High-Capacity 12V LiFePO4 Battery

12V 300Ah LiFePO4 Deep Cycle Battery

Built for buyers who need more stored energy in a 12V system, this 12.8V 300Ah LiFePO4 battery delivers 3840Wh in one unit for RV, solar, marine, backup, and other deep-cycle applications. It is best suited to projects where longer runtime, fewer battery changes, and stronger house battery performance matter more than a small entry-level setup.

12.8V / 300Ah / 3840Wh

Built-in 200A BMS

Bluetooth Standard

Supports 4P4S

For RV / Solar / Marine / Backup

High-Capacity Deep Cycle

Send Inquiry Request Datasheet

Inquiry-only page. We can share the current datasheet, available certifications, and compatibility guidance for your RV, solar, marine, or backup project.

Voltage

12.8V

Capacità

300Ah

Energia

3840Wh

Buyer Snapshot

Why choose a 12V 300Ah LiFePO4 battery

This quick snapshot helps buyers judge whether a 12V 300Ah LiFePO4 battery is the right fit for a larger 12V battery bank, a long-runtime house battery system, or a deeper energy storage setup.

Model

12.8V 300Ah

Large-capacity 12V deep cycle battery

Energia

3840Wh

More stored energy in one battery

Tipo di cella

LiFePO4 Prismatic

Stable lithium iron phosphate cell design

Protection

Built-in 200A BMS

Core protections for daily battery operation

Bluetooth

Standard

App-based battery visibility included

System Role

12V House Battery

Built for larger 12V deep-cycle systems

Expansion

4P4S

Suitable for larger battery bank planning

Typical Use

RV / Solar / Marine / Backup

A strong fit for high-demand deep-cycle use

Lead-acid Replacement

12V 300Ah LiFePO4 battery vs lead-acid

A 12V 300Ah LiFePO4 battery is often selected when buyers need more usable energy, less maintenance, and longer service life than a comparable lead-acid setup. The comparison below is for deep-cycle applications such as RV, solar, marine, and backup use, not starter batteries.

12.8V 300Ah LiFePO4 battery for larger 12V deep-cycle systems

Capacity positioning

Model

12.8V 300Ah

Large-capacity 12V platform

Built for larger 12V deep-cycle systems that require longer runtime.

Runtime-focused use

Stored Energy

3840Wh

Higher energy per battery

A practical option for projects needing more daily usable energy in one battery.

Lead-acid figures are based on a typical 12V 300Ah deep-cycle lead-acid reference. Actual values vary by battery type and use conditions.

Item

12V 300Ah LiFePO4 Battery

Typical 12V 300Ah Lead-acid Setup

Peso

Large-capacity lithium battery option

Typically much heavier in a similar-capacity lead-acid setup

Usable Energy

3840Wh stored energy with more practical daily use

Typically lower usable energy in regular cycling

Manutenzione

No watering, no acid, no venting

More maintenance and faster aging in cycling use

Monitoraggio

Bluetooth standard for battery status checks

Usually needs an external meter or shunt for better visibility

Expansion

Supports 4P4S

Expansion is possible, but layout is usually bulkier and less flexible

Charging Profile

Best used with a LiFePO4-compatible charger or controller

Uses a different charging profile

Before replacing a lead-acid setup, check these points

Most replacements go more smoothly when the battery fit, charging profile, and system current are checked first.

Battery space and terminal fit

Confirm compartment size, terminal access, cable routing, and installation space before replacement.

Charging compatibility

Use a charger or charge controller with a LiFePO4-compatible charging profile instead of a lead-acid-only setting.

System current and runtime planning

Check inverter demand, charge/discharge current, and target runtime before final battery selection.

Applicazioni

12V 300Ah LiFePO4 battery for RV, solar, marine and backup systems

A 12V 300Ah LiFePO4 battery is most useful where buyers need longer runtime and higher stored energy in a 12V battery system. It is less about simple small-scale replacement, and more about powering larger house battery, off-grid, and reserve power setups.

Main application
RV & Camper House Power

A strong fit for RV and camper systems that need more usable energy for lights, appliances, inverters, and extended off-grid living.

Stoccaggio dell'energia solare

Well suited to 12V solar battery banks that need deeper cycling, longer runtime, and more stored energy in one battery.

Marine House Battery Systems

A practical option for marine auxiliary and house battery use where stable deep-cycle performance and reduced maintenance are important.

Backup & Off-grid Power

Useful for home backup, cabin systems, and other reserve power projects that need a larger-capacity 12V battery solution.

Bluetooth Monitoring

Bluetooth monitoring in a 12V 300Ah LiFePO4 battery

Bluetooth is standard on this 12.8V 300Ah LiFePO4 battery, making battery status easier to check during installation, setup, and daily system use. This is especially useful in larger 12V battery systems where runtime, charging condition, and battery visibility matter more.

What the app is used for

Read battery status more easily on site. Useful for checking charge status, reviewing voltage and battery condition, supporting troubleshooting, and understanding system behavior without relying only on external guesswork.

Battery status visibility

Voltage review

Charge and discharge checks

Useful during setup and troubleshooting

Helpful in larger battery bank planning

You can also check basic status and warning visibility depending on firmware.

App screenshot shown is a representation of typical status fields. Actual UI details may vary by firmware version.

Bluetooth app screenshot for LiFePO4 battery monitoring

Technical Specifications

12V 300Ah LiFePO4 battery specifications and fit guide

This 12.8V 300Ah LiFePO4 battery is built for high-capacity deep-cycle use in 12V systems. It is most relevant for buyers comparing large battery capacity, stored energy, system fit, and runtime potential across RV, solar, marine, and backup projects.

