Smart BMS for NFPP Sodium Ion Battery

1. What is the difference of BMS between LFP and SIB in Year 2026

A customized battery management system for NFPP Sodium Ion Battery was developed by us since 2026, to address the problems faced by existing LFP battery BMS, such as inaccurate SOC estimation, rapid lifespan degradation, and inability to fully utilize the performance of NFPP sodium ion battery. Therefore, the core value of BMS for NFPP Sodium Ion battery is essentially to ensure security, extend lifespan, and increase benefit.

Item	LFP BMS	NFPP BMS
Protected voltage range‌	2.5V-3.65V	2.0V-3.4V.The over-discharge/overcharge threshold has been lowered to fully release all available capacity.
SOC algorithm‌	Based on the battery voltage platform of LFP	Readjust voltage, current, and SOC curves, thus resolving the estimation error issue of a smoother voltage gradient for sodium batteries, make the error be controlled to ≤3%.
Equilibrium Strategy‌	Adapting to LFP battery’s deviation patterns,balancing current to match LFP battery consistency.	Bigger initial consistency deviation of NFPP Sodium Ion battery,the equalization current is 20% higher, and the trigger logic is more sensitive, which needs rapidly reducing the initial voltage drop.
Low temperature protection logic‌	At low temperatures, lockout discharge to prevent the degradation of LFP capacity.	Retaining the low-temperature discharge capability, Not lockout discharge @ -20℃, fully utilize the low-temperature performance advantages.
Safety protection threshold Voltage‌	LFP battery are prone to thermal runaway when overcharged, and their charging threshold is conservative.	It offers better thermal stability, and the overcharge threshold is increased by 0.1-0.2V to avoid wasting usable capacity.

1. Technical features of BMS both for 12V sodium ion battery and 24V sodium ion battery
2. Features and advantages

The newly designed 12V/24V BMS(160A-200A current, 1A active balancing, SOC error ≤2%) is used for 12V NFPP sodium ion battery and 24V sodium ion battery, meanwhile it makes 12V sodium ion battery or 24V sodium ion battery operate between -40℃to 80℃, its hardware is resistant to vibration and shock, and it meets the requirements of automotive-grade environmental adaptability.

• What are the benefits
• Active Balancing Management for longer service life.

With 1A active balancing function, The BMS can correct the voltage difference of NFPP Sodium ion cell. therefore, for each sodium ion cell, its consistency deviation is being controlled within 2%. By this way, the cycle life of NFPP sodium ion battery can be improved and increased by extra 25%.

• Max 200A continuous discharge current for high power output

With Automotive-grade MOSFET and chip, The BMS can work as 200A continuous discharge current even at -40℃,high current output without emergency trip, therefore such strong BMS combined with NFPP sodium ion cell technology into 12V sodium ion battery or 24V sodium ion battery, it can be used where high-power demands

• Ultra-Low Standby Power Consumption, double extend longest shelf life.

The standby power consumption of BMS for NFPP sodium ion battery is less than 20μA, while self-discharge rate of NFPP sodium ion cell is less than 0.7%/Month, which ensures both BMS and modules extra low power consumption during long-term storage, and double ensure the longest shelf life of 12V sodium ion battery or 24V sodium ion battery‌

• Smart Interconnection for various scenarios

There are optional blue tooth, GPS, LCD screen and breaker to smart interconnection, therefore, Battery voltage, temperature, and remaining power can be checked at any time. meanwhile BMS for NFPP sodium ion battery can support in parallel or in serial as you want.

1. Technical features of BMS for 48V sodium ion battery
2. Features and advantages

The newly designed 48V BMS supports 16 PCS NFPP Prismatic Sodium Ion Cells in serial, with 2A-5A active balancing function to ensure its SOC accuracy less than 3%, while to ensure voltage sampling around 1mV, and supports Bluetooth/WiFi/APP /OTA remote management. Therefore, it can help 48V sodium ion battery to operate between -40℃to 80℃, while meet the requirements of house-grade environmental adaptability, long service life and more profits

• What are the benefits
• Cell balancing management for longer service life.

With High-power bidirectional active balancing of 5A and optimized balancing strategy to address the usage characteristics of sodium ion batteries, active balancing with low current, to keep the cell voltage difference stably controlled within 30mV,  restore large voltage differences,and slow down sodium ion cell’s degradation, and extending cycles of 48V sodium ion battery by 30%, thus, extending overall battery life by over 3 years.

• Triple protection of BMS to make 48V sodium battery safest.

There are Three-level protection: cell-level monitoring + early warning of thermal runaway + hardware physical circuit breaker, it provides multiple protections against overcharge, over-current, high/low temperature, short circuit, and reverse connection, support thermal runaway warning, and are equipped with slow-blow fuses as the ultimate physical protection, ensuring household electrical safety.

• Ultra-Low Standby Power Consumption, double extend longest shelf life.

Optimized low-power design, standby power consumption is less than 1W, eliminating the need for additional energy storage. This results in tens of kilowatt-hours less electricity consumption per year, which can be sold or used for personal purposes, effectively increasing profits.

• Flexible parallel configuration to power large homes

It supports max 32 blocks in parallel expansion of multiple 48V sodium ion batteries, which is  adaptable to large-capacity home storage systems, meeting the full-load power outage backup needs of large homes. It is also compatible with most residential inverter brands on the market, allowing for rapid deployment without additional adaptation costs.

• Smart Operation, Real-time Status Monitoring and lowest Maintenance

It supports real-time collection of voltage, current, and temperature data for each sodium ion battery cell via LCD touch screen or blue tooth/ WIF/ 4G, high-precision SOC estimation with AI algorithm calibration, accurate display of remaining charge, most importantly, it supports OTA remote upgrades and cloud-based operation and maintenance, allowing parameter optimization without on-site debugging.