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An AG7 battery is a small round button cell used in many everyday gadgets. It’s tiny in size, but don’t let that fool you — it’s powerful enough to keep your watch ticking, your calculator working, or your laser pointer shining.
You might not always see “AG7” written on the battery. It can go by other names depending on the brand or country. That’s why it’s helpful to know its equivalent names, size, and uses.
| Feature | Details |
|---|---|
| Battery Name | AG7 |
| Also Called | LR926, G7, 395, 399, SR926, SR926SW, SR57 |
| Battery Type | Button Cell / Coin Cell |
| Shape | Round and flat |
| Size | Diameter: 9.5 mm Height: 2.6 mm |
| Voltage | 1.5V (alkaline) or 1.55V (silver oxide) |
| Chemistry | Alkaline (AG7, LR926), Silver Oxide (SR926, 395, 399) |
| Shelf Life | 2–3 years (alkaline), 3–5 years (silver oxide) |
| Weight | Around 0.7 grams |
| Packaging | Usually in blister packs (5 or 10 pieces per card) |
| Where It’s Used | Watches, calculators, toys, digital thermometers, laser pointers, etc. |
| Code | Type | Notes |
|---|---|---|
| LR926 | Alkaline | Most common equivalent for AG7 |
| SR926 / SR926SW | Silver Oxide | Better for watches and devices needing steady power |
| 395 / 399 | Silver Oxide | Often used in watches, gives longer battery life |
| G7 | Alkaline | Common label on multi-pack batteries |
| SR57 | Silver Oxide | Less common name, but same size |
| Feature | Alkaline (AG7 / LR926) | Silver Oxide (SR926 / 395 / 399) |
|---|---|---|
| Voltage | 1.5V | 1.55V |
| Battery Life | Shorter (used up faster) | Longer-lasting, more stable |
| Power Output | Power drops as it drains | Keeps voltage steady until near the end |
| Best For | Toys, lights, basic tools | Watches, medical devices, sensitive gadgets |
| Cost | Cheaper | A little more expensive |
✅ If you're using it in a watch or precision tool, go for SR926 or 395 (silver oxide).
✅ For toys or small flashlights, AG7 or LR926 (alkaline) will do just fine.
✅ Always check the size (9.5 x 2.6 mm) to make sure it fits your device.
✅ If you need longer performance, pick silver oxide — you’ll change batteries less often.
| Device Type | Why It Uses AG7 |
|---|---|
| Wristwatches | Tiny size, fits easily, gives just the right power |
| Calculators | Keeps them running without taking up much space |
| Laser Pointers | Compact power source for the beam |
| Toys | Often used in sound/light features of small toys |
| Digital Thermometers | Light, flat, fits inside slim thermometer bodies |
| LED Keychains | Powers light functions in small gadgets |
AG7 is a small, round battery that goes by different names, but always delivers dependable power for little gadgets. If you can't find AG7, just search for LR926 (alkaline) or SR926 / 395 / 399 (silver oxide) – they fit and work the same.
Pro Tip: Want fewer battery changes? Go with the silver oxide version. It lasts longer, especially in watches!
