The Callaway 300 Pro uses CR2 3V lithium. It uses a replaceable battery rather than an internal rechargeable cell.
Laser • Released 2019
What battery does the Callaway 300 Pro use?
Buy a fresh CR2 3V lithium battery. CR2 and CR123/CR123A are different physical sizes, so do not substitute one for the other.
300 Pro battery at a glance
Replaceable battery
Replace the battery instead of charging it
No dependable model-specific figure
300 Pro 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
300 Pro will not power on
Start with a fresh CR2 3V lithium battery and confirm the polarity shown inside the 300 Pro 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 300 Pro is listed as Water / fog resistant. Even so, check the battery compartment and seal for moisture or debris before installing another battery.
Battery drains faster than expected
If the 300 Pro 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
Callaway 300 Pro battery FAQ
What battery does the Callaway 300 Pro use?
The listed battery specification is CR2 3V lithium.
Is the Callaway 300 Pro 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 Callaway 300 Pro?
No. This model is listed for CR2. CR2 and CR123/CR123A are different physical sizes.
How long does the Callaway 300 Pro battery last?
A dependable model-specific battery-life figure is not published in the data used here.
Why is my Callaway 300 Pro 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 Callaway website. Visit Callaway.