Choosing a reliable battery is essential for golfers who rely on rangefinders for quick, accurate distances on the course. From disposable CR2 lithium cells with long shelf life to rechargeable Li-ion packs, the right power source ensures your device stays ready during rounds and practice sessions. This guide highlights five products that illustrate practical battery choices and rangefinder options, including slope modes, magnetic mounts, and fast-charging features. The summary table below helps you compare compatibility and power options at a glance.
| Product | Brand | Notes |
|---|---|---|
| REVASRI Rangefinder | REVASRI | Rechargeable Li-ion; slope, pin lock |
| REDTIGER Rangefinder | REDTIGER | 1200 yd max; Type-C charging; magnetic mount |
| Acer Golf Rangefinder | Acer | Rechargeable; 1200 yd; anti-shaky |
| Callaway 300 Pro Slope | Callaway | Slope mode; 5-1000 yd; 6x mag |
| PKCELL CR2 Battery 4 Pack | PKCELL | CR2 3V; 850 mAh; 10-year shelf life |
REVASRI Rangefinder With Slope And Pin Lock

REVASRI’s rangefinder covers up to 1000 yards with ±1 yard accuracy and delivers measurements in about 0.5 seconds. It includes an external slope switch, flagpole lock, and a vibration cue when a target is locked. In slope-on mode, it displays angle, line distance, and golf-slope distance; slope-off mode keeps readings to straight-line distance for tournaments. A built-in Li-ion battery powers the unit and a low-battery indicator helps plan replacements. The compact design makes it suitable for on-course use and practice drills.
- 1000-yard range, ±1 yard accuracy
- 0.5-second measurement
- External slope switch, flag-lock vibration
- Built-in Li-ion battery with low-battery indicator
REDTIGER Rangefinder With Slope And Magnet

REDTIGER’s rangefinder reaches up to 1200 yards with a 0.5-yard accuracy and 7x magnification for clear readings. The slope switch keeps play legal for tournaments when needed, while a magnetic stripe enables quick attachment to carts or clubs. Type-C charging supports easy recharging, making it ideal for longer rounds. Six measurement modes—slope compensation, flag-lock, horizontal/vertical distance, speed, and continuous scan—offer versatile options for reading distances in varying conditions.
- Up to 1200 yards; 0.5-yard accuracy
- 7x magnification
- Slope switch and flag-lock vibration
- Type-C rechargeable; magnetic mount
- Six modes: slope, flag lock, distance, speed, continuous scan
Callaway 300 Pro Slope Laser Rangefinder

Callaway’s 300 Pro Slope Laser Rangefinder provides precise slope-adjusted distance by accounting for elevation changes, then delivering the slope-corrected measurement. The device offers up to 6x magnification, a 5-1000 yard range, and dual-yardage display in yards or meters for convenience on U.S. courses. Note: Customers may receive either the original or the 2021 model. Both offer robust performance and reliable readings in varying light, with a robust design focused on quick targeting and consistency.
- Slope-adjusted distance calculation
- 6x magnification; 5-1000 yards
- Yards or meters display
- Model variations may occur (original or 2021)
PKCELL CR2 Battery 4 Pack

PKCELL CR2 Battery 4 Pack provides CR2 3V lithium cells designed for golf rangefinders and other high-drain devices. Each cell offers about 850 mAh capacity and a long 10-year shelf life when stored properly. These non-rechargeable batteries deliver consistent performance without the risk of recharging issues. They are designed for a wide temperature range, with stable performance in cold or hot conditions. A four-pack ensures spare power for multi-round seasons, enabling uninterrupted distance readings when needed.
- CR2 3V; 850 mAh
- Non-rechargeable; 10-year shelf life
- Wide operating temperature range
- Four-pack ensures spares for multiple rounds
Buying Guide
Battery Types And Device Compatibility
Two main battery approaches power golf rangefinders: rechargeable lithium-ion packs built into the unit, and disposable CR2 lithium cells. Rechargeables are convenient for frequent players who can plug in between holes or during practice; disposable CR2 cells offer long shelf life and minimal maintenance, but require periodic replacement. Before buying, confirm which battery type your rangefinder uses and whether the device supports external charging or a spare battery strategy.
Power Management On The Course
Power efficiency matters for accuracy and performance on the course. Look for features such as sleep or auto-off modes, battery indicators, and fast charging. If you often play back-to-back rounds, a rechargeable model with USB-C or Type-C charging can save time. For tournaments, verify which slope settings are allowed with your battery option, since slope-off devices display only line-of-sight distance.
Durability And Environmental Tolerance
Durability and environmental tolerance matter for outdoor use. Choose batteries stored in cool, dry places and avoid direct sunlight. If you expect cold or high-heat rounds, confirm the battery’s operating temperature range. For multi-season play, consider brands with proven shelf life and reliable supply, plus a warranty or return policy.
Quick Comparisons
- Rechargeable rangefinders suit frequent players; disposable CR2s suit occasional use with long shelf life.
- Slope on vs slope off affects tournament eligibility; verify requirements before play.
- Magnetic mounts and Type-C charging add convenience in busy rounds.