I like that CTEK says more precisely what it does. And that's why I use their charger. There's some lacking details, but it seems better than the alternatives at the same price range.Interesting reading on what is being posted here. This is a chart from CTEK (https://smartercharger.com/), which many major car manufacture uses and rebrand as their own chargers. That list include notable companies such as Ferrari, Lamborghini, Audi, Mercedes, BMW and Porsche. I am not trying to argue because I know little to nothing on this topic. I have been using CTEK charger for almost 20 years now and remember seeing this chart in the CTEK's user's manual. I would love to learn more about this if someone can please explain the possible reasons behind this chart vs. what is being posted here. Thanks.
I always appreciate your insight.See what your charging source is actually doing, and then you can also, with experience, estimate its remaining health/ ability/lifespan.
So, how would one safely take a new battery to 50% charge? Leave lights on until it reads 12.1V (or whatever the battery manufacturer claims is 50% charge at given temp)?
It seems like CTEK absorption charge is doing what is ideal. Charging until it drops below some minimum current...Though it doesn't say what that minimum is.
Perhaps that is the critical detail that is missing?
The only other downside is max amperage is limited, but that will just impact the time it takes.
And you can choose 14.4 or 14.7V which should cover most bases. And it is temperature compensated.