Batteries / SR
SR616
Silver oxide / zinc
Cross-checked Primary batteryReviewed:
Reference dimensions are not universal manufacturing tolerances. Check the actual cell and holder.
The type status describes documentary checks of core specifications, not every fact or suitability for a device.
Understanding SR616 before replacement
Identify the actual battery
SR616 is a documented Silver oxide / zinc primary cell with a nominal voltage of 1.55 V. Its reference diameter is 6.8 mm and its reference height is 1.65 mm. These are nominal reference dimensions, not a promise that every manufacturer has identical tolerances.
This dataset describes a non-rechargeable bare cell, without solder tabs or wires. A tabbed or wired assembly requires a separate fit check.
What markings identify this type?
The dataset associates SR616SW with SR616. The manufacturer may use a different label on the package. These references help identify the type; they do not certify the battery for a particular device.
A suffix such as W or SW describes a discharge/load variant. Preserve this requirement when choosing a replacement.
Similar dimensions in this catalogue
The following types share the same reference diameter as SR616. Their height, chemistry or voltage may differ. They are comparisons, not approved substitutes:
What to check before replacing SR616
Read the original device marking, verify nominal voltage and chemistry, compare diameter and height, and check the contacts and load requirements. Same diameter, identical voltage, or a familiar brand prefix alone is not enough to establish interchangeability.
The available data contains no affirmative device-specific fit test for SR616. A missing compatibility relation means “not assessed,” not “compatible.”
How reliable are these specifications?
Core type characteristics were compared with primary material from at least two independent publishers. This does not verify all model-specific values or physical suitability.
Technical specifications
| Designation | SR616 |
|---|---|
| Chemistry | Silver oxide / zinc |
| Nominal voltage | 1.55 V (Nominal) |
| Diameter | 6.8 mm |
| Height | 1.65 mm Cross-checked using documents from two independent publishers [Maxell] [Seiko Instruments] |
| Rechargeable | No Documented source [Maxell] |
| Terminal form | Bare cell without tabs or leads Documented source [Maxell] |
Reference dimensions are not universal manufacturing tolerances. Check the actual cell and holder.
Other designations
These codes identify the same type family. Match the load variant, terminals and device requirements separately.
SR616SWSW / low drain [Maxell]
W and SW are different load variants. The combined 357/303 product does not make every 357 and 303 product interchangeable.
Documented brands
Brand presence comes from product documents or documented code mappings; current availability is not checked.
Product-specific observations
Capacity belongs to an individual product and test regime. It is not a universal value for this battery type.
Maxell SR616SWDocumented source
Current availability not checked · SW / low drain [Maxell]
Replacement limits
Device compatibility has not been verified. Dimensions alone do not prove that a battery fits or works.
Replacement evidence by category
Other markings of this technical type
SR616SW SW / low drain
These markings resolve to this type in documented sources. The exact variant and device requirements still matter.
Conditional replacement: review requirements
No conditional cross-type relation is recorded.
Known obstacles to direct replacement
No explicit obstacle is recorded here; that is not evidence of compatibility.
Other type pairs without a recorded assessment
This pair has not been assessed. No compatibility conclusion is available.
No automatic replacement recommendation. Device compatibility has not been verified. Dimensions alone do not prove that a battery fits or works.
Sources & verification
- Maxell · maxell-sr-web Documented source
Maxell SR/LR technical specifications
Current availability not checked
· Reviewed: - Sony · v011-sony-sr Historical document
Sony Silver Oxide Button Battery Cross Reference
Current availability not checked
· Reviewed: - Seiko Instruments · v012-sii-sr Documented source
Seiko Instruments published technical type specifications
Current availability not checked
· Reviewed:
Common questions
What size is SR616?
Ø 6.8 × 1.65 mm
Can SR616 be recharged?
No. Do not charge primary cells.
Can SR616 replace another battery?
Not on the basis of size or matching names alone. Check the exact device requirements and the directed compatibility notes. This catalogue does not contain a guaranteed device-fit recommendation for SR616.
How does SR616 differ from SR614?
SR616 and SR614 have reference heights of 1.65 mm and 1.45 mm respectively, and nominal voltages of 1.55 V and 1.55 V. Their chemical systems are Silver oxide / zinc and Silver oxide / zinc. These comparisons do not establish a permitted replacement.
Open technical comparison: SR614
This is a technical comparison, not an equivalence or fit certificate.