Victron Energy Smart BatteryProtect Battery Isolator, 48V, 100A, Bluetooth

Overview

The Victron Energy BPR110048000 is a Smart BatteryProtect 48V-100A for managing DC loads on a 48V battery system. It disconnects non-essential loads before the battery is drawn down too far, helping preserve battery capacity for critical equipment and reducing the risk of damage from excessive discharge.

This unit handles 100 A continuous load current with a 250 A peak current rating and works across a 24 to 70 V operating range. It can also act as a system on/off switch, with Bluetooth setup through VictronConnect or nine preset engage and disengage levels through the programming pin.

For marine electrical systems, it is well suited to 48V house banks feeding equipment such as DC distribution, lighting circuits, electronics loads, refrigeration support circuits, or other non-essential loads that should drop out before the battery reaches a critical level. The electronics are potted to IP67, while the terminals are IP00, so the unit should be installed in a protected electrical area rather than an exposed deck or washdown location.

Key features

• 100 A continuous current rating with 250 A peak current for 48V DC load management.
• 24 to 70 V operating range for use with 48V battery systems and related DC installations.
• Bluetooth programming through VictronConnect for setting engage and disengage voltage levels.
• Instant Readout in VictronConnect shows key status information and warnings without pairing first.
• Load disconnects when DC voltage exceeds 64 V to help protect sensitive connected loads.
• Delayed alarm output activates after more than 12 seconds below the preset disconnect level, reducing nuisance alarms during brief voltage dips.
• Load disconnect delay is 90 seconds, with reconnect 30 seconds after voltage rises above the preset reconnect level.
• Short-circuit-proof open collector alarm output supports up to 50 mA for a buzzer, LED, or relay.
• VE.Bus BMS control mode supports Li-ion battery installations that use compatible Victron battery management equipment.
• M8 connections with 9 Nm mounting torque suit properly sized DC cabling and secure installation.

Installation and setup

The Smart BatteryProtect should be mounted close enough to the battery and DC distribution path to keep cable runs practical, while still leaving room for service access and proper cable support. The body measures 62 x 123 x 120 mm and weighs about 0.8 kg, so it can usually be fitted inside a battery compartment, electrical locker, or protected technical space.

The unit uses MOSFET switching rather than relays, so there are no relay sparks during switching. That matters in enclosed marine electrical spaces where vibration, confined routing, and repeated load cycling can make secure electrical layout especially important.

Electrical and system integration

The default thresholds are 42 V disengage and 48 V engage. These can be changed through Bluetooth, or set with one of the predefined levels using the programming pin. Current draw is very low, with Bluetooth on drawing about 1.9 mA when on and 1.7 mA when off or in low-voltage shutdown.

This product is for controlling DC loads and should not be treated as a replacement for correct fusing, cable sizing, or battery system design. It is not made for reverse current from charging sources, so installation position matters when it is used around chargers, alternator charge circuits, DC converters, or lithium battery systems.

Marine use on board

On a cruising boat, workboat, or fishing platform with a 48V battery bank, this unit helps separate non-essential DC loads from the equipment that needs reserve power. It is a good match for installations where battery protection, controlled shutdown, and simple voltage threshold adjustment are more important than manual switching alone.

Because the electronics are potted but the connections are not sealed, the best mounting location is a dry, protected electrical space with strain relief on the cables and enough clearance around the M8 terminals for safe inspection.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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