LIR2450 Wholesale for IoT & Smart Lock Applications: Technical B2B Sourcing Guide 2026

As the global IoT ecosystem accelerates, the LIR2450 rechargeable coin cell battery has emerged as the preferred power source for high-drain wireless sensor networks, smart home controllers, and commercial access-control systems. Unlike the ubiquitous LIR2032 (32mAh), the LIR2450 delivers 110–120mAh — making it the right choice for power-hungry Zigbee nodes, BLE beacons, and electronic smart locks that must operate continuously for 12–24 months between charges.

This guide is written specifically for B2B distributors, IoT hardware integrators, and Amazon FBA private-label sellers evaluating LIR2450 wholesale procurement from direct-factory manufacturers.

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1. LIR2450 Physical & Electrochemical Specifications

| Parameter | LIR2450 Specification | |---|---| | Diameter | 24.5mm | | Height (Thickness) | 5.0mm | | Nominal Voltage | 3.6V – 3.7V | | Full Charge Voltage | 4.20V ± 0.05V | | Typical Capacity | 110 – 120mAh | | Max Continuous Discharge | 50mA (0.5C) | | Charge Method | CC/CV 30–50mA micro-current | | Cycle Life | 500+ full cycles | | Operating Temperature | -20°C to +60°C | | Self-Discharge Rate | <3% per month at 25°C | | Chemistry | Lithium-Ion (Li-ion) | | Replaces | CR2450 (3.0V disposable) |

[!IMPORTANT]

The LIR2450 operates at 3.7V nominal / 4.2V peak, while the disposable CR2450 outputs 3.0V. Always verify that your target device accepts voltages up to 4.5V. Most modern MCU-based smart locks and Zigbee SoCs (Texas Instruments CC2652, Silicon Labs EFR32) feature wide-range PMICs supporting 2.1V–5.5V input.

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2. Why LIR2450 Dominates Smart Lock & Zigbee Sensor Power Design

A. Smart Lock Power Budgets

A commercial BLE/Zigbee smart door lock typically integrates:

Motor actuation: 200–400mA peak (50ms burst)

BLE/Zigbee radio: 15–25mA during TX

MCU standby: 2–10µA deep sleep

With a 120mAh LIR2450 and a duty cycle of 10 unlocks per day at 50mA/50ms, the standby leakage dominates. At 5µA MCU sleep current, a single LIR2450 theoretically powers a smart lock for 24,000 hours between charges — achievable in low-traffic installations.

B. Zigbee Mesh Sensor Nodes

IEEE 802.15.4 / Zigbee 3.0 end-devices in temperature, humidity, and motion sensor applications typically consume:

20mA during RF transmission (50ms every 30s)

2µA in sleep

Average current draw ≈ 35µA. A 120mAh LIR2450 provides 3,428 hours (≈142 days) of autonomous runtime per charge — and with 500 recharge cycles, total lifetime energy delivery equals 60,000mAh vs a single disposable CR2450's 560mAh.

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3. CC/CV Charging Protocol for LIR2450

[!NOTE]

The VSZAPOWER Universal Coin Cell Dock supports LIR2450 with dedicated spring contacts rated for 24.5mm diameter. Never use a charger designed only for 20mm (2032 series) as insufficient spring tension causes unreliable contact.

The charging algorithm for a healthy LIR2450 follows three phases:

1. Pre-charge (Trickle): If cell voltage < 3.0V, apply 5mA until 3.0V is reached. This prevents lithium plating on over-discharged cells. 2. Constant Current (CC): Apply 30–50mA until terminal voltage reaches 4.20V. 3. Constant Voltage (CV) + Auto-Cutoff: Hold 4.20V, taper current. When current drops below 5mA (C/24), MCU triggers hardware cutoff. Total charge time: 2.5–3 hours from flat.

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4. LIR2450 Wholesale Pricing & MOQ Structure (2026 FOB)

| Order Tier | Unit Price (USD, FOB Shenzhen) | MOQ | Packaging | |---|---|---|---| | Sample Tier | $1.80 – $2.20/pc | 100 Pcs | Eco-Kraft Blister Card | | Wholesale Tier | $1.20 – $1.60/pc | 500 Pcs | Custom Papercard / Bulk Bag | | OEM Custom Tier | $0.95 – $1.30/pc | 2,000 Pcs | Full Custom Blister + Laser Cap Engraving | | Volume Tier | Negotiable | 10,000+ Pcs | Master Carton + Direct Container |

All prices include UN38.3 Transport Test Summary and MSDS/SDS documents required for air and sea freight declarations.

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5. Export Compliance & Certifications for LIR2450 Wholesale

Distributing lithium rechargeable coin cells across global markets requires adherence to multiple regulatory frameworks:

UN38.3: Mandatory altitude, thermal, vibration, shock, and external short-circuit testing protocol for air cargo.

IEC 62133: Standard for portable sealed secondary lithium cells — essential for CE marking.

RoHS 2.0 (EU 2015/863): Restriction of Hazardous Substances — critical for EU Amazon sellers.

EU GPSR 2024: New General Product Safety Regulation effective Dec 2024, mandating traceability and responsible person registration.

REACH SVHC: Declaration of substances of very high concern — required by major European importers.

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6. OEM Customization Options for LIR2450 Wholesale Buyers

VSZAPOWER offers the following private-label services starting at MOQ 500 pcs:

Laser Top Cap Engraving: Brand name, model number (e.g., "LIR2450 3.6V 120mAh"), and batch manufacturing date code.

Custom Blister Card Printing: Full-color CMYK front panel, back panel safety warnings, CE/RoHS compliance logos, and EAN-13/UPC-A barcode stickers for Amazon FBA compliance.

Custom Packaging Language Variants: English, German, French, Japanese, Korean inserts available for market-specific Amazon listings.

Factory Audit: Open-book factory visits and third-party SGS/BV inspection accepted.

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Source LIR2450 Batteries Directly from VSZAPOWER Factory

Ready to secure your LIR2450 wholesale supply? Explore our [LIR2032 Starter Kit](/products/lir2032-starter-kit) for sample evaluation or visit our [OEM Customization Hub](/#customization) to configure your custom coin cell battery order today. Our B2B team responds within 24 business hours with FOB pricing and UN38.3 documentation.