The Nikon COOLSHOT 20i GII uses CR2 3V lithium. It uses a replaceable battery rather than an internal rechargeable cell.
Laser • Released 2019
What battery does the Nikon COOLSHOT 20i GII use?
Buy a fresh CR2 3V lithium battery. CR2 and CR123/CR123A are different physical sizes, so do not substitute one for the other.
COOLSHOT 20i GII battery at a glance
Replaceable battery
Replace the battery instead of charging it
No dependable model-specific figure
COOLSHOT 20i GII 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
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 20i GII will not power on
Start with a fresh CR2 3V lithium battery and confirm the polarity shown inside the COOLSHOT 20i GII 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
A weak cell, dirty contact or loose battery-cap connection can make a laser rangefinder switch off during a reading. Clean and reseat the battery before assuming the electronics have failed.
Battery drains faster than expected
If the COOLSHOT 20i GII is consuming CR2 3V lithium cells unusually quickly, try a fresh reputable battery and inspect the compartment for moisture, corrosion or a cap that is not closing tightly.
Battery care and storage
Nikon COOLSHOT 20i GII battery FAQ
What battery does the Nikon COOLSHOT 20i GII use?
The listed battery specification is CR2 3V lithium.
Is the Nikon COOLSHOT 20i GII 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 20i GII?
No. This model is listed for CR2. CR2 and CR123/CR123A are different physical sizes.
How long does the Nikon COOLSHOT 20i GII battery last?
A dependable model-specific battery-life figure is not published in the data used here.
Why is my Nikon COOLSHOT 20i GII not turning on?
Install a known-good battery of the exact required type and confirm the polarity.
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.