Huawei HW-Li2Ah User Manual


Battery Backup Unit
Safety Precautions
To use the battery properly and safely, read the safety precautions carefully before using
the battery and strict
Basic R
Do not disassemble the battery witho
contact the authorized service center.
Do not change the structure
without prior authorization
nmental Requirements
Keep the battery away from water sources or damp areas.
Install the battery in strict compliance with the requirements of suppliers.
Do not place any object on the battery. It is recommend
at least 10 cm around the battery for heat dissipation.
Do not place the battery near any inflammable materials such as foams.
During the installation, keep the battery aw
sources such as electric heaters and candles.
During the installation, keep the battery away from electric appliances that generate
strong m
Instructions for Use
Fully charge the battery when you use it for the first time. If the battery is out of power,
charge it immediately. If you do not plan on using the battery for a long time, fully
charge it, and then charge it at least once per three months (for the 2 Ah battery) or six
months (for the 4 Ah battery). Otherwise, the battery will be damaged.
User Guide
ly observe these precautions when using the battery.
agnetic or electric field, such as microwave ovens, refrigerators, and mobile
ut permission. In the case of a battery fault,
, safety design, or performance design of the battery
ay from heat sources or exposed fire
ed that you reserve a space of


Table of Contents

Summary of Contents for Huawei HW-Li2Ah

  • Page 1 Battery Backup Unit User Guide Safety Precautions To use the battery properly and safely, read the safety precautions carefully before using the battery and strict ly observe these precautions when using the battery. Basic R equirements Do not disassemble the battery witho ut permission.
  • Page 2: Packing List

    If the batter y is out of power and left uncharged for a long time, it will fall into a deep ischarge state, which will cause a permanent damage to the battery cell. If the attery is damaged, hand it over to the certified recycling station. The battery has the discharge protection function.
  • Page 3 Overview Introduction The backup battery unit is a lithium ion battery for indoor use only. It provides the backup power solution for multiple ONTs and its input voltage is 11.1 VDC. The backup battery unit works as follows: When the mains supply is no rmal, the battery is in the backup state, and the charger supplies power to an ONT.
  • Page 4 Connector and Port 3.2.1 Battery Connector and Port The battery provides one connector and two ports, as shown in the following figure. DC IN DC OUT Table 3-1 Functions of the battery connector and ports Connector/Port Function DC OUT A DC output connector, connected to the power input port of an connector ONT.
  • Page 5 Battery Monitoring Cable The battery also provides a battery monitoring cable with SIP-2.5mm/4P connectors at both ends. The battery monitoring cable is used to monitor the working status of the backup battery unit in real time. Battery Status Information Monitored on the OLT The battery is being The CHG LED is on (green).
  • Page 6 Installation Guide Fastening the Battery The battery can be placed onto a workbench or mounted onto a wall. There are two mounting holes at the back of the battery, with a spacing of 90 mm. To wall-mount the battery, do as follows: Step 1 Secure two M3 mounting screws into the wall using a scre wdriver.
  • Page 7: Connecting Cables

    Connecting Cables The following figure shows the cable connections of the backup battery unit. Before connecting cables of the backup battery unit, switch off the power of the ONT. Battery Charger AC power cable Power plug Power socket DC power cable Battery monitoring cable To connect the cables, do as follows: Step 1...
  • Page 8: Troubleshooting

    Troubleshooting Fault Troubleshooting Method The CHG LED is off when the Check whether the charger matches the batter charger charges the battery. Check whether the mains supply is normal. Check whether the battery is fully charged. The backup battery unit fails to Check whether the battery is exhausted.
  • Page 9: Technical Specifications

    Capacity Voltage/ Output ns (Width Full Charge Current Voltage x Depth x Height) Discharge Cycles (in Normal Us HW-Li2Ah 2 Ah About 13.8 150 mm x at least 300 0.25 kg V/2.5 A 100 mm 50 mm HW-Li4Ah 4 Ah About 0.45 kg...
  • Page 10 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...
  • Page 11: Warranty Card

    Warranty Card Thank you for choosing Huawei Technologies Co., Ltd. – a leading telecom solution provider. To get better services, please read this warranty card carefully, fill in the required information and preserve this card in good condition. Your Name.
  • Page 12: Limited Warranty

    In any case that is not covered by this limited warranty or should the warranty expire, Huawei shall charge for the service(s) claimed for the products if the product is still remediable.

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