A high-capacity 12V lithium battery with 300Ah rated capacity, 3840Wh stored energy, Bluetooth standard, and 4P4S expansion support for longer runtime and larger battery system planning.
Tipo di cella	LiFePO4 Prismatic
Warranty	5 Years
Ciclo di vita	4000 Cycles at 100% DOD, 6000 Cycles at 80% DOD, 15000 Cycles at 60% DOD
Nominal Voltage	12.8V
Rated Capacity	300Ah
Energia	3840Wh
Max Expansion (Parallel & Series)	4P4S
Certificazioni	FCC, CE, RoHS, UN38.3
Bluetooth	Standard
BMS	200A
Max. Continuous Output Power	2560W
Max. Continuous Charge Current	200A
Max. Continuous Discharge Current	200A
Max. Discharge Current (1 second)	800A
Charge Method	CC/CV
Tensione di carica	14.4V +/- 0.2V
Recommend Charge Current	60A
Charge Temperature	0C to 50C / 32F to 122F
Discharge Temperature	-20C to 60C / -4F to 140F
Storage Temperature	-10C to 50C / 14F to 122F
Terminals	M8
Weight Approx.	30kgs
Size	522 × 237 × 218 mm
Housing Material	ABS
Protection Class	IP65

For a project-ready confirmation pack (datasheet + documents + compatibility notes), use the inquiry form below.

Dimensions & Fit

12V 300Ah LiFePO4 battery dimensions, terminal layout and fit guide

Before ordering, confirm whether the 12V 300Ah LiFePO4 battery fits your battery compartment, cable routing, terminal access, and installation plan. This is especially important for RV, marine, solar, and backup systems using a larger-capacity 12V battery.

Dimensions & terminals

Use the current dimension drawing and terminal spec to confirm compartment fit and cable hardware before ordering.

12V 300Ah LiFePO4 battery dimensions and terminal layout drawing

Use the drawing to confirm installation space, lifting clearance, cable direction, and battery placement before deployment.

Installer / procurement checklist

Fast checks that prevent rework in retrofits and new builds.

Confirm battery compartment dimensions and installation orientation.
Check terminal access and cable routing before replacement.
Review lifting clearance and service access around the battery location.
Verify charger and controller voltage profile compatibility for LiFePO4.
Confirm system current demand against battery and inverter requirements.

BMS & Charging

How to charge a 12V 300Ah LiFePO4 battery

A large-capacity 12V lithium battery should be matched with the correct charging profile and charging equipment. The built-in 200A BMS helps support safer operation, while proper charging settings help the battery perform more reliably in solar, RV, marine, and backup systems.

Overcharge protection Helps prevent charging above safe limits.
Over-discharge protection Helps prevent deep discharge below safe thresholds.
Overcurrent protection Helps limit current in fault or overload conditions.
Short circuit protection Provides fast response in output short-circuit events.
Temperature protection Helps protect battery operation across charge and discharge conditions.

Three practical charging methods

Use charging equipment with a LiFePO4-compatible profile for 12V lithium systems.

For a 300Ah battery, charger sizing and system current planning matter. Confirm compatibility before installation.

DOCUMENTS & COMPLIANCE

Documents available with this battery

Battery documents help buyers review transport, compliance, and project requirements before ordering.

ONU38.3

Transport safety report for lithium battery shipments.

Contattaci

MSDS

Material Safety Data Sheet — handling and storage info.

Contattaci

Transport Class Report

Official transport classification and shipping guidelines.

Contattaci

Conformity documentation for the European market.

Contattaci

IEC

Testing to IEC standards for lithium battery safety/performance.

Contattaci

FAQ

FAQ about 12V 300Ah LiFePO4 battery

Answers for buyers evaluating this 12.8V 300Ah LiFePO4 battery for deep-cycle applications.

What is a 12V 300Ah LiFePO4 battery best used for?

A 12V 300Ah LiFePO4 battery is best suited to larger-capacity deep-cycle applications such as RV house power, solar energy storage, marine auxiliary systems, and backup power projects.

How much energy does a 12.8V 300Ah LiFePO4 battery provide?

A 12.8V 300Ah LiFePO4 battery provides 3840Wh of stored energy.

Can a 12V 300Ah LiFePO4 battery replace lead-acid?

In many deep-cycle applications, yes. Buyers should confirm battery dimensions, charging profile, system current, and installation fit before replacement.

Is a 12V 300Ah LiFePO4 battery good for RV use?

Yes. It is a strong fit for RV house battery systems where longer runtime and more stored energy are needed.

Is this battery suitable for solar systems?

Yes. It is well suited to 12V solar storage systems that need deeper cycling and higher battery capacity.

Does this battery have Bluetooth?

Yes. Bluetooth is standard on this model and helps buyers check battery status more easily during setup and daily system use.

What charger should be used for a 12V 300Ah LiFePO4 battery?

Use a LiFePO4-compatible charger or charge controller designed for the correct 12V lithium charging profile.

Can this battery be used in marine applications?

Yes. It is suitable for marine auxiliary and house battery systems where deep-cycle use is required.

What should I check before ordering?

Confirm dimensions, terminal layout, battery weight if available, installation space, system voltage, charging compatibility, and current demand.

Send Inquiry

Send your inquiry for this 12V 300Ah LiFePO4 battery

If you are evaluating a 12V 300Ah LiFePO4 battery for RV, solar, marine, backup, or off-grid use, send your project details so we can reply with the right battery information.