ML2032 3V 65mAh Rechargeable Lithium Aluminum Alloy Battery
- Omnergy
- Yichang
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High-capacity ML2032 3V 65mAh rechargeable button cell. Industry-standard φ20.0x3.2mm footprint, 600-cycle life, -20°C to +70°C thermal range. Ideal for NB, POS terminals, and security CMOS retention.
ML2032 3V 65mAh Rechargeable Lithium Aluminum Alloy Button Cell Battery
The Standard 2032 Footprint. Maximized 65mAh Capacity for Long-Term Data Integrity.
For industrial hardware platforms and high-density computing architectures, memory preservation is non-negotiable. The ML2032 3V 65mAh Rechargeable Lithium Aluminum Alloy Battery delivers the ultimate power buffer. It fits into the globally recognized 2032 hardware footprint while providing the high capacity required by modern, data-heavy systems.
With physical dimensions of φ20.0 × 3.2mm and weighing 3.1g, this secondary cell provides a robust 65mAh energy reservoir. It serves as a permanent, maintenance-free power backup that eliminates the logistics and downtime associated with field-replacing disposable primary batteries.
Technical Specifications of ML2032 rechargeable battery
| Engineering Parameter | Certified Value |
| Model Number | ML2032 |
| Chemical Composition | Lithium Aluminum Alloy (Rechargeable Secondary Cell) |
| Nominal Voltage | 3.0V |
| Nominal Capacity | 65mAh |
| Dimensions | Diameter: φ20.0mm × Height: 3.2mm |
| Net Weight | 3.1g |
| Operating Temperature Range | -20°C to +70°C |
| Cycle Performance Profile | 600 cycles (Standard) / 300 cycles (Deep Discharge Profile) |
| Terminal Mounting Options | Surface Mount (SMT Tabs), Thru-Hole Pins, Wire-Connector Assemblies |
Full Series of ML 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 |
Core Engineering Advantages & B2B Value
1. Drop-In Replacement for Standard 2032 Footprints
Because it uses the classic φ20.0 × 3.2mm geometry, the ML2032 integrates directly into existing battery cages and PCB layouts designed for the 2032 size profile. This allows engineering teams to upgrade a device from a primary (disposable) layout to a sustainable, rechargeable architecture without requiring a costly mainboard redesign.
2. High-Capacity 65mAh Operational Runway
The ML2032 represents the upper tier of rechargeable coin cell capacity. Delivering 65mAh at a stable 3V, it easily handles extended system power outages, support loops for multiple onboard chips, and micro-amp pulse demands that would rapidly deplete smaller cells like the ML2016 or ML1220.
3. Extended 600/300 Cycle Lifecycle
Built with an optimized lithium aluminum alloy chemistry, this cell is rated for 600 standard cycles (and up to 300 deep discharge retention cycles). In typical trickle-charged real-time clock (RTC) environments where deep drains are rare, the battery provides a maintenance-free service life that matches the 10+ year operational cycle of industrial capital equipment.
4. Climate-Resilient Chemistry (-20°C to +70°C)
The stable internal matrix suppresses passivation and voltage lag in sub-zero environments (-20°C) while resisting internal pressure buildup and electrolyte degradation in high-heat industrial enclosures (+70°C).
Primary Application Fields
Hardware architects and global procurement managers specify the ML2032 for infrastructure requiring long-term data security:
Notebooks & Enterprise Servers (NB): Supplies long-duration backup power to the CMOS/RTC matrix, ensuring that server configurations, encryption logs, and system clocks remain intact during long shipping periods or main battery swaps.
Commercial Security & Surveillance Systems: Acts as the primary data fail-safe for enterprise smart locks, access control panels, and outdoor IP cameras, protecting transaction histories and encryption keys during grid failures.
Point-of-Sale (POS) Terminal Hubs: Safeguards critical cryptographic keys, local merchant data, and internal audit trails within desktop and mobile payment devices, ensuring compliance with PCI-DSS data standards.
Industrial 3D Printers: Maintains mainboard memory logs, extruder calibration values, and coordinate tracking metrics, allowing heavy machinery to recover smoothly from localized facility power drops.
Factory-Direct B2B Supply & Custom Manufacturing
As a dedicated component manufacturer, we deliver scalable supply chains tailored for automated assembly lines.
Precision Solder Customization: We offer automated factory welding for horizontal SMT tabs, vertical dip pins, or custom wire harnesses to match your pick-and-place or wave-soldering workflows.
Global Compliance Assured: Every batch undergoes strict quality control and leakage verification, conforming fully to RoHS, CE, and UN38.3 safety parameters.
Predictable Logistics: Benefit from structured volume tier pricing, stable lead times, and direct engineering-to-engineering (E2E) technical consultation.
Frequently Asked Questions
Q1: Can I replace a standard disposable CR2032 with this rechargeable ML2032?
A: Not directly without verifying the circuit. While they share identical dimensions (φ20.0 × 3.2mm), the ML2032 is a rechargeable (secondary) battery, whereas the CR2032 is a disposable (primary) cell. The host PCB must include a low-current trickle charging circuit to charge the ML2032; otherwise, the battery will eventually discharge without replenishing.
Q2: Why choose an ML2032 over an ML2016 or ML2020?
A: The ML2032 is thicker (3.2mm) than the ML2016 (1.6mm) and ML2020 (2.0mm). This extra volume allows it to hold a 65mAh capacity—more than double the capacity of the ML2016 (30mAh). Choose the ML2032 if your device requires a longer backup runway or drives a higher standby current draw.
Q3: How does the 600/300 cycle characteristic affect the battery's service life?
A: In most hardware applications, the battery handles shallow micro-cycles rather than complete discharges. Under these conditions, the ML2032 easily exceeds its nominal 600-cycle threshold, meaning it will typically last the entire operational lifespan of your device without requiring field servicing.
