48V Stackable Lithium Battery for Home Solar System

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48V Stackable Lithium Battery for Home Solar System

Plug-in & cable-less design
Stackable design ensures easy installation
Integrated master control module
Allow up to 10 units in parallel for power expansion
Great compatibility with 20+ inverter brands
LCD display with customized logo


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Polinovel 48V STK Series is a stackable LiFePO4 solar battery that combines modular design, easy plug-and-play installation, and great inverter compatibility. It is a flexible residential energy storage solution available in 10kWh, 15kWh, 20kWh, and 25kWh, and can be easily expanded to meet different energy needs.

STK Series

Plug And Play

The plug-and-play design makes the installation easier by eliminating the need for wiring, screwing or DIP setting.

Support Parallel Connection for Larger Power

Featured with a modular design, this lithium solar battery can be easily expandable by stacking modules. It allows 10 units in parallel connection, which can perfectly adapt to different energy demands.

Great Compatibility with Multiple Inverter Brands

It uses an advanced BMS and has developed its own program to work seamlessly with most inverters available on the market.

Drive 10KW Inverter

The built-in high-current BMS allows for safe operation of a 10KW inverter and management of heavier loads. This makes it ideal for applications that require large amounts of backup power.

Specification

Model	STK10	STK15	STK20	STK25
Nominal Voltage	51.2V	51.2V	51.2V	51.2V
Nominal Capacity	200Ah	300Ah	400Ah	500Ah
Energy	10.24kWh	15.36kWh	20.48kWh	25.6kWh
Charge Cut-off Voltage	58.4V	58.4V	58.4V	58.4V
Discharge Cut-off Voltage	40V	40V	40V	40V
Standard Charge Current	100A	150A	200A	250A
Max. Charge Current	200A	300A	400A	500A
Max. Constant Discharge Current	200A	300A	400A	500A
Peak Discharge Current	300A	400A	500A	600A
Communication	RS485/CAN	RS485/CAN	RS485/CAN	RS485/CAN
Dimension	585360458 mm (2314.218 in)	585360608 mm (2314.223.9 in)	585360758 mm (2314.229.8 in)	585360908 mm (2314.235.7 in)
Weight	92 kg (202.8 lbs)	138 kg (304.2 lbs)	184 kg (405.7 lbs)	230 kg (507.1 lbs)
Charge Temperature	0~50 °C	0~50 °C	0~50 °C	0~50 °C
Discharge Temperature	-15~ 60°C	-15~ 60°C	-15~ 60°C	-15~ 60°C

Polinovel Lithium Battery Benefits

High Quality Battery Cells

Adopt top-grade lithium iron phosphate battery cells that offer significant advantages, including improved charging efficiency, zero maintenance and the ability to deep discharge while maintaining power.

Long Cycle Life

Polinovel lithium batteries provide reliable and adequate power for deep cycle use over a long period of time. The extended lifespan makes

the batteries an excellent choice for many applications that require long-lasting power.

Advanced Safety Features

The built-in BMS protects the battery from extreme temperatures, overcharging, over-discharging, and short circuits to ensure

durability and reliability.

Solid Product Warranty

Polinovel is a reputable LFP battery supplier

that offer a reliable warranty that covers the performance and life of the battery products, giving consumers peace of mind knowing that they can trust the quality of Polinovel lithium batteries.

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 lithium battery solutions. Our lithium ion 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 Li ion battery supplier, we offer products that meet global standards. Our lithium 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 LFP 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.