Cole Hersee 48090-BX Heavy Duty Battery Isolator 90 Amp

The Cole Hersee 48090-BX is a heavy-duty 90-amp battery isolator designed for DC negative ground electrical systems. This essential component allows two batteries to be charged simultaneously from a single power source while preventing cross-discharge between batteries.

Key Features:

• 90-amp continuous rating for reliable power management
• Isolates batteries to prevent the higher-charged battery from draining into the lower-charged battery
• Enables dual battery charging from a single alternator or charging source
• Heavy-duty construction for marine, RV, and commercial vehicle applications
• Designed for 12-volt DC negative ground systems

This battery isolator is ideal for vehicles and vessels with dual battery systems, ensuring your starting battery remains charged while allowing auxiliary batteries to power accessories. The diode-based design provides automatic isolation without requiring manual switching.