9-38E1 D
 How often should high charging be use with a standard lead acid battery and a fully automatic GMDSS compliant Battery charger?
A. Once every 24 hours for 1 hour.
B. Once every month till the battery reaches 2.5V/cell.
C. Never use High charging rate on a fully charged battery.
D. Once a week till the battery reaches the gassing range.
