iPhone and iPad Battery Planning
Know your battery burn before the next pack run.
BATT 4DAT helps iPhone and iPad users forecast battery needs across the home, property, garage, tools, and vehicles. The website mirrors the app's forecast, circuit lab, battery wiki, inventory, and privacy posture so App Store visitors can inspect the experience before installing.
12-month estimate
Family home
Toys, controllers, detectors, one car, and one garage tool platform drive the average family-home battery curve.
Household cells
AA, AAA, 9V, C, D, coin, and watch cells.
Forecast disposable battery burn by device cluster instead of guessing at the checkout aisle, then drill into specific coin, watch, and specialty replacements instead of treating them as “other.”
Power tools
Rechargeable packs need cycle planning.
Power tool batteries should be forecast by charging load, replacement age, and storage habits, not only by units consumed.
Vehicles
Cars, ATVs, and motorcycles are replacement events.
Starter batteries behave differently from household cells, so they get tracked as service-life items with fitment and recycling context.
Home users
For anyone tired of guessing at the battery aisle.
Forecast remotes, toys, detectors, watches, and backup gear from one planning surface.
Property operators
Built for motel owners and room-by-room replacement work.
Track batteries across remotes, locks, thermostats, detectors, and other repeat-replacement devices.
Maintenance teams
Useful for repair techs and maintenance crews.
Keep the right cells, specialty sizes, tool packs, and starter batteries ready before service calls.
iOS App Sync
The web story now matches the bundled app.
The iOS app includes local battery forecasts, device and spare-battery inventory, optional camera and photo imports, a search-first battery wiki, affiliate battery links, AdMob-supported free use, and a yearly Remove Ads subscription through Apple's in-app purchase system.
Private inventory
Device names, counts, battery types, notes, saved messages, and optional photos are stored on the device for app functionality.
Account choice
Users can continue locally or use Sign in with Apple. When used, the app stores the Apple user identifier, display name, email if provided, and link date.
Age appropriate
BATT 4DAT is an educational utility for general audiences, is not submitted for the App Store Kids category, and does not knowingly collect children's personal information.
Public policy URL
The separate privacy page describes developer, Apple, Google AdMob, and affiliate data paths for App Store Connect review and user transparency.
Circuit Lab Game
Learn series and parallel by saving a critical system.
This walkthrough game teaches how series wiring raises voltage, parallel wiring raises amp-hour capacity, and both affect how long a critical system can run before a generator has to recharge the bank.
Critical System Rescue
Motel Safety Board
Keep emergency lighting, office communications, and the alarm panel running while the backup generator is staged.
Score: 100
Voltage target met. Now make sure runtime is long enough.
Runtime target met. This bank can carry the mission with the current assumptions.
Wiki Engine
Source-backed education, not battery folklore.
The web workspace includes a local scraper and SQLite writer that turns curated battery facts, official safety guidance, and market pulls into a reusable knowledge base for the website and the iOS Search tab.
Battery facts
EPA, FAA, Energizer technical references, and Battery Council International source pages anchor the education layer.
U.S. market
Census trade endpoints can be harvested into local tables for battery category snapshots and state-facing import views.
World market
WITS trade pages provide world ranking views for battery product codes tied to household cells, lithium packs, and starter batteries.
Wiki search
The same battery wiki is meant to surface on the web and inside the iPhone and iPad app as a search-first education resource.
Coverage
Mapped battery families
- Top 40 consumer battery types by use
- Coin, watch, hearing-aid, and specialty cells
- Rechargeable power tool platforms
- Car, ATV, and motorcycle batteries
Outputs
What the scraper builds
- Battery catalog records
- Forecast profile assumptions
- Source metadata with URLs
- Market rows in `batt4dat.sqlite`
Usage
What the iOS app can do next
- Estimate household annual use
- Search wiki-style battery education on iPhone and iPad
- Track local device and spare-battery inventory
- Recommend battery type families
- Explain disposal and safety
- Add U.S. and world market context
Data Commands
Use the verified offline build first.
cd WEB
npm run build-db -- --offlineVerified here. Offline mode writes the catalog, forecast assumptions, ranking tables, source registry, and an empty market shell into local JSON and SQLite outputs.
npm run build-dbNetwork-dependent and not verified here. Online mode attempts to refresh configured U.S. and world market source rows in addition to the seeded catalog.