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Dashboard showing the next job, how many batteries are ready to use, packs charging and a fleet-readiness bar.
Battery Inventory app icon

Tools & Productivity

Battery Inventory

Tool & Battery Tracker

Nine packs, three chargers, and no idea which ones are ready. Track every battery, charger and tool in one place — tag packs with NFC stickers, see what's charged at a glance, and know you have enough power before you start the job.

  • On-device, no account
  • NFC sticker scanning
  • Job readiness checks
  • Works offline
Get Battery Inventory iPhone & iPad · iOS 26

Always know where every battery is.

How it works

  1. Add your packs

    Create a battery for each pack — brand, voltage, capacity and a charge level. Tag it with an NFC sticker for instant lookup.

  2. Set up tools

    Add your tools and how many packs each one needs, so the app knows what a full job requires.

  3. Track at a glance

    Mark packs available, charging, in a tool, borrowed or missing. The dashboard always shows what's ready.

  4. Plan the job

    Pick a job and the app checks your inventory — green when you have enough charged packs, a warning when you're short.

A look inside

The battery library listing each pack with its status, charge level and charger, grouped by brand and searchable.
Every pack, tracked
Jobs list showing planned tasks with their dates, required tools and a ready or short status.
Plan a job
Chargers list showing each charger with its slots and how many are currently in use.
Charger slots

What's inside

  • Live status for every pack

    Available, charging, in a tool, borrowed, missing or retired — update a pack's state in a tap and the whole inventory keeps up.

  • NFC sticker scanning

    Stick a tag on each battery and tap to jump straight to its details. The fastest way to update where a pack is.

  • Job readiness

    Choose a planned job and the app checks your charged inventory, telling you whether you're ready or exactly how many packs you're short.

  • Tools & chargers

    Define how many packs each tool needs and how many slots each charger has, so the dashboard reflects your real workshop.

  • Fleet overview

    A single readiness bar and counts — available, charging, in tools, borrowed — answer "what's ready right now?" at a glance.

  • On-device & private

    Everything lives on your iPhone with SwiftData. No account, no sign-in, no cloud — and it works completely offline.

About Battery Inventory

Battery Inventory is an iOS-first app for anyone who owns more cordless batteries than they can keep track of — homeowners with a few garden tools, DIYers, and workshop owners juggling dozens of interchangeable packs across chargers, shelves, vehicles and worksites.

It’s built to feel like inventory and asset tracking, not a complicated maintenance system. Add your packs, tools and chargers once, then update where each battery is in a couple of taps — or just tap an NFC sticker. The dashboard always shows how many packs are charged and ready, and a job-planning check tells you whether you have enough for the next task before you head out.

Everything is stored locally on your device with SwiftData — no account, no login, no cloud dependency — so it’s fast, private and fully usable offline. Available in 22 languages.