Documentation

Everything VBatPower does, documented field by field. VBatPower is a browser-native power-engineering workspace: a hierarchical battery-life model, a dimensional units engine behind 438 formulas, units-aware calculator flows, telemetry ingestion, and a REST API.

New here? Start with Getting Started, or see the product overview.

Start here

Getting Started

Build your first project end to end: batteries, components, states, and a battery-life estimate.

The Power Model

The Battery → Component → State model, every field, and the duty-cycle maths it feeds.

Guides

Calculator Flows New

Units-aware computation sheets: chain inputs, formulas, and expressions over one namespace.

Formula Library

438 formulas across 32 categories — solve for any variable, in any unit.

Unit Converter

Convert between every unit of a quantity at once, across every SI prefix.

Data & API

Telemetry & CSV

The six-column ingestion format that feeds measured current back into the model.

MCU Integration

Send telemetry from Arduino, ESP32, and STM32 with working firmware snippets.

API Reference

Auth, projects, telemetry, formula history, and API keys — with rate limits.

Free to use, free to keep

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