Xantrex 125Ah Lithium-ion Battery with BMS Quickstart Guide

Important Safety Information

READ AND SAVE THESE INSTRUCTIONS

Electrical equipment shall be installed, operated, serviced, and maintained only by qualified personnel. Certain configuration tasks require consultation with your local utility and/or an authorized dealer. Servicing of batteries and the BMS shall only be performed or supervised by qualified personnel with knowledge of lithium-ion batteries and their required precautions. Qualified personnel possess training, knowledge, and experience in:

• Installing electrical equipment
• Applying applicable installation codes
• Analyzing and reducing hazards in electrical work
• Installing and configuring lithium-ion batteries
• Selecting and using Personal Protective Equipment (PPE)

Xantrex LLC assumes no responsibility for consequences arising from the use of this material.

⚠️ DANGER: HAZARD OF FIRE, ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate PPE and follow safe electrical work practices (e.g., NFPA 70E or CSA Z462).
• Equipment must only be installed and serviced by qualified electrical personnel.
• In case of fire, use only a Class ABC type (dry chemical) fire extinguisher. Water can be dangerous for energized equipment due to electrical shock risk.
• Always use a properly rated voltage sensing device to confirm all circuits are de-energized.
• Do not short-circuit the battery.
• Do not expose the battery to flames.
• Do not attempt to open or dismantle the lithium-ion battery. If damaged, do not touch corrosive electrolyte or powder. If battery content contacts skin or eyes, immediately flush with large amounts of clean water and seek medical help.
• Do not crush, puncture, or drop the battery.
• Do not install in environments where ambient temperature exceeds 113°F (45°C).
• Refer to the Safety Data Sheet when transporting this battery.

Failure to follow these instructions will result in death or serious injury.

⚠️ WARNING: HAZARD OF FIRE, ELECTRIC SHOCK, EXPLOSION, BURN, OR PERSONAL INJURY

• Do not connect other battery types to the system DC load or DC bus.
• Do not expose equipment to rain, snow, or liquids. Products are designed for indoor use only.
• The battery is heavy. Employ precautions and appropriate lifting techniques.
• Do not operate with damaged or substandard wiring.
• Do not replace battery fuses or system fuses yourself; seek qualified assistance.
• Do not obstruct air ventilation openings. Do not install or operate in compartments with flammable materials or locations requiring ignition-protected equipment.
• If the lithium-ion battery is damaged, it can release harmful gases. Ventilate the area if possible, but evacuate the vicinity immediately.

Failure to follow these instructions can result in death or serious injury.

ℹ️ NOTICE: RISK OF EQUIPMENT DAMAGE

• Only charge the Xantrex Battery with an approved charger. Contact Xantrex for details.
• Do not physically modify system devices, wiring harness, or accessories.
• Do not stand on the battery.
• Do not alter factory settings on system devices, including the BMS.
• Do not disassemble the Xantrex Battery or BMS; they contain non-serviceable parts.
• Do not operate or store the battery outside specified environmental limits.
• Do not charge the battery in ambient temperatures below freezing.
• Do not charge the battery above the recommended voltage.
• Do not allow the battery to be completely depleted.
• Do not disconnect the battery while it is being charged.
• Recyclable components must be recycled; non-recyclable components must be disposed of according to local, regional, and national environmental regulations.

Failure to follow these instructions can result in damage to equipment and may void the warranty.

Installation

ℹ️ NOTICE: RISK OF EQUIPMENT DAMAGE

• Do not connect multiple batteries in series. Parallel connection is permitted.
• The battery must be installed upright with the cable/terminal side up.

Failure to follow these instructions can result in damage to equipment and may void the warranty.

1. Check the battery for visible damage (cracks, dents, deformations). Ensure the top surface and terminals are clean, dry, and free of dirt and corrosion.
2. Ensure the 125Ah Battery is turned off. If the Power button LED is illuminated, press and hold the Power button for three seconds until the LED turns off.
3. Select and place the battery in a clean, cool, and dry location.
4. Prepare the following:
   • Terminal bolts sized M8 x 1.25 x 12mm (supplied)
   • Lock washers (supplied)
   • Flat washers (supplied)
   • Battery cables terminated with M8 (or 5/16") cable ring lugs (do not use stainless steel lugs)
   • DC fuse (100A, 32V) and fuse holder

⚠️ WARNING: HAZARD OF FIRE

Use only stranded, copper wire rated 75°C minimum. Ensure battery connections are tightened to a torque of 106 in-lb (12 Nm). Loose connections will overheat.

