Callaway Rangefinder Battery: Which Type Each Model Takes and How to Replace It

The Callaway rangefinder battery depends on the model. The 300 Pro (including the Limited Edition versions), 350TL, 250 and 200s each take one replaceable CR2 3-volt lithium cell under a twist-open hatch. The newer 300 Pro+, Pro XS+, Micro Pro and Screen View have a built-in rechargeable battery instead, and the 300 Pro+, Pro XS+ and Micro Pro charge over USB-C.

Quick check: a hatch with a lift tab means a CR2; a USB-C port means you charge it. Below is the battery for every Callaway laser we could confirm in Callaway’s own manuals and product pages, with the official replacement steps, what the battery icon means, how long a cell or a charge lasts, and what to do when a fresh battery does not fix it.

Callaway rangefinder battery type by model

Only what Callaway states in a manual or on its own product page (callawaytag.com) is in the table. Where Callaway does not name the cell, the table says so rather than guessing.

Pro XS, LS, XLS and CSi Pro owners: Callaway’s downloadable guides for these models show a battery door but do not print the cell type. Every other Callaway laser with a door takes a CR2, so open the door and match the cell you find before you order. Other brands are in the rangefinder battery finder, and Blue Tees owners have their own page on the Blue Tees rangefinder battery.

Callaway 300 Pro battery: CR2 or rechargeable?

This is where most of the confusion comes from. The standard 300 Pro and its Limited Edition colorways run on one CR2; Callaway’s manual page for them is shared ("300 Pro Laser Rangefinder & Limited Edition") and the manual lists a "CR2 3-Volt Lithium Battery". The 300 Pro+ is a different unit: Callaway’s product page describes a "USB-C rechargeable battery delivering 30+ rounds per charge" and says USB-C charging "eliminates the need for disposable batteries".

• A hatch with a lift tab and no USB-C port: 300 Pro (or Limited Edition). It takes one CR2.
• A USB-C port: 300 Pro+. Charge it; do not order batteries.
• Still unsure: check the model name on the box or your order confirmation. Everything else about the 300 Pro, from slope to specs, is on our Callaway 300 Pro page.

How to replace the battery in a Callaway rangefinder (CR2 models)

The 300 Pro, 350TL, 250 and 200s manuals give the same four steps. You need one CR2 3-volt lithium cell and a flat surface to work over.

1. Lift the hatch tab. It folds up from the battery cap on the body.
2. Turn the cap counterclockwise to open, then take out the old cell.
3. Remove the protective plastic battery cover. On a new unit this is the step people miss, and a cell still behind its cover makes the rangefinder look dead.
4. Fit the new CR2, replace the battery cap and tighten it clockwise. Snug is enough; do not force it.
5. Press Power and range a target to check you get a number and that the battery icon is full.

Work over a table or the cart seat: the cap is the part that gets dropped in long grass. A case that holds the hatch shut in the bag is covered on the Callaway 300 Pro case page.

Which CR2 battery to buy for a Callaway rangefinder

Callaway does not name a preferred brand; any name-brand 3-volt lithium CR2 fits. Duracell, Energizer and Panasonic are compared on capacity, cold rating and price per cell in our best CR2 battery for a rangefinder guide. Two things not to buy:

• A CR123A. Same 3 volts but longer and wider, so it will not fit a CR2 hatch. The sizes are side by side in CR2 vs CR123A.
• A rechargeable RCR2. These typically run at a higher voltage than a 3-volt CR2, and Callaway’s manuals specify a lithium CR2 only.

How long does a Callaway rangefinder battery last?

For the CR2 models Callaway gives no rounds figure, only the warning point: once the battery icon is empty there are "approximately 200 ranges left until the battery is completely drained". For most players that is two or three rounds, so order a spare when you first see it. The laser only draws real power when you press, and the auto-off (10 seconds on the 300 Pro and 250, 5 seconds on the 350TL and 200s) keeps idle drain low, so a CR2 typically lasts months of weekend golf.

For the rechargeables Callaway does publish figures: 30+ rounds per charge on the 300 Pro+, 100+ rounds on the Micro Pro, and 6–8 hours of use on the Screen View. The Micro Pro manual recommends a 5V/1A USB charger and says a full charge takes about 6 hours, with the indicator light turning green when it is done.

One battery drain to know about on the 350TL: its manual warns that "if the PowerPad is inadvertently held down, the battery will drain". Store it so nothing presses on the pad, for example in its own case rather than loose in a pocket of the bag.

Low-battery symptoms on a Callaway rangefinder

Callaway’s manuals name four signs that the battery needs changing:

• Empty battery icon: about 200 ranges left.
• Flashing battery icon: battery life is very low; replace it before the next use.
• No display when you press Power: the manuals’ first fix is a new battery.
• Readings that are consistently off: the 250 and 200s manuals list a battery change as the fix, and the 300 Pro manual says a weak battery signal "can affect the accuracy of the device".

Settings faults on the 300 Pro (no pulse vibration, two numbers on screen, yards and meters mixed up) are in the full symptom table on the Callaway 300 Pro page.

Cold-weather tip for Callaway rangefinder batteries

Callaway’s manuals tell owners not to store the rangefinder in extreme heat or cold, giving a range of below 50 °F or above 110 °F. A cart or car trunk on a frosty morning, or a hot summer afternoon, is outside that. In practice:

• Keep the rangefinder in the house, not the car, between rounds.
• On cold days carry it in a jacket pocket and only take it out to range. Lithium cells deliver less power when cold, so a low icon on a frosty morning does not always mean the cell is finished.
• Keep a spare CR2 in a warm pocket rather than the bag. The cold-weather ratings of the main CR2 brands are in the CR2 battery comparison.

Callaway rangefinder not working after a battery replacement?

1. Check the plastic cover and the cell. The protective cover must be out, and the CR2 must be a fresh 3-volt lithium cell, not an RCR2.
2. Tighten the cap fully. Turn it clockwise until it stops so the contacts meet.
3. Try a second, name-brand CR2. A new cell can be dead in the pack.
4. Warm it up. A unit that sat in a cold car may need time in a pocket.
5. Check the settings, not just the battery. A wrong yards/meters setting or slope switched on can look like a fault; see how to turn off slope.

If it still fails, work through the wider checks in rangefinder not working. A fault that survives a fresh battery is a warranty matter: the Callaway manuals give one year from the original purchase date, and how claims work across brands is in rangefinder repair and warranty.

Callaway rangefinder battery FAQ