Bluesipp carries three separate 12 volt battery supplies.
Bank A 6 volt Traction Batteries connected to supply 12volts Capacity 450 Ampere hours
Located in the aft cabin
Bank B 2x Heavy Duty Batteries Capacity 340 Ampere hours
Located in the forward cabin near windlass and water maker.
1x Gel Engine starter Battery Capacity 75 Ampere hours
Located in the aft cabin near the starter motor.
Bank B supplies the HF radio and to avoid earth loops is electrically isolated from all other batteries*.
Bank B supplies all electronic navigational equipment, the water maker and the windlass.
Bank A supplies domestic equipment and lighting
Bank A supplies navigation lights
Bank B is fed from an engine mounted 90A alternator
Bank A is fed from an engine mounted 60A alternator - which also feeds the starter battery.
*Ultimately every piece of equipment shares the sea water as an "earth"
Charging when connected to shore supply is via a Xantrex 20 Amp smart charger
Charging whilst under sail alone is available from the Aquair 100 towed water turbine, this provides a reliable 5Amps when sailing at hull speed.
The Aquair also has a wind turbine which supplies charging current when at anchor.
Additionally Bluesipp carries two small solar panels which we use to keep the batteries fully charged when we are away.