Re: NoCo = NoGo 4 AGM Batteries
[Re: Dart 500]
#3238967
06/17/24 11:19 AM
06/17/24 11:19 AM
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Joined: Jan 2003
Posts: 43,960
Round Lake Beach, Illinoisy
Rhinodart
Rhinotruck
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Rhinotruck
Joined: Jan 2003
Posts: 43,960
Round Lake Beach, Illinoisy
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I was always told regular lead acids are toast if they get drained past 50%. Big bad "deep cycle" AGM's are a whopping 60%. There is no need to run that old crap when LiFeP04's are so cheap now and can be run to zero % every single time. I have been seeing the ads for the Bluetti portable energy source on TV for a short time now, looks interesting. I am still on the fence after I lost two cars and my garage to a LI battery meltdown, but it seems the LiFe batteries are much more stable. Not quite ready to make myself become another guinea pig to emerging technology yet, but I will keep an eye on them. I am in the market for another car battery, and they have gone pretty stupid in price...  Are any made in the USA?
Last edited by Rhinodart; 06/17/24 11:22 AM.
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
JB Rhinehart, Realist
A-Body's RULE!
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Re: NoCo = NoGo 4 AGM Batteries
[Re: RTSE4ME]
#3238969
06/17/24 11:36 AM
06/17/24 11:36 AM
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Joined: Jan 2003
Posts: 5,472
So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,472
So Cal
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I have had 3 AGM batteries die on me (2 Optimas and 1 YUSA) I tried using the NoCo Genius10 charger in repair mode to resurrect the dead batteries none would fully charge again.
Yesterday, I found a old lead acid battery my friend gave to me a few years ago it was dead 4volts. I hooked it up to the NoCo in repair mode and then just a normal charge overnight. Its fully charged now.
Do AGM batteries not being drained? Once they go below a certain voltage they are done no resurrection? I have multiple Optima AGMs and have gotten good life from them... I did have my yellow-top run down when I left the interior lites on, tried my expensive Sears smart charger in AGM mode but didn't bring it back... So I tried an Optima charger and it brought it rite back up many months ago. Can't comment about the NoCo Genius, I have no experience but can confirm the Optima charger does work on Optimas... Just my $0.02... 
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Re: NoCo = NoGo 4 AGM Batteries
[Re: Rhinodart]
#3238971
06/17/24 11:38 AM
06/17/24 11:38 AM
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Joined: Feb 2022
Posts: 1,375
Nor here, Nor there
Dart 500
pro stock
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pro stock
Joined: Feb 2022
Posts: 1,375
Nor here, Nor there
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I was always told regular lead acids are toast if they get drained past 50%. Big bad "deep cycle" AGM's are a whopping 60%. There is no need to run that old crap when LiFeP04's are so cheap now and can be run to zero % every single time. I have been seeing the ads for the Bluetti portable energy source on TV for a short time now, looks interesting. I am still on the fence after I lost two cars and my garage to a LI battery meltdown, but it seems the LiFe batteries are much more stable. Not quite ready to make myself become another guinea pig to emerging technology yet, but I will keep an eye on them. I am in the market for another car battery, and they have gone pretty stupid in price... Are any made in the USA? The one I have in my RV came out of Georgia (11 year warranty, installer said its built to last 30 years) https://www.epochbatteries.com/ Battle borns are out of Reno https://battlebornbatteries.com/
Last edited by Dart 500; 06/17/24 11:39 AM.
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Re: NoCo = NoGo 4 AGM Batteries
[Re: Sinitro]
#3238988
06/17/24 01:01 PM
06/17/24 01:01 PM
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Joined: Jan 2003
Posts: 2,127
MD
RTSE4ME
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,127
MD
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I have multiple Optima AGMs and have gotten good life from them... I did have my yellow-top run down when I left the interior lites on, tried my expensive Sears smart charger in AGM mode but didn't bring it back... So I tried an Optima charger and it brought it rite back up many months ago. Can't comment about the NoCo Genius, I have no experience but can confirm the Optima charger does work on Optimas... Just my $0.02... Interesting, my Yellow top died from the trunk light left on. The Optima chargers are less expensive now....$140 and $200 Wonder if its worth the gamble. My Yellow top is $310 now.
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Re: NoCo = NoGo 4 AGM Batteries
[Re: RTSE4ME]
#3239008
06/17/24 02:59 PM
06/17/24 02:59 PM
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Joined: Jan 2003
Posts: 43,960
Round Lake Beach, Illinoisy
Rhinodart
Rhinotruck
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Rhinotruck
Joined: Jan 2003
Posts: 43,960
Round Lake Beach, Illinoisy
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I have multiple Optima AGMs and have gotten good life from them... I did have my yellow-top run down when I left the interior lites on, tried my expensive Sears smart charger in AGM mode but didn't bring it back... So I tried an Optima charger and it brought it rite back up many months ago. Can't comment about the NoCo Genius, I have no experience but can confirm the Optima charger does work on Optimas... Just my $0.02... Interesting, my Yellow top died from the trunk light left on. The Optima chargers are less expensive now....$140 and $200 Wonder if its worth the gamble. My Yellow top is $310 now. The best way I have found to charge and Optima is use a regular lead acid battery and hook it up to the charger then with a set of jumper cables to the Optima, always worked fine... 
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
JB Rhinehart, Realist
A-Body's RULE!
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Re: NoCo = NoGo 4 AGM Batteries
[Re: RTSE4ME]
#3239351
06/19/24 01:47 PM
06/19/24 01:47 PM
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Joined: Jan 2003
Posts: 5,472
So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,472
So Cal
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I have tried that method and others nothing will bring back an AGM.
I'm going to try a Optima charger and if it doesn't work they will get it back. I liked my Yellow top used it for my Challenger and winch for my trailer. Can't comment much but.... But later batteries including Optimas' are sensitive to the re-charging process, using the Optima charger has a multi-step voltage charge cycle that worked for me.. Just my $0.02...
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Re: NoCo = NoGo 4 AGM Batteries
[Re: Sinitro]
#3239373
06/19/24 03:58 PM
06/19/24 03:58 PM
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Joined: May 2019
Posts: 6,581
nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,581
nowhere
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I have tried that method and others nothing will bring back an AGM.
I'm going to try a Optima charger and if it doesn't work they will get it back. I liked my Yellow top used it for my Challenger and winch for my trailer. Can't comment much but.... But later batteries including Optimas' are sensitive to the re-charging process, using the Optima charger has a multi-step voltage charge cycle that worked for me.. Just my $0.02... Gee, how do they ever survive being charged by the alternator
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Re: NoCo = NoGo 4 AGM Batteries
[Re: Sniper]
#3239486
06/20/24 09:36 AM
06/20/24 09:36 AM
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Joined: Jan 2003
Posts: 5,472
So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,472
So Cal
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I have tried that method and others nothing will bring back an AGM.
I'm going to try a Optima charger and if it doesn't work they will get it back. I liked my Yellow top used it for my Challenger and winch for my trailer. Can't comment much but.... But later batteries including Optimas' are sensitive to the re-charging process, using the Optima charger has a multi-step voltage charge cycle that worked for me.. Just my $0.02... Gee, how do they ever survive being charged by the alternator The challenge is to bring the battery back up to specs when run down... Every day charging and running is not an issue, I got 11 years out of my last red-top Optima.. Just my $0.02...
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