EcoBoss 12.8V 300AH LiFePO4 Battery

Get the Highlights

The ecoboss 12V 300Ah LiFePO₄ battery is designed to deliver stable, dependable energy with a high-capacity lithium solution and a built-in Smart BMS. Suitable for both indoor and outdoor applications, it provides reliable power where safety, efficiency, and long-term
performance matter most.

High-Performance Protection

Built with an intelligent Smart BMS, the ecoboss 12V 300Ah LiFePO₄ battery offers multiple layers of electrical protection, including over-charge, over-discharge, over-current, and short-circuit protection. The battery supports stable operation within defined temperature ranges, with charging from 0°C to 50°C, discharging from −20°C to 60°C, and recommended storage from −10°C to 30°C, helping maintain long-term reliability and safety.

Superior to Lead-Acid

Designed as a modern alternative to lead-acid batteries, the ecoboss 12V 300Ah LiFePO₄ battery weighs only 56.13 lbs lbs, about 1/3 the weight of a traditional 12V 300Ah lead-acid battery. This reduced weight allows for easier installation, improved portability, and greater flexibility across a wide range of indoor and outdoor power applications.

Larger Capacity

The ecoboss 12V 300Ah lithium iron phosphate battery boasts 3840Wh of usable energy. This higher capacity supports longer runtime and greater flexibility, making it a reliable power solution for a variety of indoor and outdoor applications.

Your One-Stop Energy Station

Designed to power life on and off the grid, the ecoboss 12V 300Ah LiFePO₄ battery is suitable for RVs, campers, home backup, solar storage, marine applications, and trolling motors (30–70 lb). Wherever your journey takes you, it delivers dependable energy to support your everyday and outdoor power needs.

Fast & Flexible Charging

With efficient lithium charging performance, the ecoboss 12V 300Ah LiFePO₄ battery supports flexible charging anytime—whether from a LiFePO₄ charger, solar power, or a generator. The no-memory-effect design allows partial or full charging without compromise, helping ensure convenient and reliable energy management across a wide range of applications.

SPECIFICATIONS

Battery Overview

Battery Chemistry:	Lithium Iron Phosphate (LiFePO₄)
Nominal Voltage:	12.8V
Rated Capacity:	≥300Ah
Energy:	3840Wh
Cycle Life:	>3000 Cycles
Warranty:	5 Years

Electrical Performance

Voltage Range:	10.8V – 14.2V
Charge Voltage:	14.2V ± 0.20V
Recommended Charge Current:	140A
Maximum Continuous Charge Current:	200A
Maximum Continuous Discharge Current:	200A
Peak Discharge Current:	400A (3s)
Discharge Cut-off Voltage:	10.0V ± 0.20V
Series / Parallel Expansion:	Up to 4S / 4P

BMS & Safety Protection

BMS Type:	Integrated Smart BMS
Protection Functions:	Over-charge, Over-discharge, Charge & Discharge Over-current, Short Circuit, Temperature Protection, Reverse Polarity Protection

Environmental Conditions

Charge Temperature Range:	0°C to 50°C
Discharge Temperature Range:	-20°C to 60°C
Storage Temperature Range:	-10°C to 30°C
Protection Rating:	IP62

Mechanical Specifications

Dimensions (L × W × H):	526 × 240 × 218 mm
Weight:	26 kg
Terminal Type:	M8 Bolts
Housing Material:	ABS

Certifications & Compliance

Certifications:

RoHS, REACH

Frequently Asked Questions

What makes this LiFePO₄ battery different from a traditional lead-acid battery?

LiFePO₄ (Lithium Iron Phosphate) batteries offer 3× longer lifespan, 60% lighter weight, and faster charging compared to lead-acid. They maintain over 4000–15000 charge cycles and provide consistent voltage output throughout discharge—ideal for solar storage, RVs, and off-grid systems.

Can this battery replace a lead-acid battery directly?

Yes. The 12.8V 100Ah LiFePO₄ battery is a drop-in replacement for most 12V deep-cycle lead-acid or AGM batteries. Simply ensure your charger or controller supports LiFePO₄ charging mode (max charge voltage 14.6V).

Does it include a built-in BMS (Battery Management System)?

Absolutely. Each unit includes a smart BMS that protects against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes. It automatically balances cells to ensure optimal lifespan and stable operation.

Is it safe to use indoors or in a confined space?

Yes. LiFePO₄ batteries are non-toxic, non-leaking, and have no gas emissions, making them safe for indoor use in RVs, boats, and cabins. However, proper ventilation helps maintain optimal temperature.

Can I use this battery with an inverter or solar controller?

Yes. It’s compatible with pure sine wave inverters, MPPT/PWM controllers, and most 12V solar systems. Just confirm the inverter’s low-voltage cutoff (≥10.8V) and charge controller’s battery setting = LiFePO₄.

What happens if the battery gets too cold or too hot?

The built-in BMS protects against temperature extremes. Charging is automatically disabled below 0°C (32°F) and above 55°C (131°F) to prevent damage. The battery will resume normal operation once back within safe limits.

Can I monitor the battery status?

If you choose the Bluetooth version, you can check real-time voltage, capacity, temperature, and cycle count via a smartphone app. It helps you optimize energy usage and detect issues early.

How do I store the battery when not in use?

Store it at 40–60% charge, in a dry, cool place (10–30°C). Disconnect from all loads and chargers. If stored long-term, recharge every 3–6 months to maintain health.