72V 40Ah Lithium Battery - OEM Manufacturer from China

Description

This battery is the 72V 40Ah Lithium Battery, manufactured by Redway Power, a leading factory in China specializing in high-performance lithium-ion batteries. Designed for electric motorcycles, e-scooters, and other electric vehicles, this battery provides reliable power and exceptional efficiency for various applications.

Key Features

High Energy Capacity: With a nominal capacity of 40Ah and an energy output of 15.36 kWh, this battery ensures long-lasting performance for demanding applications.
Durable Construction: Featuring an IP65 rating, this battery is resistant to dust and water, making it suitable for outdoor use and harsh environments.
Extended Cycle Life: Capable of over 6,000 cycles at 80% depth of discharge (DOD), this battery minimizes the need for frequent replacements, ensuring long-term reliability.
Advanced Battery Management System (BMS): The intelligent BMS protects against overcharging, overheating, and short circuits, ensuring safe operation during use.
Customizable Options: Redway Power offers OEM and ODM services, allowing for tailored solutions to meet specific customer requirements.

Applications

The 72V 40Ah Lithium Battery is versatile and ideal for a variety of applications, including:

Electric motorcycles
E-scooters
Electric rickshaws and tricycles
Golf carts
Low-speed vehicles (LSVs)
Electric cabin scooters

With a maximum charging voltage of 84V and a discharge cut-off voltage of 54V, this battery is optimized for various operational needs. It operates effectively across a temperature range from -20°C to 60°C, making it adaptable to different environments.The compact design allows for easy installation while ensuring that your equipment operates efficiently throughout the day. Additionally, it supports fast charging capabilities, enabling quicker turnaround times between uses.

As a trusted manufacturer, Redway Power is committed to delivering high-quality lithium-ion batteries that enhance productivity and sustainability in your operations. The 72V 40Ah Lithium Battery not only reduces downtime but also contributes to lower operational costs due to its efficiency and long lifespan.Investing in this battery means choosing a reliable power solution that meets the demands of modern electric vehicles while supporting your business’s growth and sustainability goals. Choose Redway Power for your lithium battery needs and experience unparalleled performance and service.

Specifications

72V 40Ah	Specifications
Cell Type	NCM, 18650 (20S16P)
Nominal Voltage	72V
Nominal Capacity	40Ah
Nominal Energy	2880Wh
Max Charge Voltage	84V
Discharge Cut-off Voltage	55V
Standard Charge Current	4A
Max. Continues Charge Current	20A
Max. Continues Discharge Current	60A
Peak Discharge Current	80A (3s)
Dimensions [L x W x H]	410 x 180 x 150 mm
Weight	16 kg
IP Rating	IP65
Internal Resistance	≤30mΩ
Cycle Life	>1500 cycles (DOD 80%)
Self-Discharge	2% (Per month)
Charge Temperature	0°C ~ 50°C
Discharge Temperature	-20°C ~ 60°C
Optional Functions	Bluetooth / WiFi / LCD / LED Touch Screen / RS485 / RS232 / CAN / 4G, 5G / GPS / APP
Design Life	10 Years
Warranty	3 Years
Silk-Screen / Label Printing	Yes
User Manual / Warranty Card	Yes
Customization / OEM / ODM	Yes
Shipment	Yes
Applications	72V 3000W Motor of Electric Motorcycle or Electric Scooter

APPLICATIONS AND FAQS

How many cells are in a 72V 40Ah battery?

A 72V 40Ah battery typically consists of 20 cells connected in series, assuming each cell has a nominal voltage of 3.6V. This configuration allows the total voltage to reach approximately 72V when fully charged.

What is the difference between 48V and 72V?

The primary difference between 48V and 72V systems is their voltage output. A 72V system generally provides more power and efficiency, allowing for higher speeds in applications like electric vehicles, while a 48V system is often sufficient for standard applications with lower power demands.

What is full charge of a 72V lithium battery?

