BoostLi Energy Storage Module ESM-48100B1
User Manual
Copyright © Huawei Technologies Co., Ltd.
1 Product Description
1.1 Product Overview
The ESM 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.
The ESM 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.
Table 1-1 Nominal ESM voltage and capacity
Features
Parallel connection for power expansion: The maximum power (P) of N ESMs
connected in parallel can reach 24 kW. For details, see 2.1 Parallel Connection Mode.
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: The ESM can be connected in parallel with lead-acid batteries.
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: EN 55032/CISPR32, Class A
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