LA-series | 5.5kW 11kW

All-in-one Energy Storage System
Stackable5kWh–15kWh
LA-series All-in-one ESS | Techfine product

Main Feature

  • Pure sine wave output
  • PV priority, mains priority or battery priority
  • Grid-feed function is optional
  • Battery capacity is flexible for expanding if necessary
  • Using lithium iron phosphate battery pack, up to 10,000 cycles at 25°C

Product Details

A-Grade LiFePO₄ Battery Cells

Environmentally friendly and long-lasting, delivering up to 10,000 cycles at 25°C.

Flexible Matching Solutions

Supports multiple inverter and battery combinations for scalable power and capacity configurations.

EV Charging Support

Compatible with electric vehicle charging, making travel more convenient and environmentally friendly.

Multiple Power Supply Modes

Offers various priority modes between solar, grid, and battery; easily configured via panel or APP.

BMS Battery Management System

Advanced BMS provides precise data transmission, real-time protection, and stable system performance with multi-layer safety features.

Compatible with 99% of Appliances

Available in 5.5–11kW models, suitable for powering most household and small commercial electrical devices.

Technical Specifications

ModelLA5548SMHGLA11048SMHG
Rated Power5500VA/5500W11000VA/11000W
Input
Voltage230VAC
Voltage Range170-280VAC(UPS Mode) 90-280VAC(Inverter Mode)
Frequency Range50Hz/60Hz( Adaptive)
Output
Output Voltage230VAC±5%
Peak Power11000VA22000VA
Conversion Efficiency (maximum)0.98
Output Frequency50/60Hz±0.1%
Switching time10ms for Computer Equipment,30ms for Household Equipment
Output WaveformPure Sine Wave
Open Circuit Losses<55W<80W
Solar Charging And Mains Charging
PV Charging MethodMPPT
Max PV Input5500W2×5500W
MPPT Tracking Range90-500Vdc
MAX PV Charging Current100A150A
MAX AC Charging Current60A150A
MAX Charging Current100A150A
L×W×H610x170x370mm630x250x475mm
Battery Model
Battery Capacity5120WH11776WH
Battery Voltage51.2VDC51.2VDC
Battery TypeLiFePo4
Full Charge Voltage(FC)56V
Full Discharge Voltage(FD)42V
MAX Continuous Discharge Current100A200A
MAX Discharge Current120A(1 minute)230A(1 minute)
ProtectionBMS,Relay
Charging Voltage56V
Charging Current (recommended)50A(0.5C)115A(0.5C)
Charging Current (Max100A200A
L×W×H610X170X490mm630X250X525mm
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