AIMS Power LFP12V100AREG 12V 100A Battery Voltage Regulator & Isolator for Lithium and DC Systems

The AIMS Power LFP12V100AREG is a solid-state battery voltage regulator and isolator designed to protect 12V DC battery systems by automatically disconnecting the power source whenever voltage falls outside a safe operating range. Compatible with lithium (LiFePO4), AGM, and other battery technologies, this regulator makes it possible to safely charge lithium batteries via an alternator by preventing overcharging during operation.

The unit continuously monitors input voltage and supplies power to connected loads when voltage remains within the 9.4–14.4V operating range. If voltage drops below 9.2V or rises above 14.6V, output power is immediately cut off, protecting both batteries and connected equipment. The regulator also functions as an isolator, automatically disconnecting loads when voltage is out of range to protect the main starting battery.

Over-Current Protection:

• When current exceeds 100A but remains below 125A, the relay disconnects after 1 minute
• When current exceeds 125A but remains below 150A, the relay disconnects after 10 seconds
• When current exceeds 150A, the relay disconnects immediately
• Once current returns to the operating range, the regulator automatically resets after 2 minutes

Key Features:

• Solid-state technology for reliable, long-lasting protection
• Voltage input range: 9.4–14.4V DC
• Output cutoff: Below 9.2V or above 14.6V
• 100 amp continuous output current
• 2-wire terminal configuration for simple, straightforward installation
• Compatible with vehicles, wind, hydro, and other 12V off-grid systems
• Compact design: 5.75" L x 4.75" W x 2.125" H
• Lightweight at approximately 1 lb

The LFP12V100AREG's compact form factor and simple screw-terminal 2-wire hookup make it easy to integrate into existing 12V setups including RVs, overland vehicles, marine applications, and renewable energy systems. It is an essential component when pairing lithium batteries with standard alternators or mixed battery bank configurations.