Smart Battery Protect 12/24V-220A

Victron Energy's Smart Battery Protect 12/24V-220A is an intelligent battery cut-off switch designed to protect batteries from excessive discharge. It disconnects non-essential loads before the battery is fully drained, preventing potential battery damage and ensuring enough power remains to start the engine. It can also be used as an on/off switch for the entire system.

The main difference is the built-in Bluetooth connectivity of the Smart Battery Protect. This feature allows easy programming of the turn-on and turn-off levels via the VictronConnect app on a smartphone or tablet. The standard Battery Protect models, by contrast, are programmed via a PROG pin to GND and use a 7-segment LED display to indicate the selected setting.

The Smart Battery Protect 12/24V-220A can handle a maximum continuous charge current of 220 amperes. This is the highest-rated model in the Smart Battery Protect series.

This Smart Battery Protect can handle a peak current of up to 600 amperes for a maximum duration of 30 seconds.

The Smart Battery Protect 12/24V-220A operates within a voltage range from 6V to 35V DC.

To protect sensitive loads, the Smart Battery Protect automatically disconnects the load if the continuous voltage exceeds 16.3V for a 12V system, or 32.6V for a 24V system.

Yes, the Smart Battery Protect is spark-resistant. It uses MOSFET transistors instead of relays, which eliminates sparking during switching.

Default thresholds for load disconnection are 10.5V for a 12V system or 21V for a 24V system. Default thresholds for load reconnection are 12V for a 12V system or 24V for a 24V system.

The alarm output is activated if the battery voltage drops below the predetermined disconnect level for more than 12 seconds. This delay prevents false alarms, for example during engine start-up. The alarm output is a short-circuit-protected open-collector output, connected to the negative rail, with a maximum current of 50 mA. It is typically used to activate a buzzer, LED indicator, or relay.

The Smart Battery Protect 12/24V-220A has dimensions of 62 x 123 x 120 mm (height x width x depth) and weighs 0.8 kg.

The Smart Battery Protect electronics are rated IP67 (potted), meaning they are protected against temporary immersion in water. The connections, however, are rated IP00, meaning they are not protected against water or foreign objects and require adequate protection during installation.

It is recommended to install the Smart Battery Protect in a well-ventilated area, preferably near the battery (within a maximum distance of 50 cm). However, it should not be installed directly above the battery due to possible corrosive gases. It is also important to choose an appropriate cable size and length to match the load.

The Smart Battery Protect automatically detects the system voltage (12V or 24V) only once during the first power-up. The selected voltage is then stored, and subsequent automatic detection is disabled. If you reuse the device in an installation with a different voltage, you can reset this detection via the programming pin or the VictronConnect application.

Yes, an appropriately sized fuse must be inserted in the cable between the battery and the Smart Battery Protect, in accordance with local regulations. Additionally, the ground cable (GND) must be protected; a 300 mA fuse is sufficient.

A remote on/off switch can be connected between the two pins of the 2-pin remote terminal. Alternatively, the terminal labeled REMOTE can be pulled high (connected to the battery positive) to turn the device on, or left floating to turn it off.

No, it is strictly forbidden to connect inverters or inverter/chargers directly to the Smart Battery Protect DC inputs. Reverse current could flow and damage the device. If you need to control an inverter or inverter/charger via the Smart Battery Protect, you must use the inverter or inverter/charger's remote control port.

Yes, the Smart Battery Protect is compatible with lithium-ion batteries. It features a special configuration mode that allows control via an external battery management system (BMS), such as Victron Energy's VE.Bus BMS. In this mode, the BMS can directly command load disconnection when required.

The Smart Battery Protect's turn-on and turn-off thresholds can be programmed very easily via the VictronConnect app thanks to its integrated Bluetooth connectivity. You can configure any desired level. Alternatively, you can set one of the nine predefined levels using the programming pin (PROG pin).

Yes, the Smart Battery Protect can be used as a charge switch between a battery charger and a lithium-ion battery. However, it is important to note that the BatteryProtect is a unidirectional device and is not designed for reverse currents from charging sources. The unit must be oriented so that current flows in the intended direction, from the input (IN) to the output (OUT).

No, it is strictly forbidden to connect inverters or charger/inverters directly to the Smart Battery Protect's DC inputs.

The Smart Battery Protect is a unidirectional device, designed to manage current in only one direction at a time (either to a load or from a charger). Current can only flow from the IN terminal to the OUT terminal. A direct connection with an inverter or charger/inverter could result in reverse current and damage the device.

If you want to control an inverter or charger/inverter using the Smart Battery Protect, you must use the Battery Protect to control the inverter or charger/inverter via its remote control port.