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.
How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. basic charger usually charges at around 2 amps-and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour battery.