Standard sizes · 9 V
9Vequivalents
The 9V is also sold as 6LR61, PP3, 6F22, MN1604 and E-Block. They are the same cell under different brand and standard names, so any of them fits.
Same battery, other names
- 6LR61
- PP3
- 6F22
- MN1604
- E-Block
Size and specs
- Voltage
- 9 V
- Size
- 48.5 × 26.5 × 17.5 mm
- Chemistry
- Alkaline (6LR61). Also sold as lithium, NiMH rechargeable and zinc-carbon (6F22).
- Capacity
- about 500 to 600 mAh (alkaline)
- Type
- Standard sizes
What uses a 9V
Typical devices and how long a fresh set usually lasts. Yours may differ.
| Device | Takes | Lasts |
|---|---|---|
| Smoke alarm | 1 × 9V | about a year |
| Multimeter | 1 × 9V | about a year |
Good to know
- 6LR61 is the alkaline IEC name, 6F22 the zinc-carbon one, PP3 the old British name, MN1604 Duracell's and E-Block the German name.
- Zinc-carbon (6F22) is the cheap, weak one. Don't use it in a smoke alarm.
- Some smoke alarms ask for a lithium 9V. Use the type printed inside the alarm or in its manual.
- Store 9V batteries with the terminals covered. Two loose ones touching, or one touching a key, can short and get hot.
Questions
What is the equivalent of a 9V battery?
The 9V is also sold as 6LR61, PP3, 6F22, MN1604 and E-Block. They are the same cell under different brand and standard names, so any of them fits.
What size is a 9V battery?
48.5 × 26.5 × 17.5 mm, 9 V. Alkaline (6LR61). Also sold as lithium, NiMH rechargeable and zinc-carbon (6F22).
What uses a 9V battery?
Common devices include smoke alarm and multimeter.
How often should I change a smoke alarm's 9V battery?
Most makers say once a year, and test the alarm every month. Follow the instructions for your alarm. Battery Inventory can remind you of both, but it only sends reminders: it can't see or test your alarm.
Battery Inventory for iPhone and iPad
Never look up the 9V again.
Battery Inventory remembers which battery every device in your home takes, reminds you when one is due, and counts the spares in your drawer, so you buy the right cell before the old one dies. The finder in the app knows every code on this page. Search any of them, or point the camera at a coin cell to read it.
- Battery change reminders, free
- Monthly smoke and CO alarm test reminders
- A spares drawer and shopping list
- Cordless tool packs and chargers too
No account needed. Smoke and CO alarm features are reminders only: the app can't see or test your alarms.
