Victron Battery Balancer - BBA000100100

Performance & Electrical Specifications

• Input Voltage Range: Up to 18 V per battery, 36 V total
• Turn-on Level: 27.3 V +/- 1%
• Turn-off Level: 26.6 V +/- 1%
• Current Draw (When Off): 0.7 mA
• Midpoint Deviation to Start Balancing: 50 mV
• Maximum Balancing Current: 0.7 A (when deviation > 100 mV)
• Alarm Trigger Level: 200 mV
• Alarm Reset Level: 140 mV
• Alarm Relay: 60 V / 1 A normally open
• Alarm Relay Reset: Two terminals available to connect a push button
• Over Temperature Protection: Yes

Environmental & Operating Specifications

• Operating Temperature: -30 to +50 °C
• Humidity (non-condensing): 95%

Mechanical Specifications (Enclosure)

• Colour: Blue (RAL 5012)
• Connection Terminals: Screw terminals 6 mm² / AWG10
• Protection Category: IP22
• Weight: 0.4 kg
• Dimensions (h x w x d): 100 x 113 x 47 mm

LED Indicators

• Green LED: Balancer is active (battery voltage > 27.3 V)
• Orange LED (Lower): Lower battery leg active (deviation > 0.1 V)
• Orange LED (Upper): Upper battery leg active (deviation > 0.1 V)
• Red LED: Alarm (deviation > 0.2 V). Remains on until deviation reduces to < 0.14 V or system voltage drops below 26.6 V.

Standards & Compliance

• Safety: EN 60950, CSA/UL 62368-1
• Emission: EN 61000-6-3, EN 55014-1
• Immunity: EN 61000-6-2, EN 61000-6-1, EN 55014-2
• Automotive Directive: EN 50498

Installation Requirements

• Mounting: Must be installed on a well-ventilated vertical surface close to (but not directly above) the batteries.
• Wiring: Use at least 0.75 mm² wire for negative, positive, and midpoint connections. For UL compliance, fuse wires near the batteries with a 10A DC-rated fuse.
• Scalability: For 48V systems, three balancers are used. Several balancers can be connected in parallel to manage large battery banks (typically one balancer per three parallel 200 Ah strings).