26.2 x 50 mm
3 designations carry this exact envelope and they disagree on voltage: 1.2H3 runs 1.2 V where R14 runs 1.5 V, 20.0% apart. The compartment cannot tell them apart and the circuit can. Capacity is where they part: 1.2H3 holds 2200 mAh and LR14 holds 8000, 3.6 times as much. On a shop shelf this envelope is the C size, and that name is what the packet will say.
Every cell in this shell at one scale
| Cell | Envelope | Volts | Chemistry | Energizer |
|---|---|---|---|---|
| 1.2H3 | 26.2 x 50 mm | 1.2 V | nickel-metal hydride | Listed |
| LR14 | 26.2 x 50 mm | 1.5 V | alkaline | Listed |
| R14 | 26.2 x 50 mm | 1.5 V | carbon zinc | Listed |
Also stamped on cells in this table: 1.2H3, NH35-2200MAH, NH35-2500MAH, LR14, 14A, A93V, E93, E93 ALKALINE POWER, EN93, X93, A93, EP93, EPA93, R14, 14D, 1235, 14F, 935, 14CD, EV135, 14C, EV35.