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ML2016
ML2016 Maxell Rechargeable Coin Cell Battery
| Part Number | ML2016 |
|---|---|
| Manufacturer | Maxell |
| Category | Batteries & Power Products > Rechargeable Batteries (Secondary Cells) – Coin / Button Cell |
| Description | Rechargeable Manganese Lithium Coin Cell Battery, 3.0V Nominal Voltage, 25mAh Capacity, Slim 2016 Coin Cell Package, Wide Operating Temperature Range (-20°C to +60°C). |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The ML2016 is a compact, reliable rechargeable manganese lithium coin cell manufactured by Maxell. Designed for space-limited RTC and memory backup applications, this 3.0V secondary battery adopts stable manganese composite oxide positive electrode and lithium-aluminum alloy negative electrode. Packaged in ultra-slim 20.0 mm × 1.6 mm form factor, it delivers stable performance under float charge, operating reliably from -20°C to +60°C. It is an ideal power solution for wearable devices, smart keys, medical instruments, IoT sensors and embedded electronics.
Core Advantages
Ultra-Slim Size & High Energy Density
Only 1.6 mm thick, providing low-profile power backup for slim portable equipment without voltage loss.
Excellent Cycle Life & Overcharge Resistance
Supports hundreds of charge-discharge cycles and maintains stable performance under long-term trickle charging.
Stable 3.0V Discharge Characteristic
Flat discharge curve matches standard 3V logic ICs, simplifying power circuit design.
Low Self-Discharge & Superior Leakage Protection
Adopts Maxell mature sealing technology, featuring low self-discharge rate for long standby service life.
Key Specifications
| Brand | Maxell |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Mercury-Free |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | Coin Cell 2016 (20.0 mm Diameter × 1.6 mm Height) |
| Mounting Type | Coin Cell Holder / PCB Tab Pin Solder Mount |
| Surface Marking / Silkscreen | Maxell ML2016 / 3V, Marking |
| Battery Chemistry | Rechargeable Manganese Lithium (ML) |
| Nominal Voltage | 3.0 V |
| Charging Voltage | 3.1 V to 3.3 V (Standard 3.25 V) |
| Nominal Capacity | 25 mAh |
| Standard Continuous Current | 0.2 mA |
| Cut-off Discharge Voltage | 2.0 V |
| Max Pulse Current | 1.0 mA |
| Operating Temperature Range | -20°C to +60°C |
| Storage Temperature | -10°C to +40°C |
| Weight | Approx. 1.8 g |
| Packaging Format | Tray / Blister Pack / Bulk |
| Cycle Life | Approx. 300 cycles |
Precautions
- Charging Voltage Control: Always keep charging voltage within 3.1V ~ 3.3V (typical 3.25V). Overcharging above 3.5V will lead to permanent capacity degradation.
- Do Not Short-Circuit: External short circuit generates excessive current, resulting in heat buildup, component damage or shortened service life.
- Do Not Heat or Incinerate: Do not expose battery above +85°C, burn it or disassemble the cell casing.
- Observe Correct Polarity: Confirm positive (+) and negative (-) polarity during PCB assembly and installation into battery holders.
- Do Not Direct Solder: Avoid direct high-temperature soldering on cell body. Use pre-welded tabs or dedicated coin cell holders for mounting.
Typical Applications
- Real-Time Clock (RTC) and SRAM memory backup in compact laptops, handheld terminals, and smart meters
- Smart key fobs, keyless entry transmitters, and automotive remote controls
- Portable medical instruments, health monitoring devices, and wearable electronics
- Industrial control boards, IoT sensor nodes, and security monitoring terminals
- Solar-powered auxiliary devices, electronic price tags, and small consumer devices
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS, YFH Standard |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, bulk pricing and custom versions with solder tabs, pins and wire assemblies, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What is the primary difference between ML2016 and ML2032?
A1: Both are 3.0V rechargeable Manganese Lithium batteries with 20.0mm diameter. ML2016 thickness is 1.6mm, capacity 25mAh; ML2032 thickness is 3.2mm, capacity 65mAh. ML2016 suits ultra-slim equipment design.
Q2: Can I use ML2016 to directly replace non-rechargeable CR2016?
A2: Physically compatible. If your PCB has a charging circuit (3.1V~3.3V), it can be charged normally. Without charging circuit, it works as a disposable battery and cannot be recharged.
Q3: Are custom solder tabs and wire leads available for ML2016?
A3: Yes. We supply ML2016 with vertical/horizontal tabs, 2pin/3pin solder terminals and custom wire & connector assemblies.
Q4: What charging mode is recommended for Maxell ML2016?
A4: Constant voltage charging with current-limiting resistor is recommended. Set charging voltage to 3.25V ±0.05V with series resistor to limit surge charging current.
Q5: What products can ML2016 be used for backup power?
A5: Suitable for RTC clock, SRAM memory backup, wearable devices, smart keys, IoT sensors, portable medical equipment and small embedded modules.
Q6: What alternative models can be considered if ML2016 is out of stock?
A6: For rechargeable solution: ML2032 (larger capacity, thicker size). For one-time power supply: CR2016. Note: CR2016 cannot be charged, do not mix charging circuits for different battery types.
Q7: What is the operating temperature range of ML2016?
A7: Operating temperature: -20°C ~ +60°C. Long-term usage beyond this range will shorten cycle life and cause capacity attenuation.
Q8: Can I solder wires directly onto the ML2016 cell body?
A8: Not recommended. High temperature direct soldering will damage internal sealing structure. Please adopt prefabricated tab version or standard coin cell battery holder.
Q9: How long is the shelf life of unused ML2016?
A9: Under recommended storage temperature (-10°C ~ +40°C), low self-discharge design keeps stable performance for up to 2 years.
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