C battery size
26.2 × 50 mm
1.5 V · Alkaline · Cylindrical · also sold as LR14, R14, MN1400, Baby
About the C
The middle cylindrical size, found in larger torches and portable radios. It is nearly twice the diameter of an AA and holds roughly four times the energy — the spacers sold to run AAs in a C compartment work electrically and give you a quarter of the runtime.
The numbers
| Diameter | 26.2 mm · 1.03 in |
| Height | 50 mm · 1.97 in |
| Nominal voltage | 1.5 V |
| Chemistry | Alkaline |
| Other names | LR14, R14, MN1400, Baby |
Other cylindrical sizes
| Cell | Size | Voltage |
|---|---|---|
| AAA | 10.5 × 44.5 mm | 1.5 V |
| AA | 14.5 × 50.5 mm | 1.5 V |
| D | 34.2 × 61.5 mm | 1.5 V |
| AAAA | 8.3 × 42.5 mm | 1.5 V |
| N | 12 × 30.2 mm | 1.5 V |
| A23 | 10.3 × 28.5 mm | 12 V |
| CR123A | 17 × 34.5 mm | 3 V |
| 18650 | 18 × 65 mm | 3.7 V |
| 21700 | 21 × 70 mm | 3.7 V |
Frequently asked questions
What size is a C battery?
26.2 mm across and 50 mm long — 1.03 × 1.97 inches.
What voltage is a C?
1.5 V (Alkaline).
What is another name for a C?
LR14, R14, MN1400, Baby — all the same cell.
Is the C rechargeable?
Not in this chemistry. Alkaline cells of this size are single-use; recharging one is a fire risk rather than a saving.