36650 25.2V 70Ah LiFePO4 Battery Pack

Product Number:
05DQ0057-01
Nominal voltage:
25.6V
Nominal capacity:
70Ah
Battery Configuration:
26650-8S21P
Dimension:
400×262×160mm
Application:
air purifier
RS485/CAN communication,aluminum housing protection,high capacity energy storage
Product Overview

This lithium battery is designed for air purifiers used in residential and commercial environments. It delivers stable high-capacity output with durable aluminum housing, ensuring continuous filtration and reliable long-term operation in compact device structures.

Electrical Specifications

Attribute Parameter
Product Number 05DQ0057-01
Cell Model 26650-3400mAh-3.2V
Battery Configuration 26650-8S21P
Nominal Voltage 25.6V
Nominal Capacity 70Ah
Rated Energy 1792Wh
Charging Voltage 29.2V
Discharge Cut-off Voltage 20V
Standard Charging Current ≤20A
Standard Discharge Current 13A
Internal Resistance ≤300mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0~45℃
Discharge Temperature -20~60℃
Storage Temperature -20~35℃
Dimensions 400×262×160mm
Weight 16Kg
Output Type Aviation connector
Battery Case Aluminum alloy
Communication Protocol RS485 / CAN (optional, 9600bps)
Protection System Short-circuit / Overcharge / Overdischarge / Overcurrent protection

Application Background

This battery pack is designed for air purification equipment used in residential, commercial, and industrial environments. The system requires stable long-term power support to ensure continuous filtration, monitoring, and fan operation under compact internal installation conditions.

Project Challenges

Continuous operation required for 12–24 hours in purification scenarios
Sustained load from fan motor and sensing system causes power fluctuation risk
Frequent daily cycling demands stable cycle life performance
Large capacity requirement within limited enclosure space

Customized Battery Solution

25.6V high-capacity LiFePO4 platform: ensures stable and continuous power supply
Aluminum alloy housing: improves structural strength and installation reliability
Multi-protection BMS: overcharge, overdischarge, overcurrent, and short-circuit protection
Communication-enabled system: RS485/CAN optional for real-time monitoring and system integration

Application Results

Supports long-duration continuous purification operation (12–24h)
Improved output stability under continuous fan and sensor load
Enhanced safety and reliability in long-cycle daily operation
Extended service life with reduced maintenance frequency

We support flexible customization based on your project requirements, including:

  • Voltage range: 3.2V – 72V
  • Capacity range: 100mAh – 100Ah
  • Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
  • Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
  • BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.