AJPOWER Product Introduction

AJ36090 38.4V 90Ah Heavy-Duty Power Battery for Electric Bikes

Powering Progress, One Battery at a Time: Embrace Our Sustainable Energy Solutions

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AJ36090 38.4V 90Ah Heavy-Duty Power Battery for Electric Bikes

Product advantages



Exceptional cycle life

our batteries maintain over 80% of their capacity even after enduring 3,500 cycles of 1C charge and discharge at 100% depth of discharge (DOD). Designed to last up to 10 years, they offer a reliable and long-lasting energy solution.


our batteries weigh a mere 25% of their equivalent lead-acid counterparts, providing a significant reduction in overall weight.

Easily expandable

our batteries can be effortlessly extended in parallel or series configurations to achieve greater capacity or voltage levels, offering enhanced flexibility and scalability.

High-speed charging at 1C rate

Capable of delivering heavy-duty output with a continuous discharge of up to 1.5C and a pulse discharge of 10C, ensuring rapid charging and robust performance.


Our LiFePO4 batteries exhibit exceptional thermal and chemical stability, incorporating a comprehensive array of built-in protection functions such as overcharge protection, overdischarge protection, overheat protection, and short circuit protection, among others. 

Production information



Model Nominal Voltage Nominal Capacity Stored Energy Weight Dimension (LxWxH)
36090 38.4V 90A 3.45kWh 33kg 430x290x225mm
Operating Current Protective Current Serial Connection Parallel Connection IP Protection Peak Discharge Current
100A 110A Max1S Max4P IP 67 400A


 Product Features


LONG LIFELong-Lasting Performance: Our batteries are designed to have an impressive lifespan of 10 years, surpassing the longevity of traditional lead-acid batteries by over three times. 

ULTRA SAFEUncompromising Safety: Our batteries offer unparalleled thermal and chemical stability, providing a secure and reliable energy storage solution. With a comprehensive array of built-in protection functions, including safeguards against overcharging, overdischarging, overheating, and short circuits, our batteries ensure the highest level of safety in all applications.

ALL-WEATHER PERFORMANCEALL-WEATHER PERFORMANCE: Our batteries are designed to operate flawlessly in extreme temperatures, withstanding as low as -4°F (-20°C). Additionally, for enhanced versatility, our batteries offer an optional self-heating function, allowing them to be recharged efficiently even in cold environments.

FAST CHARGE ANY TIMERapid Recharge Anytime: Our power batteries offer an exceptional charging speed that surpasses traditional lead-acid batteries. With our advanced technology, you can quickly recharge your batteries during short breaks.

LOW SELF-DISCHARGEMinimal Self-discharge: Our batteries boast an impressively low self-discharge rate, maintaining their charge at a level below 3% per month. This ensures that the stored energy remains available for an extended period, allowing you to rely on our batteries whenever you need them, even after prolonged periods of inactivity. 

COST EFFECTIVECost-Effective Solution: Maximize your savings with our power batteries that provide a cost-effective energy solution. With minimal maintenance requirements and an exceptional lifespan, our batteries offer a smart investment that ensures a rapid return on investment and significant long-term cost savings. 

ECO-FRIENDLYEnvironmentally Friendly Solution: Choose our power batteries for a green and sustainable energy solution. With a commitment to environmental responsibility, our batteries eliminate the risks of acid spills, harmful emissions, and corrosive effects. 

ZERO MAINTENANCEEffortless Performance: Enjoy the convenience of our hassle-free power batteries. Engineered with sealed units, they eliminate the need for maintenance, providing you with a seamless and uninterrupted experience. 

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, your trusted partner for comprehensive energy solutions, has obtained ISO9001 certification from TUV Rheinland since its establishment. Our extensive range of products encompasses power battery systems, household energy storage systems, RV energy storage systems, portable power stations, and a wide range of accessories.

With the support of our dedicated R&D team, we are dedicated to offering not only standard products but also tailored solutions to meet your unique requirements. Our commitment to excellence permeates every aspect of our service, ensuring your complete satisfaction.

who we are

We provide a comprehensive range of energy solutions to meet diverse needs. Our product offerings include solar panels, 51.2V series LiFePO4 batteries, solar charge controllers, and inverters or hybrid inverters. Whether you require off-grid or on-grid solutions, we have you covered. Our household energy solutions offer capacities ranging from 5KWh to 60KWh, ensuring reliable power for your home. For off-grid vehicles, we offer a range of components such as flexible solar panels, solar charge controllers, LiFePO4 batteries in 12V or 24V configurations, pure sine wave inverters, and DC converter chargers or battery chargers.

To provide portable power, we offer a variety of power stations with capacities ranging from 300W to 3000W. Complementing our power stations, we provide foldable solar panels utilizing PET and ETFE technology, delivering exceptional charge efficiency of 23.2%.

Moreover, we understand the unique requirements of different industries and fields. That's why we specialize in developing customized IoT solutions tailored to your specific needs. Our goal is to offer versatile and innovative energy solutions that adapt to the evolving demands of our customers.


Company Services

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