SURE POWER 21023AGM Isolator 210A, 1 Input, 2 Battery Banks

Manufacturer

SURE POWER

Features & Benefits

• 210-amp capacity handles high-output alternators used in modern heavy-duty applications
• AGM-specific calibration provides the correct charging profile to extend battery life
• One-input, two-output design keeps the starter battery isolated from auxiliary loads
• Heatsink-cooled housing dissipates thermal energy during long, high-current charging cycles

Sure Power Battery Isolator

Multiple battery banks require a reliable method for charging without the risk of one dead battery draining the other. This Sure Power Battery Isolator addresses that need as a 210-amp unit designed to support the higher charging demands of AGM batteries in vehicles running both starting and auxiliary electrical systems. By managing alternator output to each battery bank independently, it prevents voltage loss and cross-discharge that can occur with relay-based isolators. The solid-state design maintains consistent charging without moving parts, reducing wear under vibration and continuous use. Built for high-current operation, this Sure Power 21023AGM isolator is well suited for trucks equipped with liftgates, inverters, refrigeration units, or other high-draw accessories that operate alongside a primary cranking battery.