Keyless Padlocks in Winter

Winter is hard on padlocks. We know. We live in Canada. Cold can make oil sticky. Freezing rain and a hard frost can seal moving parts. Here are some things you should be considering when deploying keyless padlocks in a winter climate.

Battery Types

Most battery types (and all rechargeable types we know of) have significantly shorter battery life as temperatures drop below freezing. A typical rechargeable battery will not only lose charge in the cold, but will not recharge well in the cold either. Batteries that can’t perform in the cold will leave you locked out in the cold.

When a battery has charge, it needs to be designed for the cold to deliver its rated current in the cold. This is why automotive batteries in cold climates advertise Cold Cranking Amps. Lower current leads to less powerful or slower internal motor operation. This may result in a lock that does not open or close as it was designed to do.

The solution is simple. Ensure a battery is designed to work in the cold for reliable winter performance operation.

Sera4’s AP3 padlock uses replaceable Lithium Thionyl Chloride batteries. These military-grade batteries are formulated to perform similarly in the coldest and hottest natural temperatures on Earth.  In the event that the battery is out of power after a time (this happens to every battery), the micro-USB port is convenient and accessible and facilitates access. An added bonus is that maintenance is a lot faster on a replaceable battery than with a rechargeable padlock. We can also deliver our products will full charge and ready-to-deploy, where rechargeable batteries need to ship at 30% charge.

Electronics

Electronics used outdoors in the winter must be designed and qualified for reliable use in cold temperatures. Consider that most consumer electronics in winter climates is still consistently used above the freezing point. Electronics require additional design and quality considerations to function reliably in deep cold. Designing electronics for the cold follows well-known quality standards (such as AEC-Q100), requiring specific attention during product development. We don’t expect consumer-grade electronics to consistently work outside in the dead of winter.

Ice Buildup

You should be concerned about ice buildup on padlocks in the winter. Humidity or water can get into parts of a lock and then freeze. Once there is solid ice around a mechanism that needs to move to open or close, the best thing to do is to melt the ice.  This is obviously inconvenient. We recommend focusing on simple installation tricks that will keep precipitation off the padlock in the first place.

AP3 is IP66-certified, so it will be fine to be left out for years in the rain. In winter climates, we recommend installing a simple vinyl flap over top of the padlock as shown below. This simple solution has proven in our tests to be more effective than more complicated approaches. 

In case you do find a padlock with significant ice deposits, try to resist the urge to hit at it with a hammer to chip away at accumulated ice. This usually only removes superficial ice and can result in surface/finish damage to the padlock body or shackle. Instead, try pressing the shackle deeper into the lock body. This will often dislodge stuck compoenents. Another smart option is to use a lock de-icer fluid. These bottles are small, inexpensive and effective.

Don’t let winter get between you and the benefits of going keyless. With the right products and a little bit of care during installation and operation, winter won’t be an issue. Feel free to talk to us if you have any questions about padlocks in winter weather.

We’re moving!

As of today, we’ve moved our headquarters to a new larger office. Not only does this accommodate our growth, but we now on the ground level with on-site warehouse and production areas.

Our new mailing address is

Sera4 Ltd.
100-630 Weber Street North
Waterloo, Ontario
Canada
N2V 2N2

We plan to hold an open house, but we will have to wait until it is safe, after the pandemic.

Sera4 (Virtually) Exhibiting at AfricaCom 2020

In recognition of the continuous growth in demand for reliable access control in Africa, Sera4 is committed to supporting and developing its customer base in Africa. Sera4 will be virtually exhibiting at the Africacom 2020 tradeshow on November 9-12. Register here for a free visitor pass. Come speak with us.

Sera4 Introduces Authorized Integrator Program

Sera4 is pleased to announce its Global Authorized Integrator Program. This program creates a reliable support structure for contractors and installers who install and service Teleporte. It provides a uniform quality of service to our end users.

Some benefits of the program include structured training for installers, access to a comprehensive knowledge base, preferential Sera4 support, and the opportunity to access the Warranty+ extended warranty program

Sera4 has already signed up our first Authorized Integrators. Contact us if you are interested to join the program or if you need to locate an Authorized Integrator.

Hidden Access Control: Security through Obscurity

Sometimes the best way to protect something is to hide it.

To some people, a keyhole or a padlock or a handle on something will act as a public notice that reads Valuables Inside. Those who are motivated to steal notice these signals. And when they’re identified by those people, they can tell the story about how to break them at a glance.

With keyless access, you can design a more secure system to protect your assets with a fully hidden mechanism. Imagine how the hood of your car opens, and you’ll have a good idea of what we mean. With a Sera4 Lock Controller, you can design a door, a panel or other secure hinged compartment that pops open by the touch of a smartphone. A door like this is more secure because it’s more hidden. It won’t have a handle, a keyhole, a padlock or other signals that it opens. And even when somebody might want to break in, it’s not clear where or how to start an attack.

Vertical Infrastructure: AX5 controlling access on a smart light pole.

5G demands denser networks in urban areas. This means that communications equipment is being installed in places like fake trees, park benches and lamp posts. These are places where people aren’t expecting to find anything valuable, and keeping access points obscure keeps them out of sight and out of mind. The only way to tell that there is an access point is to check with the Teleporte app on your phone.

Reliability

In the unfortunate event of a system failure, a door without a handle can be a difficult thing to open. The most common type of failure is a power failure: dead batteries. This is where our Access Pad can help. It provides a power connector (for a common 9V battery) to conveniently and discreetly power a dead system to get it open. In the rare case of a radio or app incompatibility, the Access Pad enables our Failsafe Unlock feature.

Sera4 Access Pad

With the latest technology, access points can be designed to be more secure and look better at the same time.

Please reach out to us. Each application is a little bit unique. We’d love to discuss how we can help conceal your access points.