Esperta Key Keyless Protection Schlüssel

Theft Protection
for Keyless Car Systems

Secure your car in 1 minute. With esperta secure battery, you can theft protect any car using a keyless car key. Simply replace your old battery with our sensor-equipped 2032/2450 batteries.

Our motion detection keeps your car safe!

Suitable for all common car brands and keys with button cells in the sizes of
CR2032 or CR 2450
Secure your keyless car


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    Vehicels and bikes are at high risk to be stolen
  • Checkmark esperta
    Cars and motorcycles with keyless systems can
    easily be hijacked
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    esperta solves a verified global problem
  • Checkmark esperta
    esperta secures any new and pre-owned car
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“The esperta secure batteries are our first such small and dense device. It was without doubt the main factor to our success."

Guido Weckwerth
CKO & Founder

esperta highlights

  • Simple to use and install
  • The world’s first theft protection smart battery
  • 100% tested before delivery
  • Sensor- and microprocessor equipped
  • CE-certified
  • Patented
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“The 2032 & 2450 secure technology is something I was looking for myself since years - now we build it ourselves”

Kai Karstensen, CEO & Founder
patented - esperta idea secure batterysimple as it is - esperta protectionmy esperta protected vehicle- smart battery

"The best innovation I've seen over the last years. Extremely simple to install. Works immediately without setups”

Lisbeth Silvester
CEO & Founder

Get Started

  • order your 2032 or 2450 esperta secure battery
  • replace the existing one in your keyless key
  • done - movement sensor is integrated
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