Observed arrival · 2026-09-23
Tachwise listens for a tired battery
Tachwise’s free app beta reads car data through an OBD-II dongle and explains battery health, fault codes, and live readings in plain language.
- For
- Everyday drivers using OBD-II dongles
- Worth noticing
- The beta needs a Bluetooth LE ELM327 dongle and Chrome on Android or desktop; iPhone support is tied to a native app.
Field notes
The browser beta connects to a Bluetooth Low Energy ELM327 dongle and can read faults and live data while the phone is connected; trips are kept on the phone. The separate Tachwise device is described as a bench prototype, with overnight battery monitoring shown as an intended capability rather than measured product data. The beta requires Chrome on Android or a desktop or laptop with Bluetooth; iPhone support is tied to a future native app.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue