+852-69415941
What Is an AG13 Battery? Size, Equivalents, and Applications Explained | BomKey Electronics
記事詳細
AG13 Battery Specifications
| Parameter | Value |
|---|---|
| Chemistry | Alkaline Manganese Dioxide (Zn/MnO2) |
| Nominal Voltage | 1.5 V |
| Typical Capacity | ~110–130 mAh (light load) |
| Diameter | ≈ 11.6 mm |
| Height | ≈ 5.4 mm |
| Operating Temperature | −10 °C ~ +60 °C |
| Shelf Life | ~3–5 years (cool, dry storage) |
| Common Designations | AG13, LR44, A76, L1154, 157, G13A |
| Polarity | Flat side = negative (−); raised button = positive (+) |
Size & Chemistry
AG13 is a medium-size coin cell at roughly 11.6 × 5.4 mm. It uses alkaline chemistry (zinc anode, manganese dioxide cathode), providing a stable 1.5 V profile for everyday electronics. For precision devices that benefit from a flatter discharge curve, consider the silver-oxide equivalents (SR44/357) with 1.55 V.
Equivalents & Alternatives
Direct Equivalents (same size, alkaline)
- LR44, A76, L1154, 157, G13/G13A, LR1154
Silver-Oxide Alternatives (premium performance)
- SR44, 357, SR44W (high-drain), SR44SW (low-drain)
Tip: Silver-oxide versions typically offer longer runtime and better voltage stability than alkaline, useful for watches, meters, and cameras.
AG13 vs LR44 vs SR44
| Feature | AG13 (Alkaline) | LR44 (Alkaline) | SR44 / 357 (Silver Oxide) |
|---|---|---|---|
| Nominal Voltage | 1.5 V | 1.5 V | 1.55 V |
| Chemistry | Alkaline | Alkaline | Silver oxide |
| Capacity | ~110–130 mAh | ~110–130 mAh | Higher & more stable |
| Discharge Curve | Declining | Declining | Flat (stable) |
| Best For | Toys, remotes, calculators | Same as AG13 | Watches, meters, cameras |
| Price | Very low | Low | Higher |
Typical Applications
- Watches & small clocks
- Calculators & digital calipers
- Laser pointers & LED key lights
- Thermometers & basic medical devices
- Toys, novelty gadgets, small remotes
How Long Does AG13 Last?
Runtime depends on load and temperature. In low-drain devices (watches, calculators), an AG13 can last up to 1–2 years. In higher-drain devices (pointers, toys), expect months of use. Silver-oxide SR44/357 usually lasts 30–50% longer under comparable conditions.
How to Replace an AG13 Battery
- Open the compartment with a small screwdriver or case knife (if it's a watch, follow the case-back style).
- Note polarity before removal (flat = −, raised = +).
- Remove the old cell using plastic/ESD-safe tweezers; avoid touching contacts.
- Clean contacts with a dry, lint-free swab.
- Insert the new AG13/LR44 (or SR44/357 upgrade) with correct polarity.
- Close and test; confirm the device powers on correctly.
Safety & Disposal
- Do not recharge alkaline button cells.
- Keep away from children; ingestion can be dangerous.
- Avoid mixing new and used cells in one device.
- Store cool and dry; remove from idle devices to prevent leaks.
- Recycle through authorized battery collection points.
Frequently Asked Questions
Is AG13 the same as LR44?
Yes. AG13, LR44, A76, and L1154 are equivalent alkaline button cells with the same size and nominal voltage.
Can I use SR44 instead of AG13?
Yes. SR44/357 is a silver-oxide alternative with 1.55 V and a flatter discharge curve, generally providing longer life.
What size is an AG13?
Approximately 11.6 mm diameter by 5.4 mm height.
How long does an AG13 last?
Up to 1–2 years in low-drain devices; months in higher-drain uses. Silver-oxide versions last longer.
Are AG13 batteries rechargeable?
No. They are primary alkaline cells and should never be recharged.
Where to Buy AG13 Batteries
Choose reputable sellers and check freshness (date codes). Consider silver-oxide SR44/357 if you need longer life for precision devices.
最新ニュース
- 台湾初のMEMS圧力センサーメーカー — Metrodyne Microsystems（メトロダイン・マイクロシステムズ）
-
2019.09.11
Bomkey Electronics社（ボムキー・エレクトロニクス）は、Metrodyne（メトロダイン）圧力センサーの全ラインナップの正規販売代理店です
- 村田製作所、自動車向け0805サイズで世界初の10µF/50Vdc MLCCを発表
-
2025.08.15
Bomkey Electronics — 村田製作所の車載用チップコンデンサ (GCM21BE71H106KE02L) の正規代理店
- 村田製作所、世界初の0402インチ47μF積層セラミックコンデンサーの量産を開始
-
2025.07.18
bomkey electronicsは、村田製作所の新製品0402インチ47μFの積層セラミックコンデンサーGRM158C80E476ME01DおよびGRM158R60E476ME01Dを販売しています
- データストレージと情報感知の核心コンポーネント。
-
2025.01.15
今日、デジタル情報が急速に発展する時代において、メモリとセンサはそれぞれ電子機器の「記憶センター」と「感知アンテナ」のような存在であり、データストレージと情報感知という重要な使命を担っています。この2つは互いに補完し
- 毎日低価格、心配なく選べる
- 正規品、細やかなサービス
- 複数倉庫から直接出荷、スピーディーな配送
- 品揃えが充実し、スムーズなショッピングが可能
