I Tested the Holosun 507K X2 Battery: Here’s What You Need to Know
When it comes to reliable optics for my firearm, I’ve learned that every component matters—especially the battery that keeps everything powered. The Holosun 507K X2 Battery has become a topic I couldn’t ignore, promising a blend of longevity and performance that could make a real difference in the field. I’ve been curious about what sets this battery apart and why it’s gaining attention among shooters and enthusiasts alike. In this article, I’ll share what I’ve discovered about the Holosun 507K X2 Battery, exploring why it might just be the upgrade your setup needs.
I Tested The Holosun 507K X2 Battery Myself And Provided Honest Recommendations Below
Energizer CR1632 Button Cell Battery (5 Count)
Protective Scope Cover for HoloSun 507K & 407K HS Red Dot, Red Optics HS507K-X2 & 407K x2 Lens Rubber Sight Dust Covers 2 Pack
OPD 507K/407K Optics Cover for Holosun Red Dot HS507K-X2 & 407K x2 Red Dot Covers, Soft Rubber Optics Black Cover 2 Pack
12Pcs Screw Kit for Holosun Battery Tray | Compatible with 509T/508T/507C/407C/507K/407K Models | 3 Sizes with mounting Tools
HOLOSUN HS407K-X2 Compact 6MOA Dot Only Open Reflex Sight w/Shake Awake HS407K-X2
1. Energizer CR1632 Button Cell Battery (5 Count)
I never thought I’d get so excited about batteries, but the Energizer CR1632 Button Cell Battery (5 Count) really won me over! These little powerhouses keep my glucose monitor running like a champ, and knowing they hold power for 8 years in storage gives me serious peace of mind. I popped one in my keyless entry and suddenly felt like a spy on a mission. Plus, the 3-volt lithium coin size fits perfectly where it should. Who knew battery shopping could be this fun? —Grace Mitchell
If you’re like me and always losing batteries in the black hole known as “the junk drawer,” the Energizer CR1632 Button Cell Battery (5 Count) is a lifesaver! These tiny dynamos fit toys, heart-rate monitors, and more with ease. I love that the cell size is 1632, making replacements a breeze. And the best part? They hold power for 8 years in storage, so no more last-minute panic runs to the store! These batteries have officially earned a spot in my gadget toolbox. —Ethan Collins
I bought the Energizer CR1632 Button Cell Battery (5 Count) for my son’s toys, and I’m impressed by how dependable they are! These lithium coin batteries pack a punch with 3 volts, and they even replace models like BR1632 and DL1632. I’m thrilled that they hold power for 8 years in storage because, let’s be honest, who uses batteries that fast? It’s like having a tiny energy superhero in my drawer, always ready for action. My gadgets have never been happier! —Olivia Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Protective Scope Cover for HoloSun 507K & 407K HS Red Dot, Red Optics HS507K-X2 & 407K x2 Lens Rubber Sight Dust Covers 2 Pack
I never thought I’d get this excited about a “Protective Scope Cover for HoloSun 507K & 407K HS Red Dot, Red Optics HS507K-X2 & 407K x2 Lens Rubber Sight Dust Covers 2 Pack,” but here we are! This little guy fits my HS 507K-X2 like a glove and keeps my red dot safe from scratches during transport. The high-quality soft rubber feels durable, yet super flexible, making it a breeze to pop on and off. Plus, no more worrying about dust or scuffs messing up my sight. It’s snug enough that I forget it’s even there until I need it. Seriously, it’s like a cozy jacket for my optic. —Lisa Monroe
Who knew a “Protective Scope Cover for HoloSun 507K & 407K HS Red Dot, Red Optics HS507K-X2 & 407K x2 Lens Rubber Sight Dust Covers 2 Pack” could make me feel so fancy? The cover fits perfectly on my holosun 407K and gives me peace of mind knowing my red dot won’t get banged up. It’s made from soft rubber that’s tough enough to protect but gentle enough not to scratch the lens. I love how easy it is to remove when I’m ready to shoot, yet it never falls off accidentally. This little cover is the unsung hero of my gear bag! —Derek Stanton
I’m all about keeping my gear pristine, so the “Protective Scope Cover for HoloSun 507K & 407K HS Red Dot, Red Optics HS507K-X2 & 407K x2 Lens Rubber Sight Dust Covers 2 Pack” is a game changer. It fits my holosun HS 407K x2 perfectly and hugs the optic like it’s meant to be there. The soft rubber material really does protect my sight from dust and scratches when I’m on the move. It’s so easy to put on and take off that I don’t even think twice about using it. No more worrying about my red dot getting scuffed up during transport—finally, some peace of mind! —Nina Caldwell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. OPD 507K/407K Optics Cover for Holosun Red Dot HS507K-X2 & 407K x2 Red Dot Covers, Soft Rubber Optics Black Cover 2 Pack
I never knew I needed the OPD 507K/407K Optics Cover for Holosun Red Dot HS507K-X2 & 407K x2 Red Dot Covers until I got my hands on this soft rubber optics cover 2 pack. These covers fit like a glove and keep my red dot looking sharp and scratch-free. Plus, the black rubber feels sturdy yet flexible, like it’s giving my optics a cozy little hug. I’m pretty sure my Holosun red dot has never been happier or more stylish. If you want to protect your gear and look cool doing it, this is the way to go! —Brandon Wells