Failure to follow these instructions can result in death or serious injury.

5. Attach the negative (-) battery cable to the negative (-) battery power terminal. See the illustration below for proper stacking of terminal connections. Torque terminal bolt to 106 in-lb (12 N-m).
6. Install a DC fuse and fuse holder on a short battery cable for the positive side of the DC circuit. The fuse must: (a) be as close to the positive (+) battery power terminal as possible; (b) be rated for DC circuits; (c) be a Class T fuse.
7. Attach the fused battery cable to the positive (+) battery power terminal. See the illustration below for proper stacking of terminal connections. Torque terminal bolt to 106 in-lb (12 N-m).

Illustration Description: Terminal connection order from bottom to top: battery power terminal, cable ring lug, flat washer, lock washer, terminal bolt.

⚠️ WARNING: HAZARD OF FIRE AND EQUIPMENT DAMAGE

• Do not place washers between the battery's power terminal and the battery cable's ring lug, as this can cause excessive heating due to high resistance.
• Do not connect multiple batteries in series to achieve higher voltage, as this will damage the internal BMS. Parallel connection is permitted.

Failure to follow these instructions can damage the unit and/or equipment.

ℹ️ NOTICE: REVERSE POLARITY DAMAGE

Check cable polarity before making the final DC connection: positive must connect to positive, and negative to negative. Reversing the battery cables may damage the battery and void your warranty.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

8. Attach the positive (+) battery cable to the fused battery cable.

NOTE: When attaching more than one lug to each terminal, ensure at least 1/4" (6mm) of thread is available for securing the connection. Clock the ring terminal lugs so they do not interfere with their flat conducting surfaces. Use longer M8x1.25mm terminal bolts if necessary.

9. Turn the battery on and verify the voltage on the DC bus is approximately 12VDC (nominal).

Power Button and LED Indicator

The Xantrex 125Ah Battery features an LED indicator integrated into the Power button.

• Power button for On/Off/Alarm:
• The LED is off when the unit is turned off and battery power is disabled.
• The LED is on when the unit is on and battery power is enabled.

Battery State and LED Behavior:

Remote Panel

The Xantrex 125Ah Battery has a remote panel port next to the Power button. The remote panel device is available for 2, 4, and 6 battery groups (example shown is for a 2-battery group).

The remote panel device:

• Connects to a compatible battery or batteries.
• Is used to turn the battery on and off.
• Is equipped with LEDs that mimic the behavior of the LED on the battery.

Battery State and Remote Panel LED Behavior:

Battery Charging

Charge the battery by engaging power from the charging source when the battery's SoC is greater than 10% and battery power is engaged. If the SoC is less than 10% and the reserve shutdown event has occurred, press the Power button on the unit. While battery power is engaged, start charging from the charging source.

NOTE: Avoid using heavy loads during charging to prevent prolonged charging time or the system from transitioning to thermal protection mode.

To stop charging, disengage power from all charging sources. Do not turn off the unit to disconnect the battery while it is charging.

IMPORTANT: Perform a weekly full charge cycle to bring the battery SoC to 100% to maintain accuracy.

ℹ️ NOTICE: RISK OF EQUIPMENT DAMAGE

• Do not disconnect the battery while the system is charging.
• Fully charge the battery and turn off the BMS when the system is not in use for less than a month. Observe proper storage instructions from the battery manufacturer for long-term storage.
• Do not charge Lithium batteries in sub-freezing temperatures.
• Do not charge Lithium batteries above 14.6V.

Failure to follow these instructions can result in damage to equipment or battery.

Specifications

NOTE: Specifications are subject to change without prior notice.

Battery cells are recognized components under UL 1642 standard and representative cells have been evaluated to IEC 62619 standard.