Shenzhen Billey Electrics Company Limited

we had already launched 48V Smart-Li (just after Huawei, ZTE), and it has been applicated by China Tower.

The function and application can be satisfy:
1, The site backup power expansion: by the mix used with Lead-acid battery in parralell.
2, The site energy storage: off-peak power consumption and peak-shaving by the Smart-li operation mode.
(1) Safe and reliable
●The intelligent lithium battery Pack has built-in aerosol fire fighting module for precise fire fighting
●Double-layer isolation between battery and inverter
●With input and output over-voltage, over-temperature, short-circuit and other protection functions
(2) Flexible adaptation
● Support any parallel connection of old and new battery packs
● Support parallel connection of battery packs of different capacities
●Support any parallel connection of different types of batteries (lead-acid, conventional battery pack, ladder battery pack)
● Support on-demand phased expansion
(3) Intelligent management
● Support "one-button" automatic startup
●Support independent control of output voltage and current, control of circulating current/bias current phenomenon
● Support automatic balance between battery packs
●Support local and online upgrade

The EnerSmart Telecom Li-ion Battery (EnerSmart Li) is designed for various 48Vapplication scenarios, and it is composed of prismatic LFP cells, intelligent battery management system(BMS), and bidirectional DC converter(BDC).The product features active control of the charge and discharge voltages to solve the bias current and circulating current issues inside battery packs when connected in parallel. Moreover, this product allows for mixed use of lithium and lead-acid batteries and can be used for smart peak shifting and off-peak power consumption to save customers' initial investment and thus enhance the income on investment.
APPLICATION SCENARIOS
New 5G telecom base station
High-power long-distance power supply Base station retrofit for 5G
other forms of telecom base stations:
traditional base station cabin, outdoor cabinet other 48V application scenarios
PRODUCT FEATURES
Support of mixed use of lithium and lead-acid batteries
Support of parallel connection of new and old lithium batteries Support of large current charging and discharging
Extended service life
Support of consistent-voltage long-distance power supply
Integrated with high-efficiency BDC allowing for active charge and discharge control
Standard rack-mounted installation design (3u size)，extremely high energy density
Support of remote monitoring and maintenance

Model#BS48V100, BS51.2V100
Battery Type: LFP
Rated Voltage: 48V, 51.2V
Rated Capacity: 100ah, 100ah
Rated energy wh: 4800, 51200
Rated discharger voltage V：56.4
Discharging Voltage Range M...40-58.(consistent voltage..
voltage. output Power [W]: 4800
Max. Charging Current[A]: 100
Max. Continuous Discharging Current [A]: 100
Discharging End Voltage [v]: 40, 43.2
cycle Life [Times]: 1000/4000 (25 ℃,0.5C,80%DOD,80%EOL)
Balance Method: Passive balancing
Dimensions [W'D'H, mm]: 442*400*133
weight [kg]: 39~42
lP Grade: IP 20
Communication: RS485'1, CAN 1, and dry contact 2
. Parallel Connection: Up to 32 packs (CAN)/16 packs (RS485)
Working Temperature [℃]: Charging:0 to +45; Discharging: -20 to +45
Storage Temperature [℃]: 0 to+40
Relative Humidity: 5%-95% RH (non-condensing)