18650 3.2V 1500mAh LiFePO4 Battery

Product Number:
37DZ076-03
Nominal voltage:
3.2V
Nominal capacity:
1500mAh
Battery Configuration:
18650-1S1P
Dimension:
18.5 × 67.3mm
Application:
Backup battery
LiFePO4 chemistry, Low internal resistance, Wide temperature range
Product Overview

This is a LiFePO4 access control backup battery designed for door access systems, smart security devices, and emergency power supply scenarios. With stable 3.2V output, wide-temperature performance, and compact cylindrical structure, it ensures reliable standby operation and stable backup power in critical situations.

Electrical Specifications

Attribute Parameter
Product Number 37DZ076-03
Cell Model 18650/3.2V/1500mAh
Battery Configuration 18650-1S1P
Nominal Voltage 3.2V
Nominal Capacity 1500mAh
Rated Energy 4.8Wh
Charging Voltage 3.65V
Discharge Cut-off Voltage 2.0V
Standard Charging Current ≤1.5A
Standard Discharge Current ≤1.5A
Internal Resistance ≤60mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0~45℃
Discharge Temperature -20~60℃
Storage Temperature -20~45℃
Dimensions 18.5 × 67.3mm
Weight 45g

Application Background

This battery solution is designed for access control backup power systems, suitable for building access control, smart security, and emergency backup power applications.

Access control devices require long-term standby operation and stable emergency power supply during unexpected outages, creating high demands for safety, cycle life, and wide-temperature performance.

Project Challenges

Access control systems require 24-hour continuous standby operation
Backup power must switch instantly during power outages to maintain stable operation
Limited installation space requires a compact battery structure
Outdoor and complex environments require stable operation from -20℃ to 60℃

Customized Battery Solution

LiFePO4 chemistry: stable 3.2V output platform with enhanced safety and long cycle life
Low internal resistance design: ≤60mΩ resistance ensures fast emergency power response
Wide-temperature performance: stable operation from -20℃ to 60℃
Compact lightweight structure: 45g cylindrical design fits compact access control systems

Application Results

Supports long-term stable standby operation for access control systems
Stable emergency switching improves system reliability by approximately 20%+
Lightweight design simplifies equipment integration and installation
Stable cycle performance extends backup power service life

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.