer: 5
 
Joined: Mar 2007
Posts: 11,096
Likes: 8,253
Default

Originally Posted by kellyreno
Finally hooked up the tender today. OAT 45 degrees. Car was sitting for 2 days. It started on the lowest charge state and quickly moved to the second. After 3 hours it is still on the third. The manual says nothing on the state of charge for each of the four ready indicators, only that it's ready to start when the third lamp is lit. Is that 80%?
​Does this charger maintain, float and condition as well as charge. My Noco Genius 1 does all of this. "12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive". It provides ongoing maintenance and optimization and can be connected all the time. It cost 1/3 the price of the C8 labeled one.

I am wondering if I should check the fluid level of mine based on this slow charge. 2024 5600 miles.

Anyone know the amp rating of the factory battery?
My 2021 charger looks just like yours. The manual that came with mine has a table that shows time to 80% SOC, and it show the "nearly full" battery symbol lit in that table, strongly suggesting that the "nearly full" symbol is 80%. The output current is shown as 4.3 amps in my manual.

Edit: The caption at the top of the "time to 80% table" I mentioned, the caption is "Ready to Use". On the back cover of my manual, that light is identified as "READY TO USE". In the manual, it also says it might take up to 50 hours for the final "fully charged" light to come on.




Last edited by Andybump; Mar 6, 2025 at 08:25 AM.
Reply

Get notified of new replies

To Question on C8 battery charger





All times are GMT -4. The time now is 02:06 AM.

story-0
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-1
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-2
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-3
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-4
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-5
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-6
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-7
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-8
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE
story-9
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette

Slideshow: Check out these easy-to-install upgrades from Extreme Online Store that reshape the look and feel of the C6 Corvette.

By Pouria Savadkouei | 2026-03-23 17:00:27


VIEW MORE