Victron Smart BatteryProtect 48V 100A Disconnect

The Victron Smart BatteryProtect 48V 100A disconnects nonessential loads before a battery is excessively discharged, with Bluetooth programming.

Disconnecting nonessential loads rather than everything is the point, and it is what preserves the reserve for critical functions. A blanket low-voltage cutoff takes the navigation lights and the bilge pump with it. Protecting the bank by shedding only what can be spared is the more useful arrangement.

Engage and disengage thresholds are programmable over Bluetooth, or nine predefined profiles can be selected with the programming pin. The pin method matters because it works without a phone, which is useful during commissioning or if the app is not to hand.

Forty-eight volts at 100 amps suits a large system with electric propulsion or a substantial storage bank. Setting the thresholds correctly is what makes it work: too high and loads drop unnecessarily, too low and the protection acts after damage has begun. Explore more Relays, Combiners & Disconnects.

• Sheds nonessential loads, not everything
• A blanket cutoff takes the bilge pump too
• Programmable by Bluetooth or a pin without a phone
• Thresholds too low and protection comes too late