iPhone and iPad Battery Planning
Know your battery burn before the next pack run.
BATT 4DAT helps iPhone and iPad users track batteries and battery-powered devices, forecast when each needs replacing, and reorder in one tap. It runs fully offline — no ads, no servers, and no data collected.
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
A focused, fully-offline battery utility.
BATT 4DAT tracks your devices and battery stock, computes what's overdue or due soon, and makes reordering one tap. It runs entirely on your device: no ads, no analytics, and no servers. Optional Sign in with Apple or Google only sets your identity locally. A free tier covers everyday use; an optional yearly Premium subscription unlocks unlimited tracking and battery-expiry reminders.
Private & offline
Device names, counts, battery types, notes, expiration dates, and optional photos are stored only on your device. Nothing is uploaded.
No ads, no tracking
No advertising SDKs, no analytics, and no backend. The App Store privacy label is "Data Not Collected."
Optional sign-in
Use Sign in with Apple or Google to set your identity on the device, or skip it entirely. In-app account deletion erases everything on demand.
Forecast & reorder
See the shortfall by battery family and reorder through Amazon affiliate links, disclosed in-app with "#ad."
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 bundled into the iOS app's Learn 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 ships inside the iPhone and iPad app as a search-first education resource on the Learn tab.
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
- Estimate household annual use
- Search wiki-style battery education on iPhone and iPad
- Track local device and battery-stock inventory
- Recommend battery type families
- Explain disposal and safety
- Add U.S. and world market context