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Orders over $100 ship free within the contiguous USA

Victron Energy SKU: BPR110048000

Victron Energy Smart BatteryProtect 48V-100A

Protects the battery against excessive discharge and can be used as a system on/off switch. The Smart 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. The on/off input can be used as a system on/off switch.

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Free Delivery Orders over $100
Tech Support USA based

Bluetooth: programming made easy
When using Bluetooth to program the Smart BatteryProtect any required engage/disengage levels can be set. Alternatively, one of nine predefined engage/disengage levels can be set with the programming pin (see manual). If required, Bluetooth can be disabled.

Instant Readout
VictronConnect can display the most important data of the Smart BatteryProtect on the Device List page without the need to pair with the product. This includes visual notifications of warnings, alarms, and errors that enable diagnostics at a glance.

A special setting for Li-ion batteries
In this mode the BatteryProtect can be controlled by the VE.Bus BMS.

Note: the BatteryProtect can also be used as a charge interrupter in between a battery charger and a Li-ion battery. See connection diagram in the manual.

Ultra-low current consumption
This is important in case of Li-ion batteries, especially after low voltage shutdown.
Please see our Li-ion battery datasheet and the VE.Bus BMS manual for more information.

Over voltage protection
To prevent damage to sensitive loads due to over voltage, the load is disconnected whenever the DC voltage exceeds 64V.

Ignition proof
No relays but MOSFET switches, and therefore no sparks.

Delayed alarm output
The alarm output is activated if the battery voltage drops below the preset disconnect level during more than 12 seconds. Starting the engine will therefore not activate the alarm. The alarm output is a short circuit proof open collector output to the negative (minus) rail, max. current 50 mA. The alarm output is typically used to activate a buzzer, LED or relay.

Delayed load disconnect and delayed reconnect
The load will be disconnected 90 seconds after the battery voltage drops below the preset level. If the battery voltage increases again to the connect threshold within this time period (after the engine has been started for example), the load will not be disconnected.
The load will be reconnected 30 seconds after the battery voltage has increased to more than the preset reconnect voltage.

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Same-Day Shipping

Most orders placed before 1:00 PM PST on business days ship same day from our California warehouse. Expedited overnight and 2-day options available at checkout.

Free Delivery

Take advantage of free standard shipping on orders over $100. Only available for shipping addresses in the Contiguous United States.

Returns & Warranty

We offer a 30-day return policy for unused items in original packaging. Manufacturer warranties apply to all products.

Not sure this is the right product?

Our USA-based technical team can help you size your system. Mon-Fri 7:30AM to 4:00PM PST.

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