What is an IVC filter? It is a device surgically implanted and designed to prevent blood clots from making their way into the heart (pulmonary embolisms). What is an IVC filter? It is a device surgically implanted and designed to prevent blood clots from making their way into the heart (pulmonary embolisms). Skip to primary navigation
It takes between 8 and 12 hours to charge a 12 volt battery at 2  amps. The actual time will depending on how much charge is in the  battery initially. 2 people found this useful.
From 50% charged (12.2V in a 12 volt battery) to 80% (12.4) will go relatively quickly but the last 20% will take much longer as charge current becomes limited buy the batteries. There is nothing wrong with charging slowly (Unless of course you are in a hurry!). There is lots to learn about battery charging.