Batteries / PR

PR70

Zinc–air

Cross-checked Primary battery

Reviewed:

1.4 VNominal voltage
Ø 5.8 × 3.6 mmReference dimensions
Reference dimensions · PR70
PR70Ø 5.8 mm3.6 mm

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 PR70 before replacement

Identify the actual battery

PR70 is a documented Zinc–air primary cell with a nominal voltage of 1.4 V. Its reference diameter is 5.8 mm and its reference height is 3.6 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 10, PR230, P10, 7005ZD with PR70. 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.

Similar dimensions in this catalogue

The following types share the same reference diameter as PR70. Their height, chemistry or voltage may differ. They are comparisons, not approved substitutes:

  • SR527 — SR527: 2.7 mm high, 1.55 V; Silver oxide / zinc.
  • SR521 — SR521: 2.15 mm high, 1.55 V; Silver oxide / zinc.
  • SR516 — SR516: 1.65 mm high, 1.55 V; Silver oxide / zinc.

What to check before replacing PR70

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 PR70. 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

DesignationPR70
Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer]
ChemistryZinc–air
Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer]
Nominal voltage1.4 V
Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer]
Diameter5.8 mm
Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer]
Height3.6 mm
Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer]
RechargeableNo
Documented source [Panasonic Energy]
Terminal formBare cell without tabs or leads
Documented source [Panasonic Energy]

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.

Documented brands

Panasonic Energypower one

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.

Panasonic Energy PR230Documented source

Current availability not checked [Panasonic Energy]

Nominal voltage1.4 V
Documented source [Panasonic Energy]
power one p10Documented source

Current availability not checked [power one (VARTA Microbattery)]

Nominal voltage1.45 V

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

10 · PR230 · P10 · 7005ZD

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.

Documentary limits

PR70: Published nominal voltages differ among manufacturers; this is not proof of device incompatibility. Published technical records: Panasonic / Energizer 1.4 V; power one p10 1.45 V (size 10). Device-level compatibility must be verified separately.

Compare batteries

Sources & verification

Common questions

What size is PR70?

Ø 5.8 × 3.6 mm

Can PR70 be recharged?

No. Do not charge primary cells.

Can PR70 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 PR70.

How does PR70 differ from SR527?

PR70 and SR527 have reference heights of 3.6 mm and 2.7 mm respectively, and nominal voltages of 1.4 V and 1.55 V. Their chemical systems are Zinc–air and Silver oxide / zinc. These comparisons do not establish a permitted replacement.

Open technical comparison: SR527

This is a technical comparison, not an equivalence or fit certificate.