2 Battery 200 Amp Isolator

Description

200 Amp 2 Battery Isolator designed for dual battery systems in marine, RV, commercial, off-road, and auxiliary power applications. This 12V to 36V battery isolator allows simultaneous charging of two batteries while keeping the starting battery electrically separated from the auxiliary battery bank to help prevent accidental discharge.

Designed for use with Delcotron alternators, this heavy-duty battery isolator helps protect your vehicle’s starting system while supplying reliable charging power to auxiliary batteries and accessories.

Common Applications

• Dual battery systems
• Marine and boat electrical systems
• RV and camper battery setups
• Commercial and work truck auxiliary batteries
• Off-grid and mobile power systems

Key Features

• 200 amp battery isolator
• Compatible with 12V to 36V systems
• Allows simultaneous charging of multiple batteries
• Helps prevent discharge between battery banks
• Keeps starting battery isolated from auxiliary loads
• Suitable for flooded and AGM batteries
• Both batteries must use the same battery chemistry
• Sealed housing protects against oil, salt, gas, and water exposure
• Designed for harsh marine and commercial environments
• M10 stud terminal connections
• Designed for use with older GM / Delco (Delcotron-style) alternators
• Compatible with many 1985–2006 GM charging systems requiring an ignition connection terminal
• 2007 and newer GM vehicles with smart charging systems may require a battery separator or DC-DC charger instead

Specifications

• Voltage range: 12V to 36V
• Current rating: 200 amps
• Terminal type: M10 stud
• Length: 11″ / 280 mm
• Width: 4.5″ / 114 mm
• Height: 3.3″ / 83 mm
• Weight: 4 lbs / 1.8 kg
• Data Sheet: 303306 battery isolator specifications

Additional Information

Note: Not recommended for some newer smart alternator charging systems. Contact us if you are unsure about compatibility with your vehicle or charging setup.