Battery

9V

9V alkaline

6LR61 is a pack label for 9V — same battery, different name on the package.

Common uses: Meters · Pedals

9V Diagram

Brand-neutral outline — confirm the tray in your device.

Genuine aliases and pack labels for this battery — not substitutes of a different chemistry.

Same battery / other names

9VPP3

Also sold as

Brand or pack name for the same battery.

9V6LR61

Also sold as

Brand or pack name for the same battery.

9VMN1604

Also sold as

Brand or pack name for the same battery.

26.5 × 17.5 × 48.5 mm

Rectangular envelope: width × depth × height.

From manufacturer-backed notes on devices that use 9V — not generic advice.

Rechargeable 9V packs are not approved for this alarm family per First Alert support guidance.

Optional tools that fit this cell type — only where the chemistry allows. Separate from the battery answer.

Amazon links may earn us a commission. They do not change the battery answer.

Ansmann Energy Check LCD
Quick household cell check (good / low / replace)
Docs Buy on Amazon More tools
Panasonic eneloop BQ-CC55 charger
Everyday NiMH AA/AAA charging (eneloop ecosystem)
Docs Buy on Amazon More tools
PowerEx MH-C9000 WizardOne Charger-Analyzer
Charge, discharge and measure capacity of NiMH AA/AAA
Docs Buy on Amazon More tools

Battery tester
Quick good / low / dead check for household cells
Crude check only — does not measure capacity under realistic load.
How to test a battery Buy on Amazon

Buy links are optional and separate from the battery answer.

Search Amazon for packs of this battery code.

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.