Energy independence requires more than simply installing solar panels. A dependable off-grid system also needs a durable battery, a powerful inverter and intelligent controls that work together efficiently.

The Endurance 5 LiFePO4 Battery and Indie 12 Off-Grid Inverter from Pulsar Industries create a complete energy solution designed for residential, commercial, agricultural and critical infrastructure applications.

Together, these products offer scalable energy storage, powerful split-phase output and long-term serviceability without forcing users into a proprietary ecosystem.

Why Off-Grid Energy Systems Are Becoming More Important

Power outages, increasing electricity costs and growing concerns about energy security have encouraged homeowners and businesses to explore independent power solutions.

A professionally designed off-grid system can store energy generated by solar panels and deliver that electricity whenever it is required. It can provide dependable power during grid outages or support locations where grid access is limited or unavailable.

However, the reliability of the entire system depends heavily on the quality of its battery and inverter.

This is where the Endurance 5 and Indie 12 work together.

Meet the Endurance 5 LiFePO4 Battery

The Endurance 5 is a 5.12 kWh rack-mounted lithium iron phosphate battery designed for long-term ownership and dependable daily operation.

Unlike batteries built around proprietary components, the Endurance 5 uses standard communication protocols and a serviceable design. This makes it easier to integrate, maintain and expand as energy requirements change.

Key Endurance 5 Features

• 5.12 kWh energy-storage capacity
• LiFePO4 battery chemistry
• More than 6,000 charge cycles
• 10-year warranty
• Approximately 22-year projected cycle life
• Standard 19-inch EIA rack-mount design
• CAN and RS485 communication
• Scalable storage capacity
• Replaceable, domestically manufactured BMS
• No mandatory cloud connection

Multiple Endurance 5 batteries can be installed together to create a larger storage system. This makes the product suitable for everything from small off-grid properties to commercial backup systems.

Meet the Indie 12 Off-Grid Inverter

The Indie 12 is a 12 kW split-phase off-grid inverter engineered and manufactured in the United States.

It converts stored DC electricity from the battery system into usable AC electricity for equipment, appliances and electrical systems.

The inverter operates with a 48V battery system and includes dual 6 kW MPPT solar inputs. Up to six units can be installed in parallel when a project requires higher output capacity.

Key Indie 12 Features

• 12 kW power capacity
• Split-phase power output
• 48V battery compatibility
• Dual 6 kW MPPT inputs
• Up to six units in parallel
• CAN and RS485 communication
• Optional cloud connectivity
• American-controlled firmware
• Transparent supply-chain documentation
• Designed for FEOC-compliant projects

The Indie 12 is specifically designed for off-grid applications. Its dual MPPT inputs allow it to manage power from large solar arrays while efficiently charging the connected battery system.

How the Endurance 5 and Indie 12 Work Together

The Endurance 5 stores electricity generated by solar panels or another supported energy source. The Indie 12 then converts that stored energy into electricity that can be used by a home, farm, business or critical facility.

Both products support standard CAN and RS485 communication protocols, allowing the battery and inverter to exchange important operating information.

This communication helps the system monitor battery conditions, manage charging and deliver power efficiently.

The basic energy flow is:

Solar Panels → Indie 12 Inverter → Endurance 5 Battery Storage → Property or Equipment

During the day, available solar power can operate connected loads and charge the batteries. When solar production decreases, the Endurance 5 batteries can continue supplying stored power through the Indie 12.

Scalable Energy Storage for Changing Requirements

One of the main benefits of this combination is scalability.

A smaller property may begin with a limited number of Endurance 5 battery modules. Additional modules can be installed later if the property’s energy consumption increases.

For higher-power projects, up to six Indie 12 inverter units can be operated in parallel, subject to proper system engineering and installation.

This modular approach allows customers to build a system around their current needs without preventing future expansion.

Designed for Long-Term Ownership

Many energy systems depend on proprietary software, specialized mounting hardware or components that may become unavailable in the future.

The Endurance 5 takes a different approach. It uses a standard 19-inch rack format and supports commonly used communication protocols. Pulsar Industries also controls the battery-management-system source code and provides access to replacement BMS components through authorized distributors.

If a BMS component requires replacement years after installation, the battery may be repaired instead of replacing the complete storage unit.

This serviceable approach can reduce long-term downtime, electronic waste and total ownership costs.

No Mandatory Cloud Dependency

Some modern energy products require a continuous internet connection to operate, monitor performance or receive software updates.

The Endurance 5 and Indie 12 are designed without mandatory cloud dependency. Cloud connectivity can be used where appropriate, but the equipment is not dependent on a remote server for its basic operation.

This is particularly valuable for:

• Remote properties
• Agricultural facilities
• Emergency-response locations
• Communication infrastructure
• Government facilities
• Areas with unreliable internet access

The system can continue performing its primary power functions even when internet connectivity is unavailable.

Applications for the Complete System

Residential Off-Grid Properties

The system can support cabins, homesteads and remote houses that need reliable electricity without depending entirely on the utility grid.

Solar Energy Storage

Energy generated during the day can be stored in Endurance 5 batteries and used at night or during periods of reduced solar production.

Commercial Backup Power

Businesses can use the system to support essential equipment during power interruptions and reduce the operational impact of unexpected outages.

Farms and Agricultural Operations

Agricultural properties can use stored energy for monitoring equipment, lighting, communications and other essential electrical loads.

Emergency and Critical Infrastructure

Emergency services, communication towers and critical facilities can benefit from locally controlled backup power without mandatory cloud access.

Why LiFePO4 Chemistry Is Suitable for Energy Storage

Lithium iron phosphate, commonly known as LiFePO4 or LFP, is widely used in stationary energy-storage systems because of its long cycle life, stable chemistry and consistent performance.

The Endurance 5 is rated for more than 6,000 cycles, making it suitable for projects where the battery may charge and discharge regularly.

Its long operating life can make it a practical choice for solar installations, commercial backup systems and off-grid applications.

American Engineering and Supply-Chain Transparency

Pulsar Industries designs and manufactures battery and power-conversion solutions in Texas.

The Indie 12 has been developed with FEOC compliance and supply-chain transparency in mind. This can be important for commercial, government and critical-infrastructure projects that must evaluate the origin, control and cybersecurity of their energy equipment.

Eligibility for incentives depends on the project, current regulations and other requirements. Customers should consult a qualified tax professional before making decisions based on potential tax benefits.

Building the Right System for Your Application

Every property has different energy requirements. Battery capacity and inverter output should be selected after considering:

• Daily electricity consumption
• Maximum simultaneous load
• Starting power required by equipment
• Available solar-generation capacity
• Required backup duration
• Installation environment
• Plans for future expansion

A professional load assessment helps determine the correct number of Endurance 5 battery modules and whether one or more Indie 12 inverters will be required.

A Dependable Foundation for Energy Independence

The Endurance 5 and Indie 12 provide a practical foundation for building a powerful, scalable and serviceable off-grid energy system.

The Endurance 5 delivers long-life LiFePO4 storage, while the Indie 12 provides the power conversion required to operate residential and commercial loads. Standard communication protocols, replaceable components and optional cloud connectivity give system owners greater control over their equipment.

Whether the project involves an off-grid home, agricultural property, commercial facility or critical infrastructure, Pulsar Industries can help engineer an energy system around its real operating requirements.

Talk to Pulsar Industries

Looking for a reliable off-grid or solar energy-storage solution?

Contact Pulsar Industries to discuss your power requirements and learn how the Endurance 5 and Indie 12 can be configured for your project.