Mercury Battery Suggested Replacement Guide
| Mercuric Oxide | Possible Replacements ** | |||||
| Type | Voltage | Capacity (mAh) |
Type | Chemical System | Voltage | Capacity (mAh) |
| 164 | 1.4 | 24 | 364 | Silver Oxide | 1.55 | 19 |
| 313 | 1.35 | 245 | 303 | Silver Oxide | 1.55 | 175 |
| 323 | 1.35 | 100 | 309 | Silver Oxide | 1.55 | 70 |
| 325 | 1.35 | 55 | 384 | Silver Oxide | 1.55 | 43 |
| 343 | 1.35 | 120 | 344 | Silver Oxide | 1.55 | 105 |
| 354 | 1.35 | 160 | 301 | Silver Oxide | 1.55 | 110 |
| 387 | 1.35 | 80 | 387S* | Silver Oxide | 1.55 | 60 |
| 388 | 1.35 | 60 | - | - | - | - |
| E400N | 1.35 | 70 | 387S* | Silver Oxide | 1.55 | 60 |
| EPX625 | 1.35 | 260 | E625G | Manganese Dioxide | 1.50 | 190 |
| EPX675 | 1.35 | 240 | EPX76 | Silver Oxide | 1.55 | 190 |
| E13E | 1.4 | 100 | AC13 | Zinc Air | 1.4 | 255 |
| E312E | 1.4 | 63 | AC312 | Zinc Air | 1.4 | 130 |
| EP675E | 1.4 | 270 | AC675 | Zinc Air | 1.4 | 600 |
* 394 size with plastic grommet
** Devices (example; light meters) may need to be recalibrated to compensate for slight difference in operating voltages.
For additional information and helpful hints concerning the use of mercury battery replacements in cameras and light meters, please review articles published in the following issues of Popular Photography®.
Oct 1993, page 130
January 1994, page 144
September 1994, page 144
August 1995, page 66