LR621 Battery Equivalent
LR621 is the same cell as 164, AG1 and LR60, so any of those codes will fit; SR621SW is the same size in silver oxide and holds a steadier voltage for longer.
- Chemistry
- alkaline
- Voltage
- 1.5 V
- Size (Ø × H)
- 6.8 × 2.1 mm
- Typical capacity
- 13 mAh
IEC designation LR621.
LR621 equivalents
Direct replacements
The same cell under another code. Any of these fits, whatever the brand.
- 164
- AG1
- LR60
Upgrade or downgrade
Same size, different chemistry. Read the verdict before you buy.
| Cell | Chemistry | Voltage | Verdict |
|---|---|---|---|
| SR621SW | 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 |
|---|---|---|
| LR626 | 6.8 × 2.6 mm | Same 6.8 mm diameter, but 2.6 mm tall instead of 2.1 mm. Only if the holder fits; thinner cells can lose contact. |
About the LR621 cell
Alkaline version of the same size; voltage sags as it drains.
LR621 questions
- Is 164 the same as LR621?
- Yes. 164 is another code for the same cell: alkaline, 1.5 V, 6.8 × 2.1 mm.
- Is AG1 the same as LR621?
- Yes. AG1 is another code for the same cell: alkaline, 1.5 V, 6.8 × 2.1 mm.
- Can I use SR621SW instead of LR621?
- Upgrade: steadier voltage, longer life.
- Will LR626 work in place of LR621?
- Same 6.8 mm diameter, but 2.6 mm tall instead of 2.1 mm. Only if the holder fits; thinner cells can lose contact.
- What voltage is LR621?
- LR621 is a 1.5 V alkaline cell with a typical capacity of 13 mAh.
- What size is LR621?
- 6.8 mm across and 2.1 mm thick.