SOONEST 12.8V/25.6V 50Ah–250Ah Deep Cycle LiFePO4 Battery

Reliable Deep-Cycle Lithium Power for Solar, RV and Backup Applications

The SOONEST Deep Cycle LiFePO4 Battery Series provides reliable energy storage for solar power systems, recreational vehicles, marine equipment, backup power and other deep-cycle applications.

Available in 12.8V and 25.6V configurations with capacities from 50Ah to 250Ah, the series offers flexible battery options for different energy requirements.

Compared with conventional lead-acid batteries, LiFePO4 technology provides lower weight, higher usable capacity, faster charging and longer cycle performance under appropriate operating conditions.

Available Configurations

The battery series may include:

• 12.8V 50Ah
• 12.8V 100Ah
• 12.8V 150Ah
• 12.8V 200Ah
• 12.8V 250Ah
• 25.6V 50Ah
• 25.6V 100Ah
• 25.6V 150Ah
• 25.6V 200Ah
• 25.6V 250Ah

Available voltage and capacity combinations should be confirmed before ordering.

Key Features

LiFePO4 Battery Technology

The battery uses lithium iron phosphate chemistry designed for stable and dependable energy storage.

Main advantages include:

• High thermal stability
• Long deep-cycle performance
• High charge and discharge efficiency
• Low routine maintenance
• No memory effect
• Lower weight than comparable lead-acid batteries
• High usable energy capacity

Actual cycle life depends on charging voltage, depth of discharge, operating temperature and application conditions.

12.8V and 25.6V Options

The series is available in two nominal voltage platforms:

• 12.8V for compatible 12V systems
• 25.6V for compatible 24V systems

The selected battery voltage must match the inverter, charger, controller and electrical equipment.

Multiple Capacity Options

Battery capacities from 50Ah to 250Ah are available for small and large energy-storage requirements.

Smaller batteries are suitable for portable equipment and compact backup systems, while higher-capacity models provide longer operating time for solar, RV, marine and off-grid applications.

Built-In Battery Management System

The integrated Battery Management System monitors battery operation and provides protection against abnormal conditions.

Available BMS protection functions may include:

• Overcharge protection
• Over-discharge protection
• Overcurrent protection
• Short-circuit protection
• High-temperature protection
• Low-temperature protection
• Cell-voltage monitoring
• Cell balancing

Protection specifications vary according to the selected battery model.

Deep-Cycle Performance

The battery is designed for repeated charging and discharging in energy-storage applications.

It is suitable for systems that require regular daily cycling, including solar storage, recreational vehicles and backup power.

For optimum service life, the battery should be used within the recommended voltage, current and temperature limits.

Lead-Acid Battery Upgrade Option

LiFePO4 batteries can be used as an upgrade option for many applications that traditionally use lead-acid batteries.

Potential benefits include:

• Lower battery weight
• Greater usable capacity
• Faster charging
• Reduced maintenance
• Longer operating life
• More stable output voltage

Compatibility with an existing lead-acid charging system must be confirmed before replacement. The charger or controller must support the correct LiFePO4 charging profile.

Low Self-Discharge

The battery has a relatively low self-discharge rate, making it suitable for equipment that is stored or used seasonally.

The battery should still be charged and maintained according to the supplied storage instructions.

Flexible Series and Parallel Expansion

Selected models may support series or parallel connection for increasing system voltage or storage capacity.

Connection quantity and configuration depend on the battery model and BMS design. Only batteries of the same voltage, capacity, model and state of charge should be connected together.

Always confirm series and parallel compatibility before installation.

Typical Applications

The SOONEST deep-cycle LiFePO4 battery is suitable for:

• Residential solar energy storage
• Off-grid solar systems
• Recreational vehicles
• Motorhomes and caravans
• Marine and boat power systems
• Electric trolling motors
• Camping power systems
• Portable power equipment
• Emergency backup power
• Uninterruptible power supplies
• Telecom backup systems
• Security and monitoring equipment
• Lighting systems
• Small electric vehicles
• Agricultural equipment
• Remote cabins and buildings

Solar Energy Storage

The battery can store electricity generated by solar panels for use at night or when solar production is insufficient.

It can be connected to a compatible solar charge controller or inverter that supports the correct LiFePO4 battery voltage and charging parameters.

RV and Camping Applications

The battery can provide energy for compatible equipment such as:

• Interior lighting
• Refrigerators
• Fans
• Televisions
• Water pumps
• Communication devices
• USB charging equipment
• Small electrical appliances

Actual operating time depends on battery capacity and total power consumption.

Marine Applications

Selected models may be suitable for boats, marine electronics and trolling motors when installed in a dry, ventilated and properly protected battery compartment.

The enclosure protection rating and marine compatibility should be confirmed before use in wet or saltwater environments.

Main Benefits

• 12.8V and 25.6V options
• Capacities from 50Ah to 250Ah
• Stable LiFePO4 battery chemistry
• Built-in Battery Management System
• Designed for deep-cycle operation
• Lower weight than comparable lead-acid batteries
• High usable energy capacity
• Low maintenance requirements
• Fast and efficient charging
• Suitable for solar, RV and backup applications
• Series or parallel expansion on compatible models
• Multiple capacity configurations available

Product Selection Guide

Please provide the following information before ordering:

• Required system voltage
• Required battery capacity
• Connected equipment
• Maximum continuous load
• Maximum starting current
• Required operating time
• Charger or inverter model
• Solar controller specifications
• Series or parallel connection requirement
• Installation environment
• Required communication functions
• Application type

Our technical team can recommend a suitable battery voltage and capacity according to your system requirements.

Important Notes

• Use only a charger or controller compatible with LiFePO4 batteries.
• Confirm whether the system requires 12.8V or 25.6V.
• Do not use a conventional lead-acid charging profile unless it is approved for the selected battery.
• Confirm the maximum continuous and peak discharge current.
• Do not mix batteries of different models, voltages, capacities or ages.
• Series and parallel connection must be approved for the selected model.
• Keep the battery away from water, fire, excessive heat and physical damage.
• Product dimensions, weight, terminals and BMS specifications may vary by model.