12V 40Ah Lifepo4 Battery
- Compact 12V LiFePO4 Power for Everyday Applications: This 12.8V 40Ah LiFePO4 battery is built for compact power systems that need reliable deep cycle performance in a lighter and more efficient format.
- Built-In Bluetooth Monitoring: Bluetooth APP support allows users to view battery information, monitor system status, and manage battery functions from a compatible mobile device.
- Internal Heating for Cold-Weather Charging: The built-in heating function activates automatically during charging in low temperatures, helping support safer charging in colder environments.
- 40Ah Capacity with 512Wh Energy Storage: This battery is rated at 12.8V, 40Ah, and 512Wh, making it a practical option for small 12V power systems and portable energy applications.
- Supports Series and Parallel Expansion: Up to 4 batteries can be connected in parallel for higher capacity, or up to 4 in series for systems up to 48V, depending on your application setup.
- Designed with BMS Protection and Deep Cycle Performance: The built-in BMS helps protect against high voltage, low voltage, over-temperature, and other key battery conditions for more dependable long-term use.
Related Products
Pairs well with
Free Shipping丨Delivery in 3–7 Business Days
Shipping from China Warehouse
10-Year Warranty
Dedicated After-Sales Support
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
FAQs
What is this 12.8V 40Ah battery mainly used for?
This battery is designed for compact 12V deep cycle power applications that need reliable lithium performance in a lightweight format. It can be used in compatible small power systems and portable energy setups.
Does this battery have Bluetooth monitoring?
Yes. This model supports a Bluetooth APP that allows users to view battery information, monitor system status, and manage battery functions from a compatible mobile device.
Does it have a built-in heating function?
Yes. The battery includes internal heating. During charging, the heater activates automatically below 41°F (5°C) and stops once the cell temperature reaches 59°F (15°C). Charging protection is also applied at low temperatures.
Can multiple batteries be connected together?
Yes. The manual states that up to 4 batteries can be connected in parallel for higher capacity, and up to 4 batteries can be connected in series for systems up to 48V.
What are the main charging parameters?
The manual lists a max charge voltage of 14.6V, max charge current of 40A, and a recommended charge current of 20A. For bulk/absorption charging, the recommended range is 14.2V to 14.6V.
What protections does the built-in BMS provide?
The built-in BMS helps protect the battery against high voltage, low voltage, high temperature, and low-temperature charging conditions. It also supports passive balancing near the top of the charge cycle.