Question 1

Will this isolator be able to handle a mech man 350amp ho alternator feeding two rockford fosgate 1,000 monoblock amps at 1 ohm with two kinetic batte

Accepted Answer

85amps to each 1000watt amplifier is plenty..... you want 14.4 volts steady.... i would start with a capacitor before this?? Is someone messing with me??? i am the only one that gets this... besides the man asking the question???? why is it wired for a full OHM? It should be fine at a half OHM!!

Question 2

Will this work on my fishing boat? I have two batteries..

Accepted Answer

Most boats will have a battery selector switch.  #1 battery, #2 battery, Both batteries.  If you do not have a selector switch this can be used to charge both batteries while the engine runs, but with the engine off you can draw down one (stereo, trolling motor, etc.) while still not affecting your ability to start with the other battery.  How the batteries are wired (in parallel) will determine how your system operates.  To use this relay you need to split the system, for example 1 house battery, 1 starting battery.  The manual switch will still give you more control over your system, if you remember to use it.

Question 3

Isolator becomes hot after a about 30 minutes of activation.

Accepted Answer

There is no question mark here so there is no answer...only questions.  The device is a relay, the 12-volt coil is the only constant heat producer and, if energized by 12-volts, should not generate much heat.  The capacity, 80-amps, is a maximum for the relay contacts and connections, exceeding it or maintaining it constantly might generate some heat.  If the device is mounted near the engine, or in the sun, it could be warm from the environment.  What is "hot."  Are all the connections tight?  Is the load near the maximum 80-amps?  Is the coil seeing more than 12-volts?  Are the wires involved in the 80-amp circuit gauged large enough to handle the current?  And, you may have a faulty device.

Question 4

Will this allow the alternator to charge main and auxilary battery while car is on ??

Accepted Answer

Yes.  Properly installed the device separates the main battery from the auxiliary battery when the engine is off.  When on, both batteries are charged.

ASIN	B001HC6UJ0
Best Sellers Rank	#99,769 in Automotive ( See Top 100 in Automotive ) #148 in Automotive Replacement Accessory Power Relays
Brand	STINGER
Brand Name	STINGER
Coil Voltage	12 volts
Connector Type	Screw
Contact Current Rating	80 A
Contact Material	Silver
Contact Type	Normally Open
Current Rating	80 A
Customer Reviews	4.7 out of 5 stars 1,514 Reviews
Global Trade Identification Number	00609098796026
Included Components	Relay^Manual
Item Highlight	Protects starting charge while running car audio, automatic switching to auxiliary bank, suits truck RV and marine setups
Item Type Name	Battery Relay
Item Weight	0.27 g
Manufacturer	Stinger
Maximum Switching Current	80 A
Maximum Switching Voltage	12 volts
Minimum Switching Voltage	12 volts_of_direct_current
Model	SGP38
Mounting Type	Limited mount
Number of Items	1
Number of Terminals	2
Operation Mode	Off
Part Number	SGP38
UPC	609098796026
Unit Count	1 Count
Warranty Description	1 YR Manufacture
Wattage	960 watts

Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK

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