BatteryProtect 12/24V 1. Introduction The BatteryProtect disconnects the battery from non-essential loads before it is completely discharged (which would damage the battery) or before it has insufficient power left to crank the engine. It also provides an alternative to disable chargers without a remote on/off port to protect from over-voltage.
BatteryProtect 12/24V 2. Features The BatteryProtect offers a wide range of different features. These include: • Protection of the battery against excessive discharge and can be used as a system on/off switch. • 12/24V auto ranging. The BatteryProtect automatically detects system voltage one time only (can be re-triggered - see section Programming table [11]).
BatteryProtect 12/24V 3. Installation and wiring examples 3.1. Precautions and installation notes There are a few basic things to keep in mind when installing a BatteryProtect: 1. The BatteryProtect must be installed in a well-ventilated area and preferably close (max 50 cm) to the battery (but, due to possible corrosive gasses not above the battery!).
BatteryProtect 12/24V 3.2. Warning when connecting inverters and inverters/chargers Under no circumstances is it permitted to connect inverters or inverter/chargers to a BP via their DC inputs, a reverse current may flow that damages the BP. In case you want to control an inverter or inverter/charger via a BP, you must use the BP to control the inverter or inverter/charger via its remote port.
BatteryProtect 12/24V 3.3. Wiring examples This section contains various wiring examples to show all the possibilities of wiring. 3.3.1. BatteryProtect in a simple system The example below shows a BatteryProtect with the wire loop (default) between L and H of the remote terminal. When the wire loop is removed, the BP disconnects the load after 90 seconds.
BatteryProtect 12/24V 3.3.2. BatteryProtect remote on/off switch The below example shows a BatteryProtect in a simple system with a remote on/off switch wired to the remote terminals. This switch can be used, for example, to turn the system remotely on and off. The power consumption of the BatteryProtect is...
BatteryProtect 12/24V 3.3.4. BatteryProtect in a lithium system with external BMS and load disconnect output This wiring example shows a BatteryProtect wired into a lithium system that is controlled by an external BMS (Victron smallBMS with pre-alarm). This BMS has a load and a charge disconnect output that can be wired directly to the BatteryProtect H input of the remote terminal.
BatteryProtect 12/24V 3.3.5. Two BatteryProtects for load and charger control It is also possible to have several BatteryProtect in one system, for example, to control chargers and loads at the same time. If the BMS signals a cell undervoltage, the BP responsible for the load will disconnect the load from the battery to protect the battery from further discharge.
BatteryProtect 12/24V 4. Operation and programming 4.1. Operation modes The BatteryProtect has three operating modes, the appropriate mode can be selected via a programming procedure (see chapter Programming [10] • Mode A: Buzzer or LED mode (default). • Mode B: Relay mode.
• The battery positive must be connected to the IN terminal. Do not connect the OUT terminal yet. • The included ground wire must be connected to the battery minus and the GND terminal of the BatteryProtect 12/24V. • The wire loop in the remote on/off terminal block must be removed.
BatteryProtect 12/24V 5. Technical specifications 5.1. Technical specifications BatteryProtect BP-65 BP-100 BP-220 Max. continuous load current 100A 220A Peak current 250A 600A 600A Operating voltage range 6 - 35 V Current consumption When on: 1.5mA When off or low voltage shutdown: 0.6mA...
BatteryProtect 12/24V 6. Appendix 6.1. Error and Warning codes This appendix gives a list of error and warning codes and possible solutions. E1: Short circuit Short circuit protection is activated in the event of a short circuit, an overload condition or excessive inrush current - such as when attempting to directly power an inverter or inverter/charger.