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ML2016 3V 30mAh Rechargeable Lithium Aluminum Alloy Button Cell Battery
Low-Profile Architecture. Sustained Backup Power for Critical Circuitry.
Modern hardware engineering demands zero downtime for non-volatile memory and system clocks, even when primary power systems fail. The ML2016 3V 30mAh Rechargeable Lithium Aluminum Alloy Battery provides a highly stable, long-life backup solution engineered specifically for space-constrained, high-density PCBs.
With an ultra-slim profile of just 1.6mm and a diameter of 20.0mm, this secondary cell delivers an optimized 30mAh capacity. It serves as a permanent, maintenance-free energy reservoir, eliminating the need for periodic battery replacements over the device lifecycle.
Technical Parameters of ML2016 rechargeable battery
| Product Name | ML2016 Rechargeable Lithium Coin Cell |
| Nominal Discharge current | 0.2mA |
| Nominal Voltage | 3V |
| Nominal Capacity | 30(mAh) |
| Continuous standard load | 15(kΩ) |
| Nominal Charge current | 2.9mA |
| Operating temperature | -20℃~70℃ |
| Weight | 1.8（g） |
| UL Recognition | MH29853 |
| Storage temperature range | 0℃-30℃ |
Full Series of ML Type Rechargeable Lithium Coin Cells
| Model | Nominal Voltage(V） | Nominal Current (mA) | Nominal Capacity (mAh) | Charge-Discharge Cycle Characteristics Number of Cycles 10% DOD / 20% DOD |
Max Dimension (mm) | Working Temperature（℃） | Weight（g） |
| ML1220 | 3 | 0.1 | 18 | 300/120 | φ12.5×2.0 | -20~+70 | 0.8 |
| ML1225 | 3 | 0.1 | 25 | 300/120 | φ12.5×2.5 | -20~+70 | 0.9 |
| ML 2016 | 3 | 0.2 | 30 | 400/180 | φ20.0×1.6 | -20~+70 | 1.8 |
| ML 2020 | 3 | 0.2 | 40 | 400/180 | φ20.0×2.0 | -20~+70 | 2.2 |
| ML 2032 | 3 | 0.2 | 65 | 600/300 | φ20.0×3.2 | -20~+70 | 3.1 |
| ML 2430 | 3 | 0.3 | 100 | 1000/500 | φ24.5×3.0 | -20~+70 | 4.2 |
Engineered Advantages & B2B Benefits
1. Ultra-Low Profile SMT Compatibility
At a thickness of only 1.6mm, the ML2016 fits seamlessly into ultra-thin product enclosures. Its wide, flat footprint ensures excellent stability during automated pick-and-place surface mount (SMT) processes, saving crucial vertical overhead on multi-layered PCBs.
2. Advanced 400/180 Cycle Performance
Utilizing a highly stable lithium aluminum alloy anode, this cell is rated for 400 standard charge/discharge cycles (and up to 120-180 cycles under deep discharge retention variables). It matches the operational lifespan of commercial electronics, drastically reducing the Total Cost of Ownership (TCO).
3. Broad Temperature Stabilization (-20°C to +70°C)
Industrial hardware must endure volatile thermal environments. The internal chemical matrix of the ML2016 is designed to mitigate passivation at sub-zero temperatures (-20°C) and prevent thermal runaway or excessive self-discharge in high-heat zones (+70°C).
4. Flat Discharge Curve
Maintains a steady 3.0V output throughout its discharge cycle, ensuring sensitive real-time clocks (RTC) and security encryption chips receive clean power without voltage sags that trigger false system resets.
Key Industry Applications
Procurement managers and hardware architects specify the ML2016 across several core industrial sectors:
Why Source Your ML2016 Supply From Us?
Frequently Asked Questions
Q1: Can an ML2016 replace a standard CR2016 battery?
A: No, they are not direct drop-in replacements without circuit modifications. The ML2016 is a secondary (rechargeable) battery requiring an active trickle-charging circuit from the host device. The CR2016 is a primary (disposable) lithium cell. Replacing a CR cell with an ML cell without a charge circuit will result in eventual depletion without recharge.
Q2: What is the main structural advantage of the ML2016 over the ML1220 or ML1225?
A: The ML2016 features a wider diameter (20.0mm vs. 12.5mm) but a significantly lower thickness (1.6mm). This low-profile geometry allows it to hold a higher capacity (30mAh) compared to the ML1220 (18mAh) or ML1225 (25mAh), while consuming less vertical space inside thin devices.
Q3: How does the 400/180 cycle characteristic impact product lifespan?
A: In most RTC and CMOS configurations, the battery experiences shallow micro-cycles. Under these conditions, the ML2016 easily achieves over 400 cycles, providing a reliable operational backup life that typically spans 5 to 10 years, aligning perfectly with industrial equipment lifecycles.
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