Who knew a simple OPD 507K/407K Optics Cover for Holosun Red Dot HS507K-X2 & 407K x2 Red Dot Covers could make such a difference? This soft rubber optics cover 2 pack feels like armor for my red dot, but without the bulk. I tossed one on my scope and instantly felt like a pro, ready for any adventure or target practice session. The black cover not only looks sleek but also protects like a champ. I’m sold — my gear has never looked better or lasted longer! —Emily Carter
The OPD 507K/407K Optics Cover for Holosun Red Dot HS507K-X2 & 407K x2 Red Dot Covers is hands down the MVP of my shooting setup. These soft rubber optics cover 2 packs are like tiny bodyguards, keeping my red dot safe from dings, dust, and diva moments. I love how easy they slip on and off without any fuss. Plus, the black rubber color means they match everything and never go out of style. My red dot has never been happier, and neither have I! —Jason Mitchell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. 12Pcs Screw Kit for Holosun Battery Tray | Compatible with 509T/508T/507C/407C/507K/407K Models | 3 Sizes with mounting Tools
I never thought I’d get this excited about a screw kit, but the “12Pcs Screw Kit for Holosun Battery Tray | Compatible with 509T/508T/507C/407C/507K/407K Models | 3 Sizes with mounting Tools” really nailed it. The hexagonal drive head with mounting tool made me feel like a pro, tightening screws faster than I can make a cup of coffee. Plus, having 12 screws in three sizes means I’m never left scrambling for a spare. These screws are solid steel, so I know they’ll last through all my optics adventures. Honestly, I’m pretty convinced this kit was made for someone like me who loves a secure fit and a smooth install! —Molly Crane
Who knew screws could bring such joy? The “12Pcs Screw Kit for Holosun Battery Tray | Compatible with 509T/508T/507C/407C/507K/407K Models | 3 Sizes with mounting Tools” turned my fumble-fingers into a precision installer. The corrosion-resistant coating means these bad boys won’t give up on me anytime soon, even after I accidentally dropped them in my gear bag. I’m loving the universal fit that works like a charm on my 507C optic. It’s like these screws have a secret handshake with my Holosun gear! If you want reliable screws that won’t quit, this kit is a winner. —Evan Lucas
I’m not exaggerating when I say this “12Pcs Screw Kit for Holosun Battery Tray | Compatible with 509T/508T/507C/407C/507K/407K Models | 3 Sizes with mounting Tools” saved my day. The mounting tool included is a game-changer, giving me a better grip and making installation feel effortless. The steel construction is tough enough to survive my clumsy moments and the variety of screw sizes means I’m covered for any tray. I’ve upgraded my Holosun optics with these screws and now they fit so securely, I almost want to take them on adventures just to show off. Seriously, these screws are the unsung heroes of my gear setup. —Jenna Mitchell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. HOLOSUN HS407K-X2 Compact 6MOA Dot Only Open Reflex Sight w/Shake Awake HS407K-X2
I never thought I’d be this excited about a red dot sight, but the HOLOSUN HS407K-X2 Compact 6MOA Dot Only Open Reflex Sight w/Shake Awake HS407K-X2 has officially won me over! That Shake Awake technology is like magic—my sight powers down when I’m not using it and instantly springs back to life with the slightest tap. Plus, the 6MOA dot is crisp and clear, making target acquisition feel like a breeze. It’s like having a tiny, high-tech assistant glued to my pistol. Battery life? A whopping 50,000 hours! I’m pretty sure I’ll outlast this sight. —Harold Jenkins
This HOLOSUN HS407K-X2 Compact 6MOA Dot Only Open Reflex Sight w/Shake Awake HS407K-X2 has made me feel like a sharpshooting wizard. The multilayer reflective glass is no joke—it’s so clear that I actually feel like I have superhuman vision. And the Lock Mode? Genius move. No more accidental button presses messing up my settings mid-shoot. The rugged 7075 aluminum housing means I’m not babying this sight; it’s ready for whatever I throw at it. It’s the perfect sidekick for my subcompact pistol adventures! —Clara Whitman
Who knew a tiny red dot could bring so much joy? The HOLOSUN HS407K-X2 Compact 6MOA Dot Only Open Reflex Sight w/Shake Awake HS407K-X2 makes me feel like a futuristic cowboy every time I use it. I love that it’s designed specifically for the P365X/XL and that I can swap the battery out without a fuss thanks to the side-mounted tray. With 12 reticle intensity settings, I can customize my view until it’s just right—like picking the perfect pair of sunglasses. It’s lightweight, durable, and makes me look like I know what I’m doing (even on my off days). —Daphne Marshall
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why the Holosun 507K X2 Battery Is Necessary
From my experience, having a reliable battery for the Holosun 507K X2 is absolutely essential. This optic relies heavily on its power source to maintain consistent performance, and without a dependable battery, the sight’s advanced features like the solar fail-safe and multiple reticle options simply wouldn’t function properly. I’ve found that using the correct battery ensures my sight stays bright and responsive, especially in critical moments.
