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Battery Isolators

Battery Isolators

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ARGO FET Battery Isolator / 100A / 2 battery banks
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VICTRON ARGO FET Battery Isolator / 100A / 2 battery banks
104.95 EUR only €105.83
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ARGO FET Battery Isolator / 100A / 3 battery banks
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VICTRON ARGO FET Battery Isolator / 100A / 3 battery banks
119.95 EUR only €120.96
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ARGO FET Battery Isolator / 200A / 2 battery banks
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VICTRON ARGO FET Battery Isolator / 200A / 2 battery banks
126.95 EUR only €128.02
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ARGO FET Battery Isolator / 200A / 3 battery banks
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VICTRON ARGO FET Battery Isolator / 200A / 3 battery banks
149.95 EUR only €151.21
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ECS charge separators, 2 outputs
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QUICK ECS charge separators, 2 outputs
236.95 EUR only €238.94
(15)
ECS charge separators, 3 outputs
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QUICK ECS charge separators, 3 outputs
258.95 EUR only €261.13
(11)
BATTERY MATE 1602 IG Charging Distributor
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-9%
MASTERVOLT BATTERY MATE 1602 IG Charging Distributor
189.95 EUR €211.23 only €191.55
(4)
BATTERY MATE 1603 IG Charging Distributor
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-8%
MASTERVOLT BATTERY MATE 1603 IG Charging Distributor
214.95 EUR €236.69 only €216.76
(6)
ARGO 80-2 Isolation Diode / 80A / 2 battery banks
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VICTRON ARGO 80-2 Isolation Diode / 80A / 2 battery banks
54.95 EUR only €55.41
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ARGO 100-3 Isolation Diode / 100A / 3 battery banks
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VICTRON ARGO 100-3 Isolation Diode / 100A / 3 battery banks
74.95 EUR only €75.58
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ARGO 120-2 Isolation Diode / 120A / 2 battery banks
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VICTRON ARGO 120-2 Isolation Diode / 120A / 2 battery banks
84.95 EUR only €85.66
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ARGO 140-3 Isolation Diode / 140A / 3 battery banks
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VICTRON ARGO 140-3 Isolation Diode / 140A / 3 battery banks
99.95 EUR only €100.79
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Isolators
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QUICK Isolators
89.95 EUR from €90.71
(3)
Battery Isolator 70 A
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Battery Isolator 70 A
59.95 EUR only €60.45
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Battery Isolator 120 A
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Battery Isolator 120 A
99.95 EUR only €100.79
(2)
NAUTIC POWER - Diodes Distributor
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NAUTIC POWER - Diodes Distributor
99.95 EUR from €100.79
(13)
HD Automatic Charging Relay 500 A / 12V
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-15%
BLUE SEA HD Automatic Charging Relay 500 A / 12V
299.95 EUR €354.86 only €302.47
(3)
Automatic Charging Relay MINi ACR / 65A
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BLUE SEA Automatic Charging Relay MINi ACR / 65A
99.95 EUR only €100.79
(3)
Automatic Charging Relay / 120A
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-15%
BLUE SEA Automatic Charging Relay / 120A
124.95 EUR €147.44 only €126.00
(14)
Charging Relay 12 V / 140 A
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Charging Relay 12 V / 140 A
34.95 EUR only €35.24
(4)
Charging Relay 24 V / 140 A
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Charging Relay 24 V / 140 A
34.95 EUR only €35.24
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NAUTIC POWER - Diodes Distributor
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NAUTIC POWER - Diodes Distributor
99.95 EUR from €100.79
(13)
Battery Selector Switch, 4 Positions / 300 A
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BLUE SEA Battery Selector Switch, 4 Positions / 300 A
58.95 EUR only €59.45
(18)
Battery Selector Switch, 3 Positions / 300 A
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BLUE SEA Battery Selector Switch, 3 Positions / 300 A
59.95 EUR only €60.45
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Battery Switch, 350 A
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-16%
BLUE SEA Battery Switch, 350 A
57.95 EUR €69.50 only €58.44
(21)
Battery Selector Switch - 150 A / 300 A
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-20%
VETUS Battery Selector Switch - 150 A / 300 A
79.95 EUR €101.00 only €80.62
(2)
Battery Selector Switch - 150 A
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Battery Selector Switch - 150 A
49.95 EUR only €50.37
(7)
Battery Switch / 150A
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Battery Switch / 150A
24.95 EUR only €25.16
(3)
ADD A BATTERY Additional Battery Kit
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-16%
BLUE SEA ADD A BATTERY Additional Battery Kit
138.95 EUR €167.43 only €140.12
(9)
Additional Battery Kit ADD A BATTERY / 120A
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-21%
BLUE SEA Additional Battery Kit ADD A BATTERY / 120A
179.95 EUR €228.72 only €181.46
(5)

Battery Isolators


In such installations, it is important that the individual battery groups do not influence each other and are constructed appropriately.

This of course means that the charging system also has to be separated. However, the charging process is more complicated because either the alternator, generator or charger must recharge the batteries individually again.
When selecting diodes/relays, the max. possible charge current must be considered - for example, if your alternator is rated at 50-70 A, the power of the battery isolator would be rated at 70 A.

Method 1
Installing an isolation diode is the easiest thing to do. This robust solution provides the ability to charge up to three batteries simultaneously from an alternator and/or battery charger without connecting the batteries together. As a result, the charge current becomes isolated, meaning a mutual discharge of the starter batteries and the batteries that power the boat's lighting and bowthruster is prevented.
In "normal" isolators, this type of construction results in a voltage drop between 0.3 and 1.2 V. This sounds rather small - but the result is an incomplete charge, wherein the batteries are not charged 100%. The isolators that we supply are Schottky diodes, used with a voltage drop of 0.7 V.

Method 2
Isolators with integrated compensatory diodes. They reduce the voltage drop to almost 0.005 V. For these diodes, a cable from D + alternator on the diode-splitter needs to be installed.

Method 3
The use of electronic charging current distributors. The voltage drop in these distributors is negligible and additionally provides some of these devices with various settings for undervoltage and overvoltage protection, primary charge for the starter battery etc.

Method 4
The use of special relays, which are specially adapted for the use of a battery charge. These devices often offer additional features such as jump-start, undervoltage and overvoltage protection etc.

Method 5
The simplest version of charging current distribution is to use a battery changeover switch. In this case, however, there is a danger that incorrect operation in the switch position "both" (1 + 2) may lead to unintentional discharge of both batteries. 

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