• A complete Out-Of-The-Box monitoring solution
  • Meets even the highest security conditions
  • Works with all battery chemistries
  • Flexible, powerful and customizable
  • Smallest capacity tester on the market

A Complete Battery Monitoring for your smartphone

The SMARTLOGGER Companion App 1.0 provides a robust, fully air-gapped diagnostic interface for existing SMARTLOGGER devices (firmware up to 2.13).

Designed exclusively for Android, it transforms any NFC-enabled smartphone into a powerful offline battery monitoring tool. By communicating directly with the integrated "black box" memory of the SMARTBATTERY, technicians can retrieve tamper-proof historical data in seconds without requiring network access or compromising on-site IT security.

Transparency and Warranty Integrity

When battery failure occurs, determining the root cause is critical. The Classic App empowers both vendors and customers to analyze identical, unalterable performance data, fostering a transparent resolution process for warranty claims. Data collection is frictionless and can be executed quickly during standard maintenance routines, completely bypassing the need for expensive, permanently installed monitoring infrastructure.


Flexible and straightforward - a service engineer's best friend

Furthermore, the SMARTBATTERY technology can be used as both an integrated "black box" element of a battery for the purpose of warranty disputes, or as an external device that operates independent to any existing monitoring infrastructure, thus providing heightened transparency for your battery oversight
Things you can do with the SMARTBATTERY Companion App:

Quick State of Health Overview

A clear and light-weight overview illustrates whether a battery has exceeded pre-defined operation conditions and thus requiring more attention.
- green: the battery operates within normal conditions
- yellow: the battery has reached remarkable values
- red: the battery has definitely exceeded operating conditions

Long term testing and analysing, on-site

The integrated monitoring system provides all information necessary for a deep dive into the battery system itself, without infringing local network security: The Companion App uses NFC to directly request and download available log files from the batteries.
- Search for hidden damages
- Extrapolate interesting time windows

Furthermore, an integrated event handler shows points of interest within the timeline. You do not need to search for an event, just zoom directly to the time window you want to examine!

Instant Capacity testing and more

With the SMARTLOGGER technology, capacity tests no longer require tedious expenditure of time and energy. All you need is a SMARTLOGGER, a static load a static load with known power consumption and the Companion app.
After a small discharge test cycle, the Companion App will show if a battery is OK or needs additional attention.
Due to the fact that several SMARTLOGGER modules can be used simultaneously, comparable values are available.

Tiered Functionality: FREE and PRO Editions

The app is available in two distinct versions to match specific operational needs:

  • SMARTLOGGER FREE: Tailored for service engineers and third-party maintenance staff. It provides instant access to real-time voltage and temperature metrics, basic log retrieval, and on-demand tactical capacity testing.
  • SMARTLOGGER PRO: Engineered for manufacturers and authorized vendors. In addition to standard monitoring, it unlocks advanced lifecycle history (from production and transit to storage). Crucially, the PRO version allows vendors to hard-wire a timestamped "Sales Date" into the battery memory for strict warranty enforcement, and provides the ability to reset the module for redeployment.

The SMARTLOGGER Technology provides the smallest, most powerful Offline Battery Monitoring system on the market, that also meets the highest security conditions in the world!