User Guide

⚠️ Safety Precautions

• !
  Professional Installation Recommended — Only Volt recommends having a qualified electrician perform the installation.
• !
  No Reverse Polarity — Connecting B+ to B- or reversing cell sampling cables will permanently damage the BMS.
• !
  Anti-Static Handling — Handle the BMS board with care. Avoid touching components directly.
• !
  Waterproof Your Installation — Keep all connections dry. Use proper IP-rated enclosures outdoors.
• !
  No Series Connection — Multiple Only Volt battery packs should NEVER be connected in series.

📦 Unboxing & Parts List

Your Only Volt battery pack ships with the following standard components:

• 1
  BMS Protection Board (Anayatech-1001-V1.0) — main battery management board
• 2
  Communication Board (Anayatech-1001-JKB) — for RS485/CAN/RS232 connections
• 3
  LED Board (XDZN-1001-LED) — SOC indicator display
• 4
  B+ Power Cable — red banana connector + M3×10 screw
• 5
  M5×10 Screws — 6 pieces for mounting
• 6
  On/Off Switch Wire (XH2.54_4P)
• 7
  Cell Sampling Cables (4 cables: Blue, Yellow, Red, Green)
• 8
  Communication Patch Cords — various connectors for BMS

🔌 Wiring Guide

Wiring Sequence (Power On)

• 1
  Connect B− (battery negative) to the BMS B− terminal first
• 2
  Connect cell sampling cables in ascending order: B0 → B1 → B2 → ... → B16
• 3
  Connect NTC temperature sensor cables to their ports
• 4
  Connect B+ (battery positive) last
• 5
  Connect load (inverter) and charger to P− and P+ terminals
• 6
  Close the on/off switch to activate — charge or press button to initialize

Disconnection Sequence

• 1
  Disconnect charger and load first
• 2
  Remove cell sampling cables in descending order: B16 → B15 → ... → B0
• 3
  Remove B− last

🔗 Inverter Connection

Only Volt batteries support communication with major inverter brands via RS485 or CAN protocols.

Compatible Inverters

• ✓
  Deye — RS485, SMA mode or PYLON protocol
• ✓
  SOFAR — RS485 or CAN communication
• ✓
  Growatt — RS485 or CAN protocol
• ✓
  Voltronic / Axpert — RS485 communication
• ✓
  PYLON TECH compatible — Lithium battery protocol mode

RS485 Connection

Default baud rate: 9600bps. Connect from BMS communication board RS485-1 port to inverter BMS/battery port using the included RS485 patch cord.

CAN Connection

Default rate: 500K. Use the CAN port on the communication board. Configure your inverter to "Lithium Battery" or "BMS" mode and select the appropriate protocol.

📱 BMS Meta App Setup

Download the App

• 1
  Search "BMS Meta" on Google Play Store (Android) or Apple App Store (iOS)
• 2
  Alternatively, scan the QR code on the BMS board label or visit www.anayatech.com
• 3
  Install and open the BMS Meta app on your smartphone

Connecting via Bluetooth

• 1
  Ensure the battery BMS is powered on (on/off switch closed)
• 2
  Open BMS Meta app → tap "Connect" → scan for devices
• 3
  Select your battery from the device list
• 4
  View live data: voltage, current, temperature, SOC, SOH, and protection status

What You Can Monitor

• 📊
  Individual cell voltages, overall pack voltage, charge/discharge current
• 🌡️
  Cell temperatures, environment temperature, MOS temperature
• 🔋
  SOC (State of Charge), SOH (State of Health), remaining capacity
• ⚙️
  Modify protection thresholds, toggle balance, adjust parameters (advanced)

⚡ First Activation & Capacity Learning

• 1
  After wiring, close the on/off switch to power on the BMS
• 2
  The BMS will show a low SOC initially — this is normal
• 3
  Discharge the battery fully until under-voltage protection triggers
• 4
  Charge the battery fully until over-voltage protection triggers
• 5
  The BMS will now have learned the true Full Charge Capacity (FCC)
• 6
  SOC readings will now be accurate for daily use

🔄 Parallel Battery Setup (Multi-Pack)

Only Volt batteries support up to 20 packs in parallel using the automatic dial (Auto DIP) feature.

• 1
  Set all DIP switches to OFF position on all BMS units
• 2
  Connect RS485 network cables: Main → Pack 2 (Link Port OUT → Link Port IN), Pack 2 → Pack 3, etc.
• 3
  Power on all battery packs
• 4
  Turn OFF the main BMS on/off switch — all packs should shut off
• 5
  Turn ON the main BMS — all packs will start simultaneously
• 6
  Wait ~20 seconds for auto address assignment to complete
• 7
  Main BMS will display average SOC; slave packs show only RUN indicator

🛠️ Maintenance Tips

• ✓
  Keep battery terminals clean and tight — check every 6 months
• ✓
  Ensure adequate ventilation — operating temperature -20°C to +75°C
• ✓
  Avoid exposing batteries to direct sunlight or rain
• ✓
  Monitor cell balance via BMS Meta app regularly
• ✓
  Perform full charge-discharge cycle every 3 months for optimal calibration
• ✓
  Store at 50–60% SOC if not in use for extended periods

🔍 Troubleshooting