Originally Posted by JimPghPA
OP, if you want anyone to make any intelligent response to your post, you are going to have to include much more details, like what is the AH rating of the battery, or group, manufacturer, what application, or any other significant info about the battery, and much more info about the charger. What type of battery AGM, gell, wet-cell exc. There are several different base type of chemistry that different batteries have, and there are many different sizes.
Your total lack of details is almost unbelievable, and what type of information are you looking for in response.
Information about how long the charger was charging the battery is a good start. But was the battery discharged to start with?
gigo, or in your case no info in = no info out
Apologies, I had initially written on mobile and now can provide some more details/
It's an interstate grp 65, ford f-150. Charger is a viking HF 4am tender/charger. Battery is a flooded type. Bottom line I'm tryng to figure out with limited knowledge if this is a normal thing during charging? I've never used a charger like this so I'm unsure. The battery was purchased for the vehicle a couple of weeks back and I simply wanted to make sure it was 'full' before putting it into service. It indicated charging from 13.1 to full (green), and 13.8 after about 12 hours.