11.1V 2400mAh INR18500 Battery Pack for Smart Door Locks
A 3S1P INR18500 Battery Pack for a 100,000-Unit Smart Lock Order
For a real smart door lock customer project, PKCELL received an order for 100,000 rechargeable lithium-ion battery packs. The specified pack uses a 3S1P INR18500 configuration with 11.1V nominal voltage and 2400mAh capacity.
Which Battery Pack Was Used in This Smart Door Lock Order?
PKCELL's confirmed customer order covers 100,000 units of an 11.1V 2400mAh INR18500 rechargeable lithium-ion battery pack for smart door lock applications. The pack is specified as 3S1P, using three 18500 cells in series, and is labelled 26.64Wh. The project documentation also describes a 12.6V charging voltage and a 9.0V discharge cut-off design value.
Rechargeable Power for Smart Door Lock Systems
Smart door locks combine long standby periods with brief periods of higher power demand during unlocking. Depending on the device architecture, a battery may serve the lock motor, keypad, wireless communication module, camera and control electronics. A suitable pack therefore needs an electrical configuration that matches the device, not just a large capacity rating.
The project brief identifies an 11.1V 18500 lithium-ion battery pack for this use. The accompanying actual pack photograph shows PKCELL branding, an INR18500 designation, an 11.1V / 2400mAh / 26.64Wh label and a cable ending in a white connector.
11.1V 2400mAh INR18500 3S1P Pack Details
| Parameter | Project Information |
|---|---|
| Battery designation | INR18500 rechargeable lithium-ion pack (as marked on the photographed sample) |
| Cell configuration | 3S1P — three 18500 cells connected in series |
| Nominal voltage | 11.1V |
| Nominal capacity | 2400mAh (2.4Ah) |
| Nominal energy | 26.64Wh (pack label) |
| Charging voltage | 12.6V (project brief) |
| Discharge cut-off | 9.0V (project brief) |
| External appearance | Blue sleeve with lead wires and white connector |
| Intended application | Smart door lock battery system |
| Order quantity | 100,000 packs — order confirmed |
The label and project document provide the values above. Final charge/discharge limits, connector pinout, maximum motor current, operating temperature and protection settings must follow the approved battery pack specification for each device design.
What Matters When Powering a Smart Door Lock?
Smart lock designs have a different electrical profile from devices with a constant load. The source project brief highlights several considerations for this kind of rechargeable pack:
Low-Power Monitoring
Electronic locks may spend much of the day in standby while the controller and wireless electronics remain available. Real battery life depends on standby current and communication activity.
Motor Activation
The lock actuator can create a short high-current demand. Pack voltage under load and the protection circuit's current limits need to suit the actual motor profile.
Compact Mechanical Fit
Battery compartment dimensions, cable routing, connector polarity and mounting method must be checked against the lock's internal layout.
Pack-Level Control
The project description lists protection considerations for overcharge, over-discharge, overcurrent, short circuit and temperature. The final approved protection specification determines actual limits.
For a broader overview of device requirements, see PKCELL's Smart Home Battery Solutions.
How the 3S1P INR18500 Pack Fits the Project
The documented solution uses three 18500 lithium-ion cells connected in series to form an 11.1V nominal pack. Its 2400mAh capacity and 26.64Wh labelled energy distinguish it from the 3.7V single-cell smart lock solutions that are also available on the market.
| Project Consideration | Solution / Evaluation Point |
|---|---|
| Voltage architecture | 3S1P lithium-ion pack rated at 11.1V nominal; verify the door lock controller's full acceptable voltage range. |
| Charging method | 12.6V charge voltage is listed in the project brief; charger compatibility must be confirmed with the approved pack design. |
| Motor load | Confirm unlocking peak current and voltage sag against the actual pack and protection specifications. |
| Mechanical interface | Project photo shows a white connector and leads; pin assignment, wire length and pack size require drawing-level confirmation. |
| Protection features | Overcharge, over-discharge, overcurrent, short circuit and temperature controls are identified in the design brief; verification is device-specific. |
PKCELL provides customized rechargeable battery pack services for customers evaluating pack geometry, voltage, connector and protection requirements. For a different battery form factor, see the existing 3.7V ICR18650 smart door lock battery page.
From a Defined Battery Specification to a Confirmed Order
- Application DefinedThe source project brief identifies a rechargeable 18500 battery pack intended for smart door lock equipment.
- Pack Configuration DocumentedThe 3S1P pack is specified at 11.1V and 2400mAh. The actual product photo shows an INR18500 pack labelled 26.64Wh.
- Customer Order ConfirmedA commercial order of 100,000 battery packs was confirmed for this smart door lock project.
A Confirmed 100,000-Pack Smart Lock Battery Order
Unlike a general battery selection guide, this case concerns an actual customer order for 11.1V 2400mAh INR18500 battery packs. The documented pack configuration and real product photograph provide concrete project details relevant to smart home equipment manufacturers assessing rechargeable battery options.
Need a Rechargeable Battery Pack for Your Smart Lock?
Share your voltage, capacity, motor current, installation dimensions and connector requirements. PKCELL can review the needs of your smart door lock project and discuss an appropriate custom pack solution.
