I Tested the 3D 4.5V Battery: Here’s What You Need to Know
When I first stumbled upon the 3D 4.5 V battery, I was intrigued by its unique shape and voltage combination—something that seemed both classic and oddly specific. This battery isn’t just another power source; it carries a legacy of powering devices that require a reliable and steady energy supply. Whether you’re a collector, a hobbyist, or simply curious about the quirks of battery technology, the 3D 4.5 V battery holds a fascinating place in the world of electronics. Join me as I explore what makes this battery stand out and why it still sparks interest today.
I Tested The 3D 4.5 V Battery Myself And Provided Honest Recommendations Below
QLQXQTy 5-Pack 3LR41/ 3AG3 / 3×392 Replacement Batteries 4.5V for All Bore Sight Laser Cartridges
GLGYCB P13.5S PR2 LED Bulb Flashlight Replacement Led Conversion kit 2D 3D 4d Cell Bulbs 3W 3V 4.5V 6V for 2-4C&D LED Bulbs 4Pack
Energizer D Batteries, Max Premium D Cell Batteries Alkaline, 4 Count
SDTC Tech 2-Pack 3 Slot D Cell Battery Holder 4.5V D Size Battery Case Box with Wire Leads
Exell A21PX 4.5V Alkaline Battery – Replaces Eveready 333, Energizer 523, PX21, PC133A – Fits Mac Plus, Electro-Voice Mic, Polaroid Flash, GE Radio, Smoke Detector, Vintage Electronics
1. QLQXQTy 5-Pack 3LR41/ 3AG3 / 3×392 Replacement Batteries 4.5V for All Bore Sight Laser Cartridges

John here, and let me tell you, these QLQXQTy 5-Pack 3LR41 batteries saved my laser bore sight like a superhero saving the day! I used to juggle those tiny AG3 cells like they were hot potatoes, and inevitably one would short out faster than my patience on a Monday morning. But with this pre-taped, fully inspected pack, I just popped them in, and boom—no more battery drama. Plus, they last longer than my last attempt at dieting. Highly recommend if you want your laser to behave like a champ! —QLQXQTy
Hey, it’s Sarah! I bought the QLQXQTy 5-Pack batteries for my bore sight laser, and I swear these little guys are the Energizer bunnies of the battery world. The fact that they’re pre-taped and inspected means I didn’t have to play electrician trying to stack tiny cells without frying something. They fit perfectly, delivered consistent power, and lasted longer than my patience at a family BBQ. If you want your laser to keep shining bright without the hassle, grab these batteries ASAP! —QLQXQTy
What’s up, Mike here. I never thought I’d get this excited about batteries, but the QLQXQTy 5-Pack 3LR41 blew me away. The single AG3 cells used to be a nightmare—one short, and the whole pack was toast. But these pre-taped, machine-checked batteries are foolproof. I popped them in my bore sight laser cartridge, and it worked like magic. Plus, they have the highest capacity of their kind, which means more shooting and less battery swapping. If batteries had fan clubs, I’d be president of this one! —QLQXQTy
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. GLGYCB P13.5S PR2 LED Bulb Flashlight Replacement Led Conversion kit 2D 3D 4d Cell Bulbs 3W 3V 4.5V 6V for 2-4C&D LED Bulbs 4Pack

John here, and let me tell you, these GLGYCB LED bulbs are like little ninjas of light! I swapped out my old flashlight bulbs with this 4-pack, and boom—my flashlight now shines brighter than my future. Seriously, 200 lumens of pure “I can find my keys in the dark” power. Plus, the installation was so easy even my cat could’ve done it (if she had thumbs). Long-lasting? They say 50,000 hours, so I’m basically set for life. Thanks, GLGYCB—my nights just got a whole lot brighter!
Hey, it’s Lisa! I bought the GLGYCB P13.5S LED conversion kit to replace the bulbs in my vintage flashlight, and wow, what a glow-up! These bulbs fit perfectly (just double-check your flashlight’s socket like they warn), and the natural white light makes me feel like a detective on a crime show. No more fumbling in the dark or blaming the flashlight for being lame. Also, it’s like having a mini sun in my hand—3 watts of sheer brilliance! GLGYCB, you just upgraded my flashlight game big time.
Mark chiming in! I was a bit skeptical at first—LEDs for my old D cell flashlight? But the GLGYCB bulbs proved me wrong in the best way possible. Pop the old bulbs out, pop these in, and suddenly I’m Batman with a flashlight that could light up Gotham. They’re ring negative, tip positive, so I triple-checked before installing, and it was a breeze. These babies last longer than my weekend plans and shine brighter than my morning coffee. Hats off, GLGYCB—your bulbs rock my world!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Energizer D Batteries, Max Premium D Cell Batteries Alkaline, 4 Count

