Low-Voltage Battery Systems
Low-Voltage Lithium-ion Battery System
Low-Voltage Lithium-ion Battery System
Key Features
Chemistry, protection and monitoring capabilities of our low-voltage battery system line.
High-Safety LFP Chemistry
Lithium iron phosphate (LFP) cells provide inherently stable, high-safety energy storage for critical backup power.
Long Cycle Life
Battery packs rated for up to 3000 charge/discharge cycles, reducing total cost of ownership over the system lifetime.
Intelligent BMS Monitoring
Real-time voltage, current, SOC/SOH monitoring with RS485 communication and cloud data upload on select models.
Comprehensive Protection
Overload, under-voltage, over-temperature and output short-circuit protection are built into every unit.
Charge Activation & Equalization
Supports charge activation/wake-up, charge equalization and charge current limiting to extend service life.
Parallel Expansion
ECB series batteries support parallel connection of up to 6 units with the same model machine for capacity expansion.
OEM & ODM Capabilities
Custom capacity, voltage platform, communication protocol and enclosure tailored to your project.
Custom Capacity & Energy
Battery capacity and energy rating produced to your specified backup time and load requirement.
Voltage Platform Selection
25.6V, 48V, 51.2V, 76.8V or other voltage platforms selectable to match your UPS or telecom equipment.
Communication Protocol
RS485, CAN or other communication protocols available for integration with your monitoring platform.
Custom Enclosure Dimension
Chassis dimensions produced to fit your rack, cabinet or equipment enclosure requirements.
Custom Branding & Marking
Customer logo and product marking printed to your brand specification.
Sampling & Volume Production
Small-batch sampling for qualification followed by scalable volume production once specifications are confirmed.
Technical Specifications
General specifications, model snapshot and the full parameter table across all 5 models.
| Battery Type | LFP (Lithium Iron Phosphate) |
|---|---|
| Rated Voltage | 25.6V, 48V, 51.2V or 76.8V (model dependent) |
| Cycle Life | ≥1500 to ≥3000 times (model dependent) |
| Communication | RS485 (select models) |
| IP Rating | IP20 (select models) |
| Operating Temperature (Discharge) | -20℃ to 60℃ |
| Parallel Capability | Up to 6 units in parallel (ECB series, same model) |
| Application | Communication base stations and standard UPS units, built-in or external battery configurations |
| Model | Rated Voltage | Energy |
|---|---|---|
| ECB4850R15S1P | 48V | 2.4kWh |
| ECB48102R15S1P | 48V | 4.9kWh |
| EFP7209Q1 | 76.8V | 0.67kWh |
| Custom | On Request | On Request |
| Model | ECB4850R15S1P | ECB48102R15S1P | EFP2409Q1 | EFP4809Q1 | EFP7209Q1 |
|---|---|---|---|---|---|
| Energy/kWh | 2.4 | 4.9 | 0.22 | 0.44 | 0.67 |
| Rated Capacity/Ah | 50 | 102 | 8.7 | 8.7 | 8.7 |
| Rated Voltage/V | 48 | 48 | 25.6 | 51.2 | 76.8 |
| Operating Voltage Range/V | 39~54.75 | 39~54.75 | 20~29.2 | 40~58.4 | 60~86.4 |
| Standard Charge Current/A | 25 | 51 | 1.7 | 1.7 | 1.7 |
| Max. Discharge Current/A | 50 | 102 | 50 | 50 | 50 |
| Number of Standard Box/pc | 1 | 1 | — | — | — |
| Dimension (L×W×H)(mm) | 440×400×130 | 440×602×131 | 151×65×200 | 282×65×196 | 302×65×205 |
| Weight/kg | 41 | 45 | 3.4 | 6.5 | 8.5 |
| Operating Temperature/℃ (Discharge) | -20~60 | -20~60 | -20~60 | -20~60 | -20~60 |
| Cycle Life/Times | ≥3000 | ≥3000 | ≥1500 | ≥1500 | ≥1500 |
| Communication | RS485 | RS485 | — | — | — |
| IP Rating | IP20 | IP20 | — | — | — |
| Battery Type | LFP | LFP | LFP | LFP | LFP |
| Backup Time/min | 60 | 60 | 10 | 10 | 10 |
| Max. Power/kW | 2.4 | 5.0 | 1.2 | 2.4 | 3.6 |
| Remark | — | — | Built-in battery | Built-in battery | Built-in battery |
Construction & Configuration
How the cell, BMS, enclosure and protection circuits come together in each battery unit.
Cell — LFP Chemistry
Lithium iron phosphate cells provide the energy storage core, chosen for thermal stability and long cycle life.
Battery Management System (BMS)
An onboard BMS handles voltage, current and temperature monitoring, cell balancing and protection functions.
Standard Chassis Enclosure
A standard rack or box-style metal chassis houses the cells and BMS for rack-mount or wall installation.
Communication Interface
RS485 (select models) provides data output for monitoring software and cloud data upload.
Protection Circuits
Overload, under-voltage, over-temperature and output short-circuit protection circuits safeguard the battery and connected load.
Terminals & Connectors
Power and communication terminals are arranged for straightforward installation and parallel connection.
Standards & Test Documentation
Safety protection, cycle life and communication/monitoring capabilities.
Multi-Layer Protection
High-precision voltage, current and temperature detection with multi-point temperature design prevents overcharge and high-current damage.
Up to ≥3000 Cycles
Long-life design supports up to 3000 charge/discharge cycles depending on model, reducing replacement frequency over the system lifetime.
RS485 & Cloud Upload
RS485 communication on select models supports data upload to a cloud monitoring system for remote status visibility.
Request a Quote for Low-Voltage Battery Systems
Send us your required voltage platform, capacity, communication protocol and quantity. Our team will review the specification and prepare a quotation for your project.