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S5700 Series Switches Hardware Description

This document provides an overall description of the S5700 hardware, helping you obtain detailed information about each chassis, card, power module, fan module, cable, and optical module.
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BAT-8AHA (Chargeable Lithium Battery)

BAT-8AHA (Chargeable Lithium Battery)

Product Support

Table 6-5 provides the product support for the BAT-8AHA battery.

Table 6-5 Product support for the BAT-8AHA battery

Battery Name

Product Support

BAT-8AHA S5700-LI-BAT Series


Figure 6-3 shows a BAT-8AHA battery.
Figure 6-3 BAT-8AHA battery


Table 6-6 describes the functions of a BAT-8AHA battery.

Table 6-6 Functions of a BAT-8AHA battery



Power redundancy

The BAT-8AHA battery can be installed in the battery slot at the rear of an S5700-LI-BAT switch to provide power redundancy. When the external power supply system fails, the battery powers the switch to ensure uninterrupted services.


The BAT-8AHA battery provides various protection functions, including charge overvoltage protection, charge overcurrent protection, discharge overcurrent protection, undervoltage protection, and short-circuit protection.

Alarm reporting The BAT-8AHA battery can report alarms on low-power state, low/high temperature, battery failures, and power supply time.
Command line configuration You can configure the power supply time alarm threshold for the BAT-8AHA battery and turn off the battery using commands.

Overtemperature protection

The battery enters the overtemperature protection state when the charge temperature is out of the range of -5°C to +55°C or when the discharge temperature is out of the range of -10°C to +65°C. The battery restores to the operation state when the charge temperature restores to the range of 0°C to 50°C or the discharge temperature restores to the range of -5°C to +60°C.

Visualized management

You can use the web-based management system to check the battery status and manage the battery.

In-service software upgrade In V200R005C00 to V200R010C00 versions, the lithium battery software can be upgraded using the upgrade battery-app command.
Hot swapping The battery is hot swappable.


Figure 6-4 shows the panel of a BAT-8AHA battery.
Figure 6-4 BAT-8AHA battery panel

1. Captive screw

2. Handle

3. Battery indicator

4: Battery switch button

  • The switch button is invalid when the battery is not installed in the switch.
  • If the switch is powered by an AC power supply system, you do not need to turn on the lithium battery by holding down this button after installing the battery in the switch. The lithium battery works in backup mode automatically after it is installed.
  • If the switch is not connected to an AC power supply system, install the lithium battery, and then hold down this button for 1s to turn on the battery so that the battery starts to power the switch.
  • You can hold down this button for 1s to turn off the lithium battery only when the switch has no AC power input.

Table 6-7 describes the indicator on the BAT-8AHA battery panel.

Table 6-7 Description of the BAT-8AHA battery indicator






  • The lithium battery is not connected to the switch.
  • The lithium battery is faulty or its temperature is abnormal.


  • Steady on: The lithium battery has been fully charged and is working in backup state.
  • Fast blinking: The lithium battery is supplying power to the switch.
  • Slow blinking: The switch is charging the lithium battery.


Table 6-8 lists specifications of a BAT-8AHA battery.

Table 6-8 Specifications of a BAT-8AHA battery



Dimensions (H x W x D)

40 mm x 100 mm x 205 mm (1.6 in. x 3.9 in. x 8.1 in.)


1.1 kg (2.43 lb)

Charge voltage range

10.8 V DC to 14 V DC

Discharge voltage range

9 V DC to 12.45 V DC

Maximum charge current

1.25 A

Maximum discharge power

80 W; typical: 45 W

Charge environment temperature

0°C to 45°C (32°F to 113°F)

Discharge environment temperature

-5°C to +50°C (23°F to 122°F)

Storage temperature

-20°C to +60°C (-4°F to 140°F)

Relative humidity 5% RH to 95% RH, noncondensing
Operating altitude 0-5000 m (0-16404 ft.)
Maximum storage time (full power, no charging) 6 months < 40°C (104°F); recommended temperature: 20°C to 30°C (68°F to 86°F)
Storage requirements
A lithium battery must be charged after the maximum storage time; otherwise, the battery service life decreases or the battery is damaged.
  • The storage environment must comply with ETS 300 029-1-1 and CLASS 1.2.
  • The storage environment must be free from acidic, alkaline, or other corrosive gases.
  • Keep a lithium battery away from direct sunlight and more than 2 m from heat sources.
  • Do not place a battery upside down and avoid collision or stress on the battery.

Rated capacity

8 AH
Life time > 4 years
The battery life time is obtained under the following condition: The temperature is 20°C to 30°C, and the discharge capacity of the battery exceeds 50% for no more than once a day.


  • EN55022
  • EN55024

Environmental standards



  • EN 60950-1: 2006
  • EN 62133: 2003
Transportation UN38.3

Part number

Updated: 2019-08-19

Document ID: EDOC1000013597

Views: 563089

Downloads: 14371

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