
Storage Padlock — Battery-Free NFC Disc Lock for Storage Units
The Battery-Free NFC disc lock for storage units replaces the padlock on your external-hasp, drive-up, and container doors with a battery-free, phone-tap version
Tap an NFC phone to authenticate, then turn the knob to release the shrouded shackle — there is no battery inside the lock to drain or replace.
It brings the same keyless access and cloud management as our cylinder line to the doors a recessed cylinder cannot fit. If you have been looking for a smarter storage unit disc lock, this is the battery-free upgrade.
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Zero battery in the lock — powered by the phone's NFC field, nothing to charge or swap
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Shrouded hardened shackle — a discuss body leaves little for bolt cutters to grip
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IP65 sealed — rated for rain, dust, and freeze on outdoor and drive-up doors
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Phone is the key — no tubular key to snap, no key inventory to manage

Storage Disc Padlock Specifications
Mechanical | Smart |
|---|---|
Model: KR-NFC-PL96 | Authentication: NFC (ISO 14443-A) |
Body: zinc alloy | Encryption: AES-256 dynamic credentials |
Shackle: Stainless steel lock beam, Ø10 mm | Power source: passive (smartphone NFC field) |
Body size: Ø70 / H=96 mm,B= 55mm | Battery: none inside the lock |
Ingress protection: IP65 | Compatible devices: NFC-enabled iOS & Android |
Operating temp: −25°C to +65°C | Unlock response: typically 0.5–2 seconds |
Humidity: 10–90% RH | Access log: cloud-retained (retention configurable) |
Certifications: CE, FCC, RoHS | Also suits: drive-up, containers, outdoor cabinets |
Storage Padlock Dimension line drawing

How the Battery-Free NFC Disc Storage Padlock Works
There is no battery inside the storage padlock. The phone's NFC field supplies the power at the moment of the tap, the same principle a contactless transit card uses.
A unit can sit closed for a year and still open on the first tap.
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Tap — hold your NFC phone to the storage padlock; the NFC field powers it and checks your credential
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Turn — once authenticated, rotate the knob to draw back the hardened shackle
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Done — no key, no battery, no dead-lock lockout on a dormant unit


Built for Indoor and Outdoor Storage Unit
Drive-up and outdoor units punish a lock: rain, grit, temperature swings, and constant handling. This disc storage padlock is sealed to IP65 and rated from −20°C to +65°C, so winter freeze and summer heat do not stop the tap.
Because the shackle is hardened alloy steel inside a discus body, the usual padlock attack — a bolt cutter on an exposed shackle — has little to grab.
Our Disc Padlock vs Mechanical Disc Padlock vs Smart Padlock
Here is how the KENRONE NFC disc lock compares with the padlocks storage units use today.
Comparison | Mechanical disc padlock | Bluetooth smart padlock | KENRONE NFC disc lock |
|---|---|---|---|
Unlock method | Key | App + Bluetooth pairing | Phone NFC tap, then turn |
Battery in the lock | None | Internal battery | None |
Key-loss risk | High | None | None |
Access logging | None | App | Cloud log |
Weather sealing | Varies | Varies | IP65 |
Cut resistance | Shrouded shackle | Varies | Shrouded hardened shackle |
Multi-tenant management | Manual | App | Cloud access control |
Different door, same technology. If your units use recessed cylinders instead of hasps, the NFC self-storage cylinder lock delivers the same battery-free, phone-tap access.
Where This Fits in a Full Self-Storage Access Control Solution
A real facility is rarely one door type. The disc lock covers hasp, drive-up, and outdoor units while the cylinder covers indoor roll-ups — both managed from one platform. See how a full rollout works on our self-storage access control solution page.
Built for How Facilities and Tenants Actually Operate

Where This Fits in a Full Self-Storage Access Control Solution
A real facility is rarely one door type. The disc lock covers hasp, drive-up, and outdoor units while the cylinder covers indoor roll-ups — both managed from one platform. See how a full rollout works on our self-storage access control solution page.
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Built by a Lock Maker,
Not a Tech Startup
KENRONE has been a lock manufacturer since 2002 and has focused on battery-free NFC locks since 2020, shipping mechanical, electronic, and NFC hardware to projects in 100+ countries. We engineer the whole lock — from circuit board to cam mechanism — under one roof.
About Us

over two decades in locking
Vertical lock specialist
battery-free hardware and cloud management engineered to work together
Systems, Not Just Locks
from circuit design to final QC, no third-party assembly
Fully In-House Manufacturing
tested against extreme temperature, heavy use, and outdoor exposure
Built for the Field, Not the Lab


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