On-board electrical system for :

Find out what capacity your VARTA battery should be with our handy calculator, Simply enter the performance expected of the individual power consumers (in Watts, W) and the estimated usage times (in hours, h) and click on "calculate". Our calculator will then give you the necessary battery capacity required per day, and find the right VARTA battery for your boat.

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Your power consumers:

Performance
(in Watt, W)

Voltage
(in Volt, V)

Current consumption
(in Ampere, A)

Time of supply
(in hours, h)

Capacity needs
(in Ampere-hours., Ah)

Navigation Lights

starboard sidelight green	:	12	=	x	=
portside sidelight red	:	12	=	x	=
two color lantern	:	12	=	x	=
three color lantern	:	12	=	x	=
sternlight	:	12	=	x	=
anchor light	:	12	=	x	=

LED Lights

starboard sidelight green	:	12	=	x	=
portside sidelight red	:	12	=	x	=
two color lantern	:	12	=	x	=
three color lantern	:	12	=	x	=
sternlight	:	12	=	x	=
anchor light	:	12	=	x	=

Exterior Lights

decklight	:	12	=	x	=
search headlight	:	12	=	x	=
other lights	:	12	=	x	=

Interior Lights

parlour light	:	12	=	x	=
cabin light (1)	:	12	=	x	=
cabin light (2)	:	12	=	x	=
other lights	:	12	=	x	=
WC light	:	12	=	x	=
pantry light	:	12	=	x	=
chart table light	:	12	=	x	=

Electrical Consumers

refrigerator	:	12	=	x	=
freezer	:	12	=	x	=
Pelitier cool box 8 l	:	12	=	x	=
Pelitier cool box 20 l	:	12	=	x	=
Pelitier cool box 32 l	:	12	=	x	=
Pelitier cool box 50 l	:	12	=	x	=
Kompressor cool box 26 l	:	12	=	x	=
Kompressor cool box 32 l	:	12	=	x	=
Kompressor refrigerator 110 l	:	12	=	x	=
refrigerator 80 l	:	12	=	x	=
pressure water pump	:	12	=	x	=
kettle	:	12	=	x	=
coffee machine	:	12	=	x	=
microwave	:	12	=	x	=
bilge pump - shower	:	12	=	x	=
bilge pump - bilge	:	12	=	x	=
electro WC	:	12	=	x	=
alarm device	:	12	=	x	=
water desalting	:	12	=	x	=
capstan	:	12	=	x	=
heater	:	12	=	x	=

navigation and other equipment

map plotter	:	12	=	x	=
GPS	:	12	=	x	=
instruments for windspeed etc.	:	12	=	x	=
sonar, log etc.	:	12	=	x	=
compass	:	12	=	x	=
auto pilot	:	12	=	x	=
auto pilot	:	12	=	x	=
radar	:	12	=	x	=
VHF - Spark	:	12	=	x	=
radio	:	12	=	x	=
television	:	12	=	x	=
satelite device	:	12	=	x	=
Notebook	:	12	=	x	=
power supply	:	12	=	x	=
other devices	:	12	=	x	=
electric generator charge	:	12	=	x	=

Additional Electrical Consumers:

On-board electrical system for : boats caravans

On-board electrical system for :