3.2V 15Ah LiFePO4 Cylindrical Cell – UN38.3 Approved 32140/33140 Battery for Electric Vehicle, Off-Grid Solar, E-Bike Pack & DIY 12V/24V/48V Assembly

3.2V 15Ah LiFePO4 Cylindrical Cell – UN38.3 Approved 32140/33140 Battery for Electric Vehicle, Off-Grid Solar & E-Bike DIY Pack

Cell Diagram

Cell Picture:

Testing curves

What is an Lifepo4?

Benergy 32140 LiFePO4 cell (3.2V 15Ah) is a cylindrical lithium iron phosphate battery designed for applications requiring a balance of high power, long cycle life, and absolute safety. Unlike traditional lead-acid batteries, this LiFePO4 cell delivers stable performance across a wide temperature range and thousands of deep discharge cycles.

Key Specifications at a Glance:

• Nominal Voltage: 3.2V

• Capacity: 15Ah

• Discharge Cut-off Voltage: 2.5V

• Max Continuous Discharge Current: 30A (2C)

• Internal Resistance: ≤ 3.0mΩ (low heat generation)

• Max Charge Voltage: 3.65V

• Operating Temperature: -20℃ to 60℃ (charge & discharge)

Why Choose This 32140 Cylindrical Cell?

1. High Energy Density & Power Delivery
   Despite its compact cylindrical form factor, the 32140 LiFePO4 cell packs significant energy. It supports a 30A continuous discharge current, making it suitable for electric vehicles (EVs), e-bikes, power tools, and other high-drain devices.

2. Long Cycle Life for Cost-Effective Storage
   With a stable lithium iron phosphate chemistry, this cell typically achieves 2000+ cycles at 80% depth of discharge (DoD). This translates to years of reliable service in solar energy storage systems and UPS backup applications, drastically lowering your total cost of ownership.

3. Built-in Safety & Thermal Stability
   LiFePO4 chemistry is inherently safer than other lithium-ion types. The 32140 cell features low self-discharge rate, no thermal runaway risk under normal use, and excellent performance even at extreme temperatures (-20℃ to 60℃). It is also UN38.3 certified for safe transport.

4. Versatile Applications
   Whether you are building a DIY battery pack for an off-grid solar system, upgrading an electric vehicle, or designing a smart grid / UPS backup, the 32140 LiFePO4 cell offers a reliable, drop-in ready solution. Its low internal resistance (6.5mΩ) ensures efficient charging and discharging with minimal energy loss.

Ideal For:

• Electric vehicles (EV, golf carts, e-bikes)

• Residential & commercial solar storage

• UPS (uninterruptible power supply) systems

• Smart grid energy storage

• Portable power stations & DIY power walls

Why choose Benergy Lifepo4? 

Design:

Safety is the most important for battery using.

Brand:

Welcome OEM, ODM.

 

Quality:

 

* Professional Lithium Iron Phosphate Cell Maker since 2009 when Lifepo4 cell technology is still quite new.

* All cells are Level A  100% New Lifepo4 Cells

* 3.2V single lifepo4 cells , available both Aluminum Shell and Plastic Shell Prismatic Cells.

* With bar code/ QR code, can trace every cell information for the whole production process.

* Strict testing during every production step. Final testing before shipping.

* Provide testing data of each cell before shipping.

 

Service

* Fast delivery for sample orders and mass orders.

* Can do OEM and ODM for customers.

* Can customize the battery pack based on customer's detail requirement.

*  If any problem, we provide warranty for our batteries. and fast after-sale feedback and solutions. 

 

 

Production machine and production line

 

 

 

Application:

 

Lifepo4 Cell 32140 33140 can be widely use for solar system, Robot, AGV, electric vehicles, power tools, UPS and so on.

 

 

Certification:

FAQ:

 

Q1: What is LiFePO4 32140 Cell?

A1: LiFePO4 32140 Cell is a rechargeable lithium iron phosphate battery produced by Benergy, with model number BGX-32140, manufactured in China.

 

Q2: What is the voltage of Benergy BGX-32140?

A2: Benergy BGX-32140 has a nominal voltage of 3.2V.

 

Q3: What is the capacity of Benergy BNG3214015?

A3: Benergy BGX-32140 has a nominal capacity of 15Ah.

 

Q4: What are the size and weight of Benergy BGX-327006?

A4: Benergy BGX-32140 has a size of 32mm*140mm  and a weight of 0.295kg.

 

Q5: Does Benergy BGX-32140 include a protection circuit module?

A5: Yes, Benergy BGX-32140 includes a protection circuit module.