A fully charged 72V lithium battery typically reaches a voltage of around 83.95V, depending on the specific chemistry used. This is based on the standard charging voltage for lithium-ion cells, which is approximately 4.2V per cell.

What is the most expensive part of a lithium-ion battery?

The most expensive part of a lithium-ion battery is typically the battery cells themselves, which contain valuable materials like lithium, cobalt, and nickel. Additionally, advanced Battery Management Systems (BMS) that ensure safety and performance can also contribute significantly to the overall cost.

What size solar panel to charge a 40Ah battery?

To charge a 40Ah battery, a solar panel rated at approximately 100W to 200W is recommended, depending on sunlight conditions and efficiency. This setup allows for efficient charging within about 5-10 hours of peak sunlight.

How long does it take to charge a 40Ah battery?

Charging a 40Ah battery typically takes around 4 to 8 hours, depending on the charger’s output current. For example, using an 8A charger, it would take approximately 5 hours to fully charge from a low state of charge.

Do batteries with higher Ah last longer?

Yes, batteries with higher Ah (amp-hour) ratings can provide power for longer periods compared to lower-rated batteries under similar load conditions. However, they do not necessarily last longer in terms of lifespan; that depends on usage patterns and maintenance.

How many watts is a 40Ah battery?

A 40Ah battery at a nominal voltage of 12V has an energy capacity of:

This means it can provide up to 480 watts for one hour.

What is the range of a 72V 35Ah lithium battery?

A 72V 35Ah lithium battery has an energy capacity of approximately 2520 watt-hours (Wh). If consuming about 1000W, it could provide around 2.5 hours of runtime or about 25 miles, depending on the efficiency of the vehicle.

What is the range of the 72V 40Ah lithium battery?

A 72V 40Ah lithium battery has an energy capacity of approximately 2880 watt-hours (Wh). If consuming around 1000W, it could provide about 2.88 hours of runtime or roughly 28-30 miles, depending on vehicle efficiency and load conditions.

How many cells are in a 72V 40Ah battery?

What is full charge of a 72V lithium battery?

A fully charged 72V lithium battery typically reaches around 83.95V, based on standard charging voltages for lithium-ion chemistry, which are approximately 4.2V per cell multiplied by the number of cells in series.

What is the difference between 48V and 72V?

The primary difference between 48V and 72V systems lies in their voltage output and power delivery capabilities. A 72V system generally allows for higher speeds and efficiency in electric vehicles compared to a standard 48V system, which is often used for less demanding applications.

What is the range of a 72V 30Ah lithium battery?

A 72V 30Ah lithium battery has an energy capacity of approximately 2160 watt-hours (Wh). If consuming about 1000W, it could provide around 2.16 hours of runtime or roughly about 21-22 miles, depending on vehicle efficiency and load conditions.

How fast is 72V 3000W in mph?

A system rated at 3000W with 72 volts can achieve speeds up to approximately 25-35 mph, depending on factors such as vehicle weight, aerodynamics, and terrain conditions. Performance enhancements may increase speed further.

Is 72V safe?

Yes, a properly designed and maintained 72V system is generally safe for use. However, it requires appropriate safety measures, including using components rated for higher voltage and ensuring proper insulation and protection against short circuits to prevent accidents.

What are the disadvantages of LiFePO4?

Disadvantages of Lithium Iron Phosphate (LiFePO4) batteries include lower energy density compared to other lithium chemistries, making them bulkier for equivalent capacities. They also tend to have higher upfront costs than traditional lead-acid batteries despite their longevity and safety benefits.

What is the mileage of a 48V 40Ah lithium-ion battery?

The mileage of a 48V 40Ah lithium-ion battery depends on various factors such as vehicle efficiency and load conditions. Generally, it can provide around 20-30 miles per charge if consuming approximately 500-1000W during operation.

How long does it take to charge a 40Ah lithium battery?

Charging a 40Ah lithium battery typically takes around 4-8 hours depending on the charger's output current. For example, using an 8A charger would take about 5 hours to fully charge from a low state of charge.