Are rangefinders legal in golf tournaments?

Yes, under USGA Rule 4.3. However, slope compensation must be disabled during competition. Most modern rangefinders include a slope-off switch or tournament mode. Check with your local committee as some club events may still ban all distance-measuring devices.

How often do rangefinder batteries need replacing?

Laser-only models use CR2 batteries that last 6-12 months with regular play. GPS hybrids have rechargeable lithium batteries lasting 10-15 hours per charge. Always carry a spare CR2 battery in your bag — they tend to die mid-round at the worst possible time.

Best Golf Rangefinders 2026