FR03 battery
What replaces a FR03
FR10G445, L92, 24-LF, Energizer Ultimate Lithium AAA
1.5 V lithium (primary), 10.5 × 44.5 mm (diameter × height)
The FR03 is a single-use 1.5 V lithium (primary) cylindrical. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.
Specification
- IEC designation
- FR03
- ANSI / NEDA
- 24-LF
- Nominal voltage
- 1.5 V
- Chemistry
- Lithium (primary)
- Size
- 10.5 × 44.5 mm (diameter × height)
- Typical capacity
- 1250 mAh
- Rechargeable
- No — never charge it
Codes that mean the same battery
| Code | Fits? |
|---|---|
| FR10G445 | Yes — same cell |
| L92 | Yes — same cell |
| 24-LF | Yes — same cell |
| Energizer Ultimate Lithium AAA | Yes — same cell |
Codes that look close but are not
| Code | Why it is not a substitute |
|---|---|
| 10440 | The AAA-shaped rechargeable lithium-ion cell at 3.7 V. Not a substitute. |
The FR03 is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.
Where it turns up
- Trail cameras and outdoor sensors
- Headlamps used in cold weather
- Medical devices needing long shelf life
- GPS trackers
Common questions
- What is equivalent to a FR03?
- FR10G445, L92, 24-LF, Energizer Ultimate Lithium AAA — all the same 1.5 V cell under different manufacturer codes.
- Can I use a 10440 instead of a FR03?
- The AAA-shaped rechargeable lithium-ion cell at 3.7 V. Not a substitute.
- Is the FR03 rechargeable?
- No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.
Related pages
- LR6 battery 1.5 V alkaline
- LR03 battery 1.5 V alkaline
- ICR18650 battery 3.6 V lithium-ion (rechargeable)
- LR20 battery 1.5 V alkaline
- HR6 battery 1.2 V nickel-metal hydride
- LR14 battery 1.5 V alkaline
- CR17345 battery 3 V lithium (primary)
- HR03 battery 1.2 V nickel-metal hydride
- 8LR932 battery 12 V alkaline
- FR6 battery 1.5 V lithium (primary)
- INR21700 battery 3.6 V lithium-ion (rechargeable)
- 4LR44 battery 6 V alkaline
Sources
- Official vendor product documentation — At One Place