
18650 3.2V 1500mAh LiFePO4 Battery
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
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)











