ML2032 Rechargeable Manganese Button Battery User Manual Product Overview
ML2032 rechargeable manganese button battery, featuring compact size, stable voltage output, and long cycle life. It is designed for low-power devices that require long-term power supply and memory backup, and can directly replace the disposable ML2032 battery (please confirm device compatibility first). 📌 Key Specifications
Nominal Voltage: 3V
Capacity Approx:. 65mAh
Size :20mm (Diameter) × 3.2mm (Thickness)
Battery Type: Rechargeable Manganese Battery
Cycle Life: Up to 500 charge-discharge cycles (under proper use)
Operating Temperature: -20℃ ~ 60℃
Compatible Devices
Ideal for low-power electronic devices that support rechargeable button batteries. Common applications include:
Computer & Industrial Equipment: Motherboard RTC/CMOS memory backup (saves BIOS settings, system time), embedded devices, PLC, sensor modules, Raspberry Pi and other single-board computer RTC power supply, industrial meters, data loggers (power-off data protection)
Consumer Electronics: Smart watches, fitness trackers, electronic tags (e.g., ), electronic scales, thermometers, smart door lock backup power, remote controls, small toys, Bluetooth headphone cases (auxiliary power), electronic dictionaries, calculators
Medical & Security Devices: Portable medical equipment (e.g., blood glucose meters, thermometers, requires device support for charging), smoke alarms, door/window sensors (backup battery)
Automotive & Others: Car keys, tire pressure monitoring sensors (TPMS), small LED indicators, portable voice recorders
📝 How to Use
1.Check Compatibility: Confirm that your device supports 3V rechargeable button batteries and that the physical size (20mm×3.2mm) matches (same as ML2032).
2.Battery Installation: Open the device's battery compartment, align the positive (+) and negative (-) poles of the battery with the marks in the compartment (usually the positive pole faces outward), and insert the battery firmly.
3.Charging Guide: Use a specialized button battery charger (output voltage 3.7V~4.2V, current 5~10mA). Connect the battery to the charger according to the positive and negative poles, and stop charging when the charger indicates full charge (do not overcharge).
4.Replacement Tips: When replacing the old battery, power off the device first to avoid data loss or device damage. Remove the old battery and install the ML2032 battery as per step 2.
⚠️ Safety Warnings
Please read and follow these warnings carefully to avoid fire, explosion, or personal injury.
Do not use or charge the battery in high-temperature environments (e.g., direct sunlight, near stoves), high humidity, or dusty places.
Do not short-circuit the battery (do not connect positive and negative poles with metal objects), disassemble, squeeze, or puncture the battery.
Do not mix with disposable batteries (e.g., ML2032) for use or charging; do not mix new and old batteries.
Only use a charger specifically designed for button batteries. Using an incompatible charger may cause overcharging, fire, or explosion.
Keep the battery away from children and pets. If swallowed, seek medical attention immediately.
If the battery leaks, swells, or heats up, stop using it immediately and dispose of it properly.
♻️ Disposal & Storage
Disposal: Do not dispose of the battery as household waste. Take it to a designated battery recycling center or electronic waste collection point in accordance with local regulations.
Storage: Store the battery in a cool, dry place (10℃~25℃) with the positive and negative poles insulated (e.g., wrapped in plastic film). Do not store in a fully charged or fully discharged state; keep at 30%~50% charge for long-term storage.