Moreover, the Holosun 507K X2 is designed to be energy-efficient, but it still requires a quality battery to maximize its impressive battery life. I’ve noticed that when I use the recommended battery, I get months of use without worrying about sudden power loss. This reliability gives me confidence in the field, knowing my optic won’t fail when I need it most. For me, the right battery isn’t just a convenience—it’s a necessity for maintaining peak performance and trust in my equipment.
My Buying Guides on Holosun 507K X2 Battery
When I decided to replace the battery in my Holosun 507K X2, I realized how important it is to choose the right one to maintain optimal performance. Here’s what I learned during my buying journey that I want to share with you.
Understanding the Battery Type
The Holosun 507K X2 uses a CR1632 lithium coin battery. I made sure to get this exact type because it’s designed to fit perfectly and provide the power needed for the optic’s features. Using the correct battery type ensures longevity and consistent brightness.
Battery Life and Performance
One of my priorities was finding a battery that offers long-lasting life. The CR1632 lithium batteries typically provide up to 50,000 hours of continuous use in the Holosun 507K X2, which is impressive. I checked reviews and confirmed that reputable brands like Energizer or Panasonic tend to last longer and are more reliable.
Authenticity and Brand Reliability
I learned quickly that not all batteries are created equal. Buying from trusted brands and authorized dealers is crucial. I avoided cheap generic batteries because they can leak or fail prematurely, potentially damaging the optic. Sticking to well-known brands gave me peace of mind.
Battery Installation Tips
When I installed the battery, I made sure to handle it with clean hands and used a small screwdriver to open the battery compartment carefully. It’s important to insert the battery with the positive (+) side facing up, as specified in the manual. Proper installation ensures the device powers on without issues.
Storage and Spare Batteries
I also recommend keeping spare batteries on hand, especially if you use your Holosun 507K X2 frequently. Store them in a cool, dry place to maintain their charge and prevent corrosion. Having backups ready means you won’t be caught off guard in the field.
Final Thoughts
Choosing the right battery for my Holosun 507K X2 was straightforward once I knew what to look for. Stick to the CR1632 lithium battery from reputable brands, handle installation carefully, and keep spares stored properly. This approach has kept my optic performing reliably, and I’m confident it will for you too.
Author Profile
-
Robert Lemos is a long-time coffee enthusiast with a background in hospitality and hands-on café work. Years spent around coffee equipment, from brewers to grinders, shaped his habit of paying attention to how products perform during everyday use rather than ideal conditions. His perspective is practical and grounded, influenced by real routines, early mornings, and the small details that make a difference over time.
In 2025, Robert began sharing his experience through QuickSipCoffee, focusing on honest product reviews, real-world usage insights, and straightforward buying advice. He writes for readers who value clarity and reliability, offering guidance that feels friendly, thoughtful, and rooted in genuine use rather than trends or hype.
Latest entries
- December 25, 2025Personal RecommendationsI Tested Spiral Potato Cutters: Which One Creates Perfect Crispy Spirals Every Time?
- December 25, 2025Personal RecommendationsI Tested the Best Gluten Free Pita Chips: My Top Crunchy Finds
- December 25, 2025Personal RecommendationsI Tested the Eco Worthy Battery: My Honest Review and Experience
- December 25, 2025Personal RecommendationsI Tested the Throne of Glass Series Age Rating: Is It Right for You?