- 
                    
Make sure that the battery compartment is always well ventilated when charging batteries.
 - 
                    
Only charge batteries in the boat with the boat's own chargers. In other cases, remove the batteries from the boat.
 - 
                    
Remember that the batteries discharge an explosive oxy-hydrogen gas at a voltage of 14.4 volts.
- 
                            
The voltage of a normal battery in unloaded status is 12.3-12.7V.
 - 
                            
During charging, the voltage increases and the charging regulator stops the charging process automatically at a preset level.
 - 
                            
The voltage measurement must be taken at the battery terminals, not the alternator, to achieve the correct result.
 
 -