CalculatorCast
数学 金融 健康・フィットネス 日付と時間 単位変換 コンピューター 物理学 化学 建設 工学 統計学 教育 日常生活 生物学 自動車 料理・食品 スポーツ・フィットネス 不動産 写真 電気 農業 旅行 ビジネス
すべての計算機 お気に入り ()
English Español Français Deutsch Português Italiano Nederlands Polski Türkçe 日本語 한국어 Svenska Norsk Dansk Suomi עברית

バッテリー寿命計算機

CIPAバッテリー評価から任意のバッテリー容量に換算した撮影可能枚数を見積もります。

はじめに

Battery Life Calculator — Estimate shot count from a CIPA battery rating, scaled to any battery size. Enter CIPA Rated Shots, Original Battery Capacity, New Battery Capacity (blank = same) to get an instant, accurate result.

計算式

Average consumption per shot = original battery capacity (mAh) / CIPA-rated shot count. Estimated shots on a different battery = CIPA-rated shots × (new battery capacity / original battery capacity). There is no universal physics formula for battery life — this scales the camera manufacturer's published CIPA standard test rating linearly by battery capacity.

ステップごとの説明

  1. Enter the CIPA Rated Shots.
  2. Enter the Original Battery Capacity.
  3. Enter the New Battery Capacity (blank = same).
  4. Click Calculate to see your result instantly.

実例

Example: With CIPA Rated Shots = 300, Original Battery Capacity = 1200 mAh, the Battery Life Calculator gives Avg Mah Per Shot: 4, Estimated Shots: 300.

よくある質問

What is a CIPA rating?
A standardized shot-count test defined by the Camera & Imaging Products Association, used by manufacturers so battery life can be compared consistently across cameras under a defined shooting pattern (including flash use, zoom, and review time).
Why might my real-world shot count differ from the estimate?
CIPA testing follows a fixed, moderate usage pattern — heavy use of live view, video, Wi-Fi, or cold weather will reduce real-world shots per charge below the rated and scaled estimate.
What inputs does the Battery Life Calculator need?
You'll need to provide: CIPA Rated Shots, Original Battery Capacity, New Battery Capacity (blank = same). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Battery Life Calculator?
The Battery Life Calculator applies the formula exactly as calculated — Average consumption per shot = original battery capacity (mAh) / CIPA-rated shot count. Estimated shots on a different battery = CIPA-rated shots × (new battery capacity / original battery capacity). There is no universal physics formula for battery life — this scales the camera manufacturer's published CIPA standard test rating linearly by battery capacity. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Battery Life Calculator free to use?
Yes, the Battery Life Calculator is completely free, requires no signup, and runs instantly in your browser.

バッテリー寿命計算機について

The Battery Life Calculator uses a real, verifiable formula — Average consumption per shot = original battery capacity (mAh) / CIPA-rated shot count. Estimated shots on a different battery = CIPA-rated shots × (new battery capacity / original battery capacity). There is no universal physics formula for battery life — this scales the camera manufacturer's published CIPA standard test rating linearly by battery capacity. — so results are accurate every time, not an approximation.