Pytes V12 LiFePO4 Battery 11.76 kWh 51.2 V Low-Voltage Battery Storage System

The Pytes V12 LiFePO4 battery (MPN: 110402100235) is a high-performance low-voltage battery storage solution for residential and small-scale commercial energy storage systems. With a rated capacity of 11.76 kWh, a battery management system (BMS), and an IP66 protection rating, it is suitable for long-lasting and reliable PV storage solutions in indoor and protected outdoor environments. The battery supports both standalone installations and parallel operation of multiple storage modules and offers extensive communication options via CAN, RS485, and Wi-Fi.

Product Highlights

• 11.76 kWh storage capacity at 51.2 V nominal voltage
• Lithium iron phosphate (LiFePO4) technology with high safety and long service life
• Over 6,000 charge cycles at a 90% depth of discharge (DoD)
• Up to 16 batteries can be connected in parallel
• Integrated DC circuit breaker and pre-charge circuit
• Optional integrated aerosol fire suppression system
• IP66 protection rating and C4-M corrosion protection class
• Integrated heating film for operation at low temperatures
• Communication via CAN, RS485, Wi-Fi, and dry contact
• Remote monitoring and firmware updates via Wi-Fi dongle
• Wall or floor mounting possible

High storage capacity for modern PV systems

With its high rated energy capacity, the Pytes V12 is ideal as an energy storage solution for single-family homes and smaller commercial applications. The battery stores excess solar power and makes it available for self-consumption at a later time. This reduces grid draw and increases the self-consumption of the photovoltaic system. The battery operates as a low-voltage storage system (51.2 V). Low-voltage systems are characterized by their easy integration into many hybrid and battery storage inverters and are frequently used in residential buildings.

Safe LiFePO4 Cell Technology

The Pytes V12 uses lithium iron phosphate (LiFePO4) cells. Compared to many other lithium technologies, this cell chemistry offers high thermal stability, a long service life, and excellent cycle stability.

The integrated battery management system continuously monitors, among other things:

• Cell voltages
• Charge and discharge currents
• Temperature
• Short circuits
• Overvoltage and undervoltage
• Cell balancing
• Protection against reverse polarity of power cables

This ensures safe and reliable operation.

High-Performance in Daily Operation

The battery operates with a recommended charge and discharge current of 100 A, which corresponds to a continuous power output of 5.12 kW. Discharge currents of up to 200 A are possible for 180 seconds. With a depth of discharge (DoD) of 90%, a large portion of the stored energy can be utilized without significantly affecting the battery’s service life.

Scalable for Growing Storage Systems

If energy demand increases, the storage system can be expanded. The Pytes V12 supports parallel operation of up to 16 batteries. This allows the total capacity to be flexibly adapted to larger photovoltaic systems or rising consumption levels. Communication between the batteries takes place via RJ45 cascading, while the connection to the inverter is established via CAN or RS485. Numerous inverter manufacturers are supported via preconfigured DIP switches.

Designed for Demanding Environments

The Pytes V12 is designed for continuous operation under a wide range of environmental conditions.

Features include:

• IP66 protection rating against dust and high-pressure water jets
• Corrosion protection class C4-M
• Integrated heating film for cold environments
• Operating temperature (charging): 0 °C to +55 °C
• Operating temperature (discharging): −20 °C to +55 °C
• Operational up to an altitude of 4,000 m

This makes the storage unit suitable for installations in garages, utility rooms, or sheltered outdoor areas.

Convenient monitoring and communication

Various communication interfaces are supported:

• CAN
• RS485
• Wi-Fi (optional via LSW-5 Wi-Fi dongle)
• Dry Contact
• RS232 for service and firmware updates

The optional Wi-Fi module allows you to monitor battery data and perform firmware updates.

Flexible Mounting

The battery can be mounted either on a wall or on an optional floor stand. Suitable wall mounts, as well as optional carrying handles and floor mounts, are available for installation. The integrated DC circuit breaker and the pre-charge circuit simplify commissioning and enhance operational safety.

Technical Specifications

• Battery type: Lithium iron phosphate (LiFePO4)
• Nominal voltage: 51.2 V
• Voltage range: 47.5–57.6 V
• Rated capacity: 230 Ah
• Rated energy: 11.776 kWh
• Recommended charge/discharge current: 100 A
• Rated power: 5.12 kW
• Peak discharge current: 200 A (180 s)
• Depth of Discharge (DoD): 90%
• Service life: ≥6,000 cycles
• Communication: CAN, RS485, Wi-Fi, dry contact
• Protection rating: IP66
• Corrosion protection: C4-M
• Mounting: Wall or floor (optional)
• Operating temperature (charging): 0 to +55 °C
• Operating temperature (discharging): −20 to +55 °C
• Dimensions: approx. 640 × 230 × 520 mm or 688 × 260 × 520 mm, including side cover
• Weight: approx. 100 kg
• Certifications: UL9540, UL9540A, UL1973, IEC62619, CE, CEC, UN38.3

Package Contents

Pytes V12 LiFePO4 battery
Power cables (positive and negative)
Ground cable
Communication/cascading cable
RJ45 Replacement Connector
Cover plate
Wall mount
Mounting screws
Installation instructions