Huawei 48V 100Ah Lithium Battery

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ESM-48100B4 is an energy storage unit composed of lithium batteries. It features better charge and discharge performance, longer service life, and less self-discharge loss than ordinary batteries. It consists of electrochemical cells, an energy storage management unit (ESMU), power and signal terminals, and mechanical parts. It can be used as an independent 48 V unit, supports the mixed use of old and new batteries as well as lithium and lead-acid batteries, and can collaborate with third-party power systems.

  • Parallel connection for power expansion: The maximum power (P) of N ESMs connected in parallel can reach 24 kW.
  • Application in class B environments with direct ventilation: The ESM can be used in indoor environments where the ambient temperature and humidity are not controlled or outdoor environments (with simple shielding measures such as awnings) where the humidity can reach 100%.
  • Support for third-party power systems: The ESM implements lithium battery self-management so that it can be used with third-party power systems.
  • Mixed use: In a Huawei power system, lead-acid batteries can be directly connected in parallel.
  • Maintenance-free: The maintenance-free feature in the use of the ESM reduces the costs of battery O&M and the frequency of site visits.
  • Long service life: The ESM service life is two to three times the life of common lead-acid batteries. The battery state of health (SOH) and state of charge (SOC) can be monitored online in real time. These features improve the reliability of site power backup.
  • EMC:
    • CE: EN55032/CISPR32, CLASS A
    • RE: EN55032/CISPR32, CLASS B
Tech Specs
Item Specifications
Nominal voltage 48 V DC
Equalized charging voltage 56.4 V DC
Float charging voltage 54.5 V DC
Max. charging/discharging current limit 100 A/100 A@35°C
Max. charging/discharging power 4800 W
Operating ambient temperature Charging: 0°C–45°C; Discharging: –10°C to 45°C
Relative Humidity 5%–95%
Atmospheric 61 kPa–113 kPa
Installation mode Installed in a 19-inch rack
Maintenance mode Maintained from the front
Altitude 0–4000 m (When the altitude ranges from 2000 m to 4000 m, the highest operating temperature decreases by 1°C for each additional 200 m.)
Ripple and noise ≤ 200 mV
IP rating IP20+
NOTE: If the IP rating decreases, the application scenario needs to be reviewed.
Dimensions (W x D x H) 442 mm x 396 mm x 130 mm (excluding mounting ears)
482 mm x 396 mm x 130 mm (including mounting ears)
Weight ≤45 kg

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