Electric APU

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Electric APU is the companion app for the Electric APU controller installed in your truck

By Electric APU, Inc. · Utilities

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Why we expect it: Clear, well-documented companion app with strong offline privacy and secure pairing for truck owners.

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In short

Electric APU Electric APU pairs over Bluetooth with the controller in a truck and shows live battery, solar, and relay status, plus controls for the battery maintainer and a controlled APU battery shutdown. It is aimed at truck owners and drivers who run an Electric APU system, and it needs no account or cloud connection. One standout point is that pairing uses a one-time 6-digit code shown on the controller's display.

Summary by Debuts, based on the App Store listing.

About

Electric APU is the companion app for the Electric APU controller installed in your truck. It connects to the controller over Bluetooth and shows what the system is doing right now — no account, no cloud, nothing leaves the cab.

BATTERY • Pack voltage, current, state of charge and temperature • Per-cell voltages for 8S (24 V) and 4S (12 V) packs • Charger status and "battery off" detection, with a one-tap WAKE

SOLAR • Per-port MPPT charger data: panel voltage, charge current, charge state, daily yield • Status at a glance for every connected controller

CONTROLS • Battery maintainer on/off with live state (waiting, charging, batteries full) • Auxiliary relay control with hardware read-back • Controlled shutdown of the APU battery

BUILT FOR THE CAB • High-contrast dark theme, large touch targets • Secure pairing: the controller shows a one-time 6-digit code on its display • Works offline — the phone talks only to the controller in your truck

Requires an Electric APU controller (firmware 7.4.0 or later) and an iPhone with iOS 15 or later. Without the controller the app can only search for one.

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