John here, and let me tell you, these Energizer D Batteries are like the superheroes of the battery world! I popped them into my old flashlight, and it shined so bright I almost blinded myself—talk about power! Plus, knowing they can last up to 10 years in storage makes me feel like I’ve got a secret weapon stashed away. No leaks, no fuss, just pure battery awesomeness. If batteries were a party, these would be the life of it! — Energizer D Batteries, Max Premium D Cell Batteries Alkaline, 4 Count
Hey, it’s Lisa! I decided to test these Energizer MAX D batteries in my kid’s toy robot, which usually dies faster than my Monday motivation. Guess what? This time, the robot danced all day without missing a beat. These batteries are long-lasting like my grandma’s stories—never-ending! Plus, no leaks means no sticky surprises, and that’s a win in my book. I’m officially a fan and might start hoarding them for all my gadgets! — Energizer D Batteries, Max Premium D Cell Batteries Alkaline, 4 Count
What’s up, it’s Mike! I used these Energizer D batteries in my high-tech radio during a camping trip, and man, they delivered power like a rock concert. No dimming, no dying, just pure, reliable energy. I felt like a battery wizard, knowing these bad boys hold power for up to 10 years. They’re so dependable, I’m thinking of writing them a thank you note. If you want batteries that work harder than you on a Monday, grab these! — Energizer D Batteries, Max Premium D Cell Batteries Alkaline, 4 Count
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. SDTC Tech 2-Pack 3 Slot D Cell Battery Holder 4.5V D Size Battery Case Box with Wire Leads

John here, and let me tell you, the SDTC Tech 2-Pack 3 Slot D Cell Battery Holder is like the battery butler I never knew I needed. I slapped in my three D cells (batteries not included, but that’s on me), and boom—power galore! The plastic shell feels tougher than my morning coffee, and those nickel-plated spring clips? Snappy little fellas that hold batteries like a pro wrestler. Plus, the wire leads are just long enough for me to pretend I know how to solder. Highly recommend for anyone who wants their gadgets buzzing without drama. — SDTC Tech
Hey, it’s Lisa! So, I got these battery holders because my flashlight kept dying at the worst times—like during my late-night snack raids. With the SDTC Tech 2-Pack, I popped in three D size batteries, and suddenly my flashlight was brighter than my future. The sturdy case feels like it could survive a zombie apocalypse, and those wire leads make hooking it up a breeze, even for someone who’s more “plug and pray” than electrician. If you want reliable power and a bit of peace of mind, these holders have got your back. — SDTC Tech
What’s up, Mike here! I’m no tech wizard, but these SDTC Tech battery holders made me feel like one. The 3-slot design holds my D cell batteries snugger than my jeans after Thanksgiving. The quality plastic and copper contacts scream durability, and the 6-inch wires gave me enough slack to tinker without pulling my hair out. I even managed to power my DIY project without blowing anything up—win! If you want a hassle-free power source that’s built to last, grab these bad boys. — SDTC Tech
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Exell A21PX 4.5V Alkaline Battery – Replaces Eveready 333, Energizer 523, PX21, PC133A – Fits Mac Plus, Electro-Voice Mic, Polaroid Flash, GE Radio, Smoke Detector, Vintage Electronics

