AJPOWER Product Introduction

AJ48120 High-Capacity Lithium Power Battery for RVs and Boats

Powering the Future, Today: Experience the Difference with Our Innovative Batteries.

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AJ48120 High-Capacity  Lithium Power Battery for RVs and Boats

Product advantages



Extended Power Supply: The AJ48120 High-Capacity Lithium Power Battery provides ample energy storage for RVs and boats, ensuring a prolonged power supply for various appliances and systems onboard.

Lightweight Design: This lithium battery is designed to be lightweight, reducing the overall weight of the RV or boat and improving fuel efficiency and handling.

Fast Charging: The AJ48120 battery supports fast charging, allowing RV and boat owners to quickly recharge the battery and minimize downtime during their travels.

Deep Cycle Capability: With deep cycle capabilities, this battery can withstand multiple discharge and recharge cycles, making it ideal for RVs and boats that require sustained power over extended periods.

Long Lifespan: The AJ48120 battery offers a long lifespan with a high number of charge-discharge cycles, providing reliable power for RVs and boats over many years and reducing the need for frequent battery replacements.

Production information



Model Nominal Voltage Nominal Capacity Stored Energy Weight Dimension (LxWxH)
AJ48120 51.2V 120A 6.14kWh 61kg 550x390x225mm
Operating Current Protective Current Serial Connection Parallel Connection IP Protection Peak Discharge Current
100A 110A Max1S Max4P IP 67 400A


 Product Features


LONG LIFEUltra-Long Life: The AJ48120 High-Capacity Lithium Power Battery offers an extended lifespan, ensuring reliable performance over an extended period for RVs and boats.

ULTRA SAFESafety: This lithium power battery prioritizes safety with advanced protection mechanisms, preventing hazards and ensuring secure operation.

ALL-WEATHER PERFORMANCEAll-Weather Performance: The battery exhibits excellent performance in various weather conditions, enabling reliable power supply for RVs and boats regardless of the climate.

FAST CHARGE ANY TIMEFast Charging at Any Time: The battery supports fast charging, allowing RV and boat owners to quickly recharge their power source whenever needed..

LOW SELF-DISCHARGELow Self-Discharge: With low self-discharge rates, the battery can retain stored power for extended periods without significant loss, ensuring availability whenever required.

COST EFFECTIVECost-Effectiveness: The AJ48120 battery offers cost-effectiveness by providing long-term durability, reducing the need for frequent replacements, and delivering value for RV and boat owners.

ECO-FRIENDLYEnvironmental Protection: This lithium power battery is environmentally friendly, emitting no harmful gases or pollutants during operation, contributing to a greener and cleaner energy solution.

ZERO MAINTENANCEZero Maintenance: The battery requires minimal maintenance, saving time and effort for RV and boat owners, allowing them to focus on enjoying their outdoor adventures without worrying about battery upkeep.

Product Comparison



AJPOWER LiFePO4 Battery VS Lead-Ac id Battery
AJPOWER LiFePO4 Battery vs Lead-Ac id Battery
Stable discharge condition LOW TEMPERATURE Unstable discharge condition
> 3,500 times CYCLE LIFE < 500 times
10 years DESIGN LIFE 3 years
As little as 1 hour CHARGING TIME Up to 8 hours
No charging memory, charge anytime CHARGING FREQUENCY Charge everyday after using
Multiple built-in protection, thermal and chemical stability SAFETY Gas inside may cause explosion
85% or more of the rated capacity at high load operation USEABLE CAPACITY 30%~50% of rated capacity at high load operation
Save about 70% over 5 years BATTERY COST High costs per year
Zero maintenance MAINTENANCE Frequent maintenance required
No pollution POLLUTION Yes. Noxious gases can be released during charging


Company Information



AJ POWER is one stop energy solution supplier, who have got ISO9001 issued by TUV Rheinland when it was just established.

AJ POWER mainly covers four areas: power battery system, household energy storage system, RV energy storage system, portable power station and its accessories.Rely on our strong R&D team, we can not only provide standard product, but also customized solution.

who we are

Supply solar panels, 51.2V series lifepo4 battery, solar charge controller and inverter or hybrid inverter, providing both off-grid and on-grid 5KWh-60KWh household energy solution.

Off grid solution in vehicle, including flexible solar panel, solar charge controller, 12V lifepo4 battery or 24V lifepo4 battery and pure sine wave inverters and DC converter charger or battery chargers, etc.

Portable Power station range from 300W to 3000W and fold-able solar panels both PET and ETFE tech. with 23.2% charge efficiency.

IOT solution for different fields, which can be customized as well.

who we do

One to one service fast action within 12hrs, flexible order arrangement, 3D drawing can be provided within 3 days, prototype would be ready in 7 days after everything confirmed, bulk order delivery within 20 days.

why us

20+ sales team provide the considerable service, 

30+ patents and certificate provide the specialized support,

60+ R&D team provide the professional solution, 

100+ skilled workers guarantee the product quality, 

5000+ workshop area with two automatic production line guarantee the fast delivery.

10000+ stocked cells in warehouse periodic for quality and delivery assurance.

Company Services

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Mon 11/21 - Wed 11/23: 9 AM - 8 PM
Thu 11/24: closed - Happy Thanksgiving!
Fri 11/25: 8 AM - 10 PM
Sat 11/26 - Sun 11/27: 10 AM - 9 PM
(all hours are Eastern Time)