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Battery Equivalent Chart

LR45 Battery Equivalent

LR45 is the same cell as 194, AG9 and LR936, so any of those codes will fit; SR45 is the same size in silver oxide and holds a steadier voltage for longer.

Chemistry
alkaline
Voltage
1.5 V
Size (Ø × H)
9.5 × 3.6 mm
Typical capacity
48 mAh

IEC designation LR936.

LR45 drawn to scale: 9.5 mm across and 3.6 mm thick, beside a US quarter at 24.26 mm across. US quarter Ø 9.5 mm 3.6 mm thick
LR45 at actual relative size: 9.5 mm across, 3.6 mm thick. The dashed circle is a US quarter, 24.26 mm across (US Mint coin specifications).

LR45 equivalents

Direct replacements

The same cell under another code. Any of these fits, whatever the brand.

  • 194
  • AG9
  • LR936

Upgrade or downgrade

Same size, different chemistry. Read the verdict before you buy.

Cell Chemistry Voltage Verdict
SR45 silver oxide 1.55 V Upgrade Upgrade: steadier voltage, longer life.

Similar size, check the fit

Same diameter, different thickness. These are not drop-in replacements.

Cell Size Verdict
LR916 9.5 × 1.6 mm Same 9.5 mm diameter, but 1.6 mm tall instead of 3.6 mm. Only if the holder fits; thinner cells can lose contact.
LR920 9.5 × 2.1 mm Same 9.5 mm diameter, but 2.1 mm tall instead of 3.6 mm. Only if the holder fits; thinner cells can lose contact.
LR927 9.5 × 2.6 mm Same 9.5 mm diameter, but 2.6 mm tall instead of 3.6 mm. Only if the holder fits; thinner cells can lose contact.

About the LR45 cell

Alkaline version of the same size; voltage sags as it drains.

LR45 questions

Is 194 the same as LR45?
Yes. 194 is another code for the same cell: alkaline, 1.5 V, 9.5 × 3.6 mm.
Is AG9 the same as LR45?
Yes. AG9 is another code for the same cell: alkaline, 1.5 V, 9.5 × 3.6 mm.
Can I use SR45 instead of LR45?
Upgrade: steadier voltage, longer life.
Will LR916 work in place of LR45?
Same 9.5 mm diameter, but 1.6 mm tall instead of 3.6 mm. Only if the holder fits; thinner cells can lose contact.
Will LR920 work in place of LR45?
Same 9.5 mm diameter, but 2.1 mm tall instead of 3.6 mm. Only if the holder fits; thinner cells can lose contact.
What voltage is LR45?
LR45 is a 1.5 V alkaline cell with a typical capacity of 48 mAh.
What size is LR45?
9.5 mm across and 3.6 mm thick.

Related

Other cells 9.5 mm across

Back to the full battery equivalent chart