Polar Heart Rate Monitor Replacement Battery

Panasonic 2354 Fresh Battery with Shelf Life Of 10+ Years

Perfectly Fits the S510, S520, S625X, S725, S720i, 720i, S720i, 720i, 610, 510 Polar Heart Monitors.

Also Known AS:

 DL2354, BR2354, KL2354, L2354, ECR2354, KCR2354, E-CR2354, KECR2354.

How To Change The Battery

A)Open the battery cover with a coin by turning it from CLOSE to OPEN

B)Remove the battery cover and lift the battery out carefully with a suitable sized small rigid stick or bar. Insert a new battery inside the cover with the positive (+) side facing the cover.

C)Replace the old sealing ring with a new one, fitting it snuggly in the cover groove to ensure water resistance.

D)Put the cover back on and turn it clockwise to CLOSE.

E)Re-enter the basic settings to the heart rate monitor.

Warning:

When handling a new, fully charged battery, avoid clasp-like contact, i.e. simultaneously from both sides, with metal or electrically conducting tools, like tweezers. This may short circuit the battery, causing it to discharge more rapidly. Typically, short circuiting does not damage the battery, but it may decrease the capacity and the lifetime of the battery.