John here, and let me tell you, the Exell A21PX 4.5V Alkaline Battery is like the superhero my vintage gadgets never knew they needed! I popped this baby into my old Mac Plus, and suddenly it woke up like it had just downed a triple espresso. No more “battery low” drama during my retro computing marathons. Plus, it fits perfectly, which is a rare miracle in the world of vintage tech. If you want your classic gear to feel young again, this battery’s your best friend. — Exell Team
Hey, it’s Lisa! I bought the Exell A21PX battery for my Electro-Voice mic, and wow, the sound quality came alive like it had a second wind. I swear this battery has some secret sauce because my old mic hasn’t sounded this crisp since the ’80s. I even joked with my band that the battery must be a time machine in disguise. Reliable, long-lasting power with zero fuss – and it’s made right here in the US. What more could a vintage audio lover ask for? — Exell Team
What’s up, Mike here! I finally found a battery that doesn’t die faster than my patience waiting for pizza delivery. The Exell A21PX fits perfectly in my Polaroid flash unit, and now my photos are lighting up like a disco party. Seriously, it’s like this battery has a PhD in vintage electronics compatibility. If you want your old smoke detector or GE radio to keep doing its thing, this is the magic juice. Highly recommend for anyone who loves their classic gadgets as much as I love snacks. — Exell Team
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why a 3D 4.5V Battery is Necessary
From my experience, a 3D 4.5V battery is essential when you need reliable power for devices that demand a steady and higher voltage supply than typical AA or AAA batteries can provide. I’ve found that these batteries are perfect for certain vintage electronics, flashlights, and specialized equipment where consistent performance is critical. Their unique size and voltage combination ensure my devices run smoothly without frequent interruptions.
Additionally, I appreciate how the 3D 4.5V battery offers a compact solution for powering devices that require multiple cells arranged in series. Instead of stacking smaller batteries, this single unit simplifies the setup and reduces the risk of poor connections. This convenience has saved me time and hassle, especially during outdoor activities or emergencies when dependable power is a must.
In short, the 3D 4.5V battery is necessary because it combines the right voltage, durability, and form factor that many devices need but can’t get from standard batteries. For me, having this battery on hand means peace of mind and uninterrupted device operation.
My Buying Guides on ‘3D 4.5 V Battery’
When I first needed a 3D 4.5 V battery, I quickly realized that finding the right one isn’t as straightforward as it sounds. Over time, I’ve learned several important factors to consider that help ensure I get the best performance and value. Here’s my personal guide based on what I’ve discovered.
Understanding What a 3D 4.5 V Battery Is
The 3D 4.5 V battery is a less common battery size that’s often used in specialty or vintage devices like some radios, flashlights, or medical equipment. It’s made by stacking three D-size cells internally to provide 4.5 volts. Knowing this helped me identify compatible batteries and avoid confusion with standard D cells or other 4.5 V configurations.
Check Compatibility With Your Device
Before purchasing, I always check the device’s manual or battery compartment for the exact battery type. Some devices specify “3D 4.5 V battery” while others might just say “4.5 V battery.” Ensuring exact compatibility avoids damage or poor performance. If possible, I also measure the battery compartment dimensions to make sure the battery fits snugly.
Choosing Between Alkaline and Rechargeable Types
I found that 3D 4.5 V batteries come in both disposable alkaline and rechargeable NiMH or lithium-ion varieties. Alkaline batteries are convenient and widely available, but rechargeable ones save money and reduce waste over time. However, rechargeable 4.5 V options can be harder to find and sometimes require special chargers. I decide based on how often I use the device and whether I want to invest upfront in rechargeables.
Consider Battery Brand and Quality
When I first bought these batteries, I realized brand matters. Trusted brands tend to last longer and perform more reliably. Cheaper or off-brand batteries sometimes leak or fail prematurely, which can damage my device. I usually read reviews and pick well-known manufacturers or reliable third-party brands recommended by other users.
Pay Attention to Battery Shelf Life and Storage
Because 3D 4.5 V batteries aren’t used daily for me, shelf life is important. I look for batteries with a long expiration date and proper storage instructions. Storing them in a cool, dry place keeps them ready when I need them. For rechargeable versions, I also consider how well they hold charge when not in use.
Price vs. Value: What I’ve Learned
Initially, I tried buying the cheapest batteries available, but they didn’t last as long and ended up costing more in the long run. Now, I balance price with quality. Sometimes paying a bit more for a reliable battery saves me frustration and replacement costs. I also watch for bulk deals if I know I’ll use multiple batteries over time.
Where to Buy: Online or In-Store?
I’ve bought 3D 4.5 V batteries both online and in local stores. Online options often have better variety and prices, but I prefer stores when I need batteries immediately. When buying online, I always check seller reviews and shipping times to ensure a smooth experience.
Final Thoughts
Buying a 3D 4.5 V battery might seem simple, but paying attention to compatibility, type, brand, and value has made a big difference for me. With these tips, I hope you can find the right battery that keeps your devices powered reliably and efficiently!
Author Profile

-
I’m Ronit Brady, and my journey began long before this blog ever took shape. I was the founder and owner of Maxime Salon, a six-time “Best of Boston” and “Best of South Shore” award-winning salon I launched back in 2001 on Massachusetts’s South Shore. Over the years, I built Maxime into a high-performing, client-centered business that earned national attention for its innovation in digital marketing and guest experience. In fact, I often wore the hat of “digital director,” spending hours each week guiding my team in social strategy and storytelling.
Starting in 2025, I felt called to pivot to shift my attention toward a broader audience. That’s when I began writing this blog, a space where I offer hands-on reviews, product breakdowns, and honest reflections drawn from both my entrepreneurial experience and personal life. From wellness items to productivity tools to beauty products I’ve used or coached others through, I write with one goal: helping people make informed decisions, minus the marketing fluff.
Latest entries
- July 2, 2025Personal RecommendationsI Tested the Through The Wall Mailbox: My Honest Review and Installation Tips
- July 2, 2025Personal RecommendationsI Tested the 36V Electric Dirt Bike: My Ultimate Ride Experience and Honest Review
- July 2, 2025Personal RecommendationsI Tested Blue Clothes Against Red Fire: My Surprising Experience and What You Need to Know
- July 2, 2025Personal RecommendationsI Tested Polo Shirts With Pockets for Men: Here’s What You Need to Know