HEFEI ECOLITE ENERGY CO., LTD.
| Payment Terms | L/C,T/T |
| Supply Ability | 5000 Units per month |
| Delivery Time | 1-2 months |
| Packaging Details | Carton Pallet Container |
| Switch Function | Standard |
| Supports Serial Number | 8S~24S, 26S~72S |
| Balancing Current | 200 mA |
| Operatingtemperaturerange | -20°C to 60°C |
| Weight | 250 grams |
| Undervoltage Protection | Yes |
| Balance Function | Support, passive balancing |
| Operating Temperature | -30℃~75℃ |
| Brand Name | Ecolite/OEM/ODM |
| Model Number | YKN-BMS4S |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 5000 Units per month |
| Delivery Time | 1-2 months | Packaging Details | Carton Pallet Container |
| Switch Function | Standard | Supports Serial Number | 8S~24S, 26S~72S |
| Balancing Current | 200 mA | Operatingtemperaturerange | -20°C to 60°C |
| Weight | 250 grams | Undervoltage Protection | Yes |
| Balance Function | Support, passive balancing | Operating Temperature | -30℃~75℃ |
| Brand Name | Ecolite/OEM/ODM | Model Number | YKN-BMS4S |
| Place of Origin | China | ||
| High Light | 4S LiFePO4 battery protection board ，Bluetooth BMS with CAN RS485 ，150A smart BMS for energy storage | ||
Product Overview
The YKN-BMS4S is an intelligent battery management system (BMS) protection board designed specifically for 4‑series lithium iron phosphate (LiFePO4) battery packs. Integrating advanced hardware protection, active balancing, and multiple communication interfaces—including Bluetooth, RS485, and CAN—it provides comprehensive monitoring and control for small to medium energy storage systems, 12V lead‑acid replacement batteries, solar street lights, and other low‑voltage applications. Its compact design, low power consumption, and flexible parameter configuration make it an ideal choice for OEMs and system integrators seeking reliable, smart BMS solutions.
Key Functional Features
4S LiFePO4 Dedicated Design – Optimized for 4‑series LiFePO4 cells with precise voltage thresholds and protection logic.
Comprehensive Hardware Protections – Overvoltage, undervoltage, overcurrent, short circuit, high temperature, and low temperature safeguards ensure battery safety in all operating conditions.
Intelligent Cell Balancing – Configurable balance start voltage and voltage difference; supports charging balancing or static balancing to maintain cell uniformity and extend pack life.
Multi‑Point Temperature Monitoring – 4 channels for battery cell temperature sensing plus 1 channel for power device temperature monitoring, enabling proactive thermal management.
Versatile Communications – Integrated Bluetooth for local mobile monitoring, plus RS485 and CAN bus for integration with inverters, displays, and remote management systems.
Heater & Buzzer Support – Reserved interfaces for optional heating pads and audible alarms, allowing adaptation to cold environments and fault notification.
Ultra‑Low Power Consumption – Sleep mode reduces current draw to <300µA, preserving battery charge during long idle periods.
Scalable Architecture – Supports series and parallel connection of multiple BMS units, enabling larger battery banks with unified management.
Ideal Applications
Small to medium energy storage systems (ESS)
12V LiFePO4 drop‑in replacements for lead‑acid batteries
Solar street light battery packs
Electric mobility (scooters, golf carts, low‑speed vehicles)
Telecom backup battery packs
Marine and RV auxiliary battery banks
Any 4‑series LiFePO4 battery requiring smart monitoring and protection
Customization & Integration Support
We offer tailored BMS solutions including parameter presets (voltage thresholds, balance settings), communication protocol adjustments, connector types, and enclosure options. Our engineering team provides technical documentation, configuration software, and integration support to ensure seamless compatibility with your battery pack design.
| Technical parameters | |||
| Basic parameters | |||
| Cel specifications | 4 series of lithium iron phosphate cells | ||
| Interface type | Charge and discharge are both at the same port | ||
| Charging Voltage | 14.6V | ||
| Cell voltage range | 9.6~15V | ||
| Continuous charging current | ≤150A | ||
| Continuous discharge current | ≤150A | ||
| Consumption of running | ≤25mA | ||
| Consumption of sleep | ≤300uA | ||
| Operating temperature | -30℃~75℃ | ||
| Size(L*W*H) | 160mm*95mm*25mm | ||
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2014
Total Annual:
10,000000-15000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Hefei Ecolite Energy Co., Ltd., founded in 2014,is a China leading manufacturer who specialized in R&D,production,sales and technology support of Lithium battery (LFP and LTO) and BMS. We provide full solution for your battery inquiry.One-stop service from battery design to delivery. ... Hefei Ecolite Energy Co., Ltd., founded in 2014,is a China leading manufacturer who specialized in R&D,production,sales and technology support of Lithium battery (LFP and LTO) and BMS. We provide full solution for your battery inquiry.One-stop service from battery design to delivery. ...
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