When I had a Northstar/X2Power group 35 battery, it would routinely charge to 13.0V ( measured 24hr after charging, at around 70F) when it was new. It has the same TPPL construction as Odyssey batteries. As the battery aged in service, the maximum voltage after charging slowly dropped. I took it out of service when it would only get up to 12.5V after charging.
Odyssey H6 battery
- Thread starter RitcheyRch
- Start date
Yepp, without using a carbon pile tester this sounds as an excellent idea when to pull the battery out of service. I also read that after a 24hr idle if it is less than 12.4V then replace the battery.
I tested the battery once more before installing in the vehicle with both the BA9 and BA101
BA9, 12.79 volts, 830 CCA
BA101, 12.77 volts, 863 CCA and 2.81 ohms resistance
BA9, 12.79 volts, 830 CCA
BA101, 12.77 volts, 863 CCA and 2.81 ohms resistance
Did u charge it before making the measurements?
No, waiting for my BatteryMINDer charger to get here tomorrow
I just tested my EverStart Maxx H7 AGM after being on the charger and being fully charged. The Ancel says it is over 800 CCA and it is rated at 800 CCA. I forget the voltage, but it was 13.xx and resistance was 2.x. I then hooked up my Foxwell and it showed 3.x on resistance, I forget voltage, but it showed me 78xish CCA. Which one is more accurate? Who knows... So far, the Foxwell has also given slightly lower numbers on the Odyssey than the Ancel does.
U are correct. Who knows.
I just got my new Odyssey group 35 today. Date code is Feb 2025. Put it on my foxwell and it showed 1091 CCA and 2.x resistance. Popped it on my CTEK anyway, before I put it in the car. Such a heavy battery for its size. Didn't check with my Ancel.
f355spider
$50 Site Donor 2025
I have the Ancel BA101 and Schumacher BT-175 battery testers. The Schumacher only give voltage, CCA and pass/fail/recharge. First time I used the Ancel BA101 on my truck the results were pretty close. But upon using on multiple cars now, I see the Ancel consistently gives lower CCA ratings by about 70 or so CCA. But both give a voltage and pass or recharge rating that coincides pretty closely. Seems the algorithm can vary by manufacturer a bit...
It's weird how that works. I guess it is too much to ask for accuracy or maybe accuracy doesn't exist in this price range.
I’ve got a carbon pile and an ancel 101 and the ancel is very accurate, as long as you remove the surface charge. In the car it’s easy. I let it set for an hour, open the doors and turn on the headlights till they turn off by themselves. I see no need to zap the battery with a carbon pile unless I’ve got a questionable battery.
Cardiologist do stress test and monitor the patients heart EKG ensuring that they don't have a cardiac event.
Same concept as the carbon pile instrument. U don't want to actively shorten the life of a battery.
