Can this 12V sodium-ion battery replace a lead-acid starting battery?

It can be used as a replacement in compatible starting applications. Before replacement, check the CCA, battery dimensions, terminal layout, charging voltage, and operating temperature .

How does this sodium-ion battery perform in cold weather?

It retains more than 80% capacity at −20°C and supports discharge operation down to −30°C , making it suitable for cold-weather starting applications.

Can I use an existing 12V lead-acid charger?

Compatibility depends on the charger's output voltage and charging profile. Check that the charger is suitable for the battery's 15.6V recommended charging voltage before use.

How long does this 12V 100Ah sodium-ion battery last?

The battery supports ≥2,500 cycles at 1C, 100% DoD and ≥4,000 cycles at 0.2C, 100% DoD under specified test conditions.

Does this sodium-ion battery have a built-in BMS?

Yes. The integrated BMS provides protection against overcharge, overdischarge, overtemperature, and short circuits , while supporting cell balancing.

51.3V 100Ah Sodium ion Battery for Home Energy Storage

Home » Products » Sodium-ion Battery » Sodium ion Battery » 51.3V 100Ah Sodium ion Battery for Home Energy Storage

51.3V 100Ah Sodium ion Battery for Home Energy Storage

5.13kWh nominal energy
Up to 200A maximum discharge current
8,000 cycles @ 0.5C, 90% DOD, 25±2°C
-40°C to 60°C discharge temperature range
CAN / RS485 communication and up to 20 units in parallel


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Product Description

51.3V 100Ah Rack-Mounted Sodium-Ion Battery

The 51.3V 100Ah rack-mounted sodium-ion battery delivers 5.13kWh of nominal energy for residential energy storage, telecom backup, computing facilities, and other indoor energy storage applications.

With up to 200A maximum discharge current, an 8,000-cycle design, and a discharge temperature range from -40°C to 60°C, it provides reliable power for applications requiring high-rate output and operation across a wide temperature range.

Built for Modular Energy Storage Systems

Designed for flexible system integration, the battery supports CAN and RS485 communication for connection with compatible energy storage equipment.

Up to 20 battery modules can be connected in parallel, allowing nominal battery energy to scale from 5.13kWh to 102.6kWh. Multiple protection functions help monitor voltage, temperature, short circuits, communication faults, and other operating conditions for stable system operation.

Built for Modular Energy Storage Systems

Why Choose This Sodium-Ion Battery?

High-Rate Power Output

The battery supports up to 200A maximum discharge current, making it suitable for energy storage and backup applications that require stronger short-term output. It provides reliable power support for systems with higher load demands.

Easy Inverter Integration

With CAN and RS485 communication, the battery is designed for integration with compatible energy storage inverters and control equipment. This helps simplify system communication and supports smoother deployment in modular energy storage projects.

Flexible Parallel Expansion

Up to 20 battery modules can be connected in parallel, allowing users to expand storage capacity as project requirements grow. A single 5.13kWh module can be scaled into a larger battery bank for more flexible energy storage planning.

Reliable BMS Protection

Multiple built-in protection functions monitor important operating conditions, including voltage, temperature, short circuits, and communication status. This helps improve operational safety and supports stable long-term performance in energy storage applications.

Specification

Model	NA51100
Nominal Voltage	51.3V
Nominal Capacity	100Ah
Energy	5130Wh
Charge Voltage	60V
Discharge Cut-off Voltage	39.6V
Charge Current	≤100A
Constant Discharge Current	200A
Cycle Life	8000 cycles (0.5C, 90% DOD, 25±2°C)
Dimension	560800140 mm
Weight	80.5kg
Communication	CAN / RS485 / WiFi
Parallel Connection	Up to 20 units
Humidity	15–85% RH
Charge Temperature	0~55ºC
Discharge Temperature	-40~60ºC
Storage Temperature	-20~60ºC
Operating Altitude	<3000m
Protection Rating	IP20
Cooling Method	Natural Cooling
Installation Environment	Indoor
Certifications & Documents	UN38.3 / MSDS / CE

Polinovel Sodium-ion Battery Benefits

Polinovel Sodium ion Battery for Starting

Top-Grade Battery Cells

Built with high-quality sodium-ion cells, our batteries deliver outstanding advantages—including fast charging efficiency, zero maintenance, and exceptional performance in low-temperature environments.

Exceptional Performance

With superior charge/discharge rates and outstanding low-temperature capabilities, our sodium-ion batteries are perfectly suited for demanding applications such as car starting, marine starting, motorcycle starting, etc.

Long Cycle Life

Polinovel sodium-ion batteries feature excellent deep cycle performance, delivering consistent and reliable power over their service life. Their durability makes them a smart choice for applications that demand long-lasting power.

Reliable Product Warranty

As a trusted battery supplier, Polinovel offers a comprehensive warranty that guarantees both performance and longevity, ensuring you can rely on the quality and durability of Polinovel batteries with complete peace of mind.

Built-in BMS Protection

Over Charge/Discharge Protection

Monitors the battery voltage and ensures that it does not exceed or fall below a certain value to prevent over charge/discharge.

Temperature Protection

Monitors the temperature of each cell and protects the battery if the temperature exceeds/goes below a preset threshold.

Short Circuit Protection

Interrupts the flow of electricity to prevent any further damage after detecting a short-circuit.

Cell Balancing

Ensures all the cells are kept at the same voltage or SOC and helps to extend the life of the battery.

Polinovel Promises

High-performance Battery Solutions

Our team of experts thoroughly analyzes market needs and actively explores new technologies to create innovative battery solutions. Our battery products are manufactured using state-of-the-art technology and strict quality control measures to ensure they offer superior performance and great reliability.

Quality Assurance

As a reliable battery manufacturer, we offer products that meet global standards. Our battery products are certified with CE, MSDS, RoHS, and UN38.3 certifications. When you opt for our products, be assured that quality and safety is our utmost concern.

Exceptional Customer Service

Our commitment is to provide excellent customer service from beginning to end. Our team has a wealth of experience and is focused on providing the most satisfying experience for our customers. We offer quick and effective service, whether it's responding to product inquires, assisting with orders, or dealing with technical issues.

On-time Delivery

As an experienced battery supplier in the industry, we have an exceptional supply chain system and fast logistics. We are committed to providing efficient delivery to ensure that our customers receive their orders on time.

Sodium-Ion Battery FAQs

Q Can this 12V sodium-ion battery replace a lead-acid starting battery?

A It can be used as a replacement in compatible starting applications. Before replacement, check the CCA, battery dimensions, terminal layout, charging voltage, and operating temperature.
Q How does this sodium-ion battery perform in cold weather?

A It retains more than 80% capacity at −20°C and supports discharge operation down to −30°C, making it suitable for cold-weather starting applications.
Q Can I use an existing 12V lead-acid charger?

A Compatibility depends on the charger's output voltage and charging profile. Check that the charger is suitable for the battery's 15.6V recommended charging voltage before use.
Q How long does this 12V 100Ah sodium-ion battery last?

A The battery supports ≥2,500 cycles at 1C, 100% DoD and ≥4,000 cycles at 0.2C, 100% DoD under specified test conditions.
Q Does this sodium-ion battery have a built-in BMS?

A Yes. The integrated BMS provides protection against overcharge, overdischarge, overtemperature, and short circuits, while supporting cell balancing.