Rayovac
Dead batteries are the most common reason a red dot, flashlight, or rangefinder fails at the worst possible time. Impact Guns stocks Rayovac and Energizer batteries in every common size — AA, AAA, C, D, and the CR2032 and CR2 cells that power optics and rangefinders — plus a small lineup of tactical flashlights.
Read our full Batteries Buying Guide ↓
Alkaline vs. Lithium: Which Battery for Which Device
Alkaline AA, AAA, C, and D batteries (Rayovac High Energy, Energizer Max) are the standard choice for flashlights and general gear — inexpensive and widely available. Lithium batteries (Energizer Ultimate Lithium, Rayovac Ultimate Lithium) hold up better in cold weather and have a longer shelf life, which matters for a battery that sits in a stored optic or backup flashlight for months between uses.
CR2032 and CR2: The Optics Batteries
Most red dot sights and many rangefinders run on a CR2032 coin cell or a CR2 cylindrical lithium battery. Both Rayovac and Energizer make these in the same standard sizes, so any brand works as long as the size matches your optic's manual. Keeping a spare CR2032 in your range bag is cheap insurance against a dead optic on a hunt or match day.
Choosing Battery Capacity for High-Drain Devices
Weapon lights and higher-output flashlights draw more current than a household remote, and battery capacity (measured in mAh) matters more here than for low-drain devices. Rayovac's High Energy line and Energizer's Max and Ultimate Lithium lines are rated for higher-drain use — check your specific light or optic's manual for the recommended battery type before assuming any AA will do.
Frequently Asked Questions
Does Impact Guns carry both Rayovac and Energizer?
Yes — this category covers both brands across AA, AAA, C, D, CR2032, and CR2 sizes, plus a small selection of flashlights.
Should I use lithium or alkaline batteries in my red dot sight?
Check your optic's manual first, but most modern red dots are rated for standard CR2032 lithium coin cells. Lithium batteries generally last longer in storage and perform better in cold weather than alkaline.
See Also: Optics • Flashlights