Nikon COOLSHOT 40 Battery Guide

The Nikon COOLSHOT 40 uses CR2 3V lithium. It uses a replaceable battery rather than an internal rechargeable cell.

Nikon Rangefinder Battery Guide

Laser • Released 2015

CR2 3V lithiumBattery
NoRechargeable
Not applicableCharging port
Not reliably publishedBattery life

What battery does the Nikon COOLSHOT 40 use?

CR2 3V lithium

Buy a fresh CR2 3V lithium battery. CR2 and CR123/CR123A are different physical sizes, so do not substitute one for the other.

COOLSHOT 40 battery at a glance

CR2 3V lithiumBattery type

Replaceable battery

NoRechargeable

Replace the battery instead of charging it

Not reliably publishedBattery life

No dependable model-specific figure

COOLSHOT 40 battery specifications

Battery type CR2 3V lithium
Battery system Replaceable battery
Rechargeable No
Charging port Not applicable
Published battery life Not reliably published

Battery system explained

CR2 is a compact 3V lithium battery commonly used in laser rangefinders. It is not the same physical size as CR123/CR123A.

No dependable model-specific battery-life figure is listed. Disposable-cell life varies mainly with how often the laser is fired, battery quality, storage and temperature.

How to replace the battery

Turn the rangefinder off before opening the battery compartment.
Remove the old battery and confirm the compartment calls for CR2 3V lithium.
Check the + and − polarity markings before inserting the new battery.
Install the fresh CR2 3V lithium battery in the indicated orientation.
Close the battery cover completely and test the rangefinder with a normal distance reading.
Compatibility warning: CR2 and CR123/CR123A are not interchangeable. Use the CR2 size specified for this model.

Battery life and what affects it

No dependable model-specific battery-life figure is listed. Disposable-cell life depends on battery quality, storage conditions, temperature and how often the laser is activated.

Battery troubleshooting

COOLSHOT 40 will not power on

Start with a fresh CR2 3V lithium battery and confirm the polarity shown inside the COOLSHOT 40 battery compartment. Because this model uses a replaceable cell, a known-good battery is the quickest way to rule out a power issue.

Fresh CR2 battery but still no power

Confirm the cell is CR2 rather than CR123/CR123A, then inspect the spring/contact surfaces for dirt, corrosion or a battery that is not seated fully under the cap.

Intermittent power after wet weather

The COOLSHOT 40 is listed as No. Even so, check the battery compartment and seal for moisture or debris before installing another battery.

Older model drains batteries quickly

The COOLSHOT 40 dates from 2015, so battery contacts, compartment seals and age-related electrical wear are worth checking if fresh batteries are draining unusually fast.

Battery care and storage

If the COOLSHOT 40 will sit unused for months, remove the CR2 3V lithium battery and store it separately in a dry place.
Carry one spare CR2 3V lithium battery if you rely on the COOLSHOT 40 during a full round or trip; it is quicker than trying to diagnose a dead unit on the course.
The COOLSHOT 40 is listed as No, but still keep the battery compartment seal and mating surfaces clean so the cover can close properly.
Because this COOLSHOT 40 is an older 2015-era design, inspect battery contacts occasionally for oxidation or loss of spring tension.

Nikon COOLSHOT 40 battery FAQ

What battery does the Nikon COOLSHOT 40 use?

The listed battery specification is CR2 3V lithium.

Is the Nikon COOLSHOT 40 rechargeable?

No. This model is listed as using a replaceable battery rather than an internal rechargeable battery.

Can I use a CR123 battery in the Nikon COOLSHOT 40?

No. This model is listed for CR2. CR2 and CR123/CR123A are different physical sizes.

How long does the Nikon COOLSHOT 40 battery last?

A dependable model-specific battery-life figure is not published in the data used here.

Why is my Nikon COOLSHOT 40 not turning on?

Install a known-good battery of the exact required type and confirm the polarity.

Verify the exact Nikon battery specification before purchasing

Battery type, charging port and power-system design can differ between similarly named rangefinders and regional versions. Before ordering a replacement battery or cable, confirm the exact model on the official Nikon website. Visit Nikon.