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Polar CS500 bike computer battery: CR2354

The Polar CS500 bike computer takes one CR2354 3V lithium coin cell.

CR23543V

CR2354× 13V lithium coin cell

Source: Polar CS500 manual

Varta CR2354 at Amazon for CR2354 3V lithium coin cell (affiliate link, opens in new tab)Panasonic CR2354 at Amazon (affiliate link)

Before you swap it

  • The code is printed on the flat face of the old cell. Match it exactly and the new one will fit.

Quick answers

Which battery goes in the Polar CS500?

One CR2354 3V lithium coin cell.