Best ratings
1 . BLUE SEA MINi ACR Automatic Charging Relay / 65A
„The best relay charging insulation on the market.“
2 . NAUTIC POWER - Lossless Diode Distributor / 90 A / 2 batteries
„Easy to fit.“
3 . BLUE SEA HD Automatic Charging Relay 500 A / 12V
„I use this relay as a split charge relay in my off-road vehicle. The reason for the high continuous current draw is that the second battery is connected when I use the winch. The automatic function works perfectly. I've never seen this switch before, and it provides excellent feedback on the relay's current state.“
Automatic Charging Relays for Boats
Charging relays enable several batteries to be charged simultaneously and are ideal for adding another battery to an existing vehicle electrical system. They are easy to install with little effort needed. These special relays often provide additional features, such as jump start or protection against under and overvoltage.
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Ratings
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Operating voltage
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Generator start-up control
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Filter
Order by
Ratings
Price range
€
Availability
Operating voltage
Accessories for
Connector pins
Generator start-up control
Height
Max. charging current
Voltage loss
Weight
kg
Width
mm
BLUE SEA
HD Automatic Charging Relay 500 A / 12V
only
€349.95
1
BLUE SEA
MINi ACR Automatic Charging Relay / 65A
only
€99.95
2
BLUE SEA
Automatic Charging Relay / 120A
only
€145.95
3
Made in Europe
NAUTIC POWER - Lossless Diode Distributor / 90 A / 2 batteries
only
€109.95
8
NAUTIC POWER - Lossless Diode Distributor / 90 A / 3 batteries
only
€149.95
1
Customer ratings & reviews
All reviews (208.229)
Kim P. on 25.07.2026
Good and quickly.
Claes B. on 25.07.2026
Items as expected. Seems to be of good quality.
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