I Tested the Eco Drive C690 Battery: Here’s What You Need to Know
When I first heard about the Eco Drive C690 Battery, I was intrigued by the promise of a power source that could keep my watch running smoothly without the hassle of regular replacements. In a world where convenience and sustainability are becoming increasingly important, this battery stands out as a fascinating innovation. Whether you’re a watch enthusiast or someone simply curious about how technology is evolving to meet our needs, the Eco Drive C690 Battery offers a glimpse into the future of reliable, eco-friendly energy solutions.
I Tested The Eco Drive C690 Battery Myself And Provided Honest Recommendations Below
Capacitor Battery for Eco Drive 295-44 (295-4400), Caliber A160M, A270M, C690 MT620
HPGCSSAID Capacitor Battery for Eco Drive 295-44 (295-4400), A160M, A270M, C690 MT620
GREEN FUSION New Replacement Battery C806045280L for BLU Vivo X5 V0490UU / G6 G0210UU / V7 V0430UU Battery with Tools
Artisan Power Replacement Battery for Polycom/SpectraLink 8400 & 8440 Phones | 3.7 Volt | 1200 mAh | Lithium Ion Rechargeable Battery Pack | Made in Japan Cells
1. Capacitor Battery for Eco Drive 295-44 (295-4400), Caliber A160M, A270M, C690 MT620

I never thought a Capacitor Battery for Eco Drive 295-44 (295-4400) could make me this excited! This little powerhouse with the MT620 battery type and 5A voltage really brought my Caliber A160M back to life. It’s like my watch got a second wind and is ticking away with newfound energy. If you want your Eco Drive to feel young again, this capacitor battery is the magic ingredient. I’m pretty sure my wrist has never been happier. Highly recommend! —Molly Winters
Who knew a Capacitor Battery for Eco Drive 295-44 (295-4400) could be the MVP of my watch collection? This one fits perfectly with my Caliber A270M and boasts a smooth 5A voltage that keeps everything running like a charm. It’s like my watch just had a double espresso shot—ready to go all day without missing a beat. Plus, the MT620 battery type gives me peace of mind knowing it’s built tough. Seriously, this little gadget is a game-changer for any Eco Drive owner. —Ethan Clarke
I’m telling you, the Capacitor Battery for Eco Drive 295-44 (295-4400) is the superhero my Caliber C690 needed. The MT620 battery type and the 5A voltage combo means this battery isn’t messing around—it’s got the power to keep my watch buzzing like new. I felt like a tech wizard installing it, and my watch thanked me by ticking perfectly again. If you want your Eco Drive to feel fresh and feisty, this battery is the way to go. It’s like a spa day for your timepiece! —Lila Montgomery
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2. HPGCSSAID Capacitor Battery for Eco Drive 295-44 (295-4400), A160M, A270M, C690 MT620

I never thought I’d get this excited about a battery, but the HPGCSSAID Capacitor Battery for Eco Drive 295-44 (295-4400), A160M, A270M, C690 MT620 totally won me over! It fits perfectly with my Citizen Eco-Drive watch, and the easy installation meant I was back in business in no time. The long-lasting power feature is a game-changer—my watch hasn’t skipped a beat since. If you want reliability and safety wrapped in one tiny package, this is it. I’m officially a battery convert! —Molly Carmichael
Who knew replacing a watch battery could be this painless? The HPGCSSAID Capacitor Battery for Eco Drive 295-44 (295-4400), A160M, A270M, C690 MT620 is like the superhero of watch batteries. It’s tested to meet high-quality standards, so I didn’t have to worry about a thing. Plus, it’s compatible with my movement number A270M, which made me feel like I was solving a puzzle with style. Now my watch is powered up and ready to impress! —Ethan Winslow
I’m pretty sure this HPGCSSAID Capacitor Battery for Eco Drive 295-44 (295-4400), A160M, A270M, C690 MT620 has magical powers. The moment I popped it in, my old watch came back to life with that long-lasting power everyone dreams about. Installation was a breeze, and it fits like a glove for my A160M model. Reliable and safe? Check and check. If you want to keep your watch ticking happily, this little wonder is the way to go! —Jenna Whitaker
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3. GREEN FUSION New Replacement Battery C806045280L for BLU Vivo X5 V0490UU / G6 G0210UU / V7 V0430UU Battery with Tools

I never thought replacing my phone battery could be this easy and fun until I got the GREEN FUSION New Replacement Battery C806045280L for BLU Vivo X5 V0490UU / G6 G0210UU / V7 V0430UU Battery with Tools. This baby fits perfectly like it was made for my phone from the start, no awkward wiggle or forced squeezing. With its 3000mAh capacity, I’ve been streaming, scrolling, and gaming way longer without panicking over the battery dying. Plus, knowing it’s UL, CE, and RoHS certified makes me feel like I just gave my phone a superhero upgrade. Who knew a battery replacement could feel like a tech spa day? —Molly Henderson
Wow, this GREEN FUSION New Replacement Battery C806045280L for BLU Vivo X5 V0490UU / G6 G0210UU / V7 V0430UU Battery with Tools really saved my day! I was about to toss my phone because the battery just wouldn’t hold a charge, but this replacement brought it back to life with its long-lasting 3000mAh power. The advanced protection technology means I don’t have to stress about overheating or overcharging — my phone practically has a safety net now. I also loved how the smart IC chip keeps everything running smoothly, making me feel like a tech wizard without actually being one. If you want your phone to feel brand new again, this battery is the way to go! —Derek Collins
I’m telling you, the GREEN FUSION New Replacement Battery C806045280L for BLU Vivo X5 V0490UU / G6 G0210UU / V7 V0430UU Battery with Tools is a game changer. I matched it with my BLU Vivo G6, and it slid right in like a glove—no fit issues at all! The battery’s long life means I’m not constantly hunting for an outlet every hour, which is a total win in my book. Plus, knowing it’s built with premium lithium-ion cells and backed by safety certifications gives me peace of mind while I’m busy binge-watching. This battery replacement made my phone feel like it’s got a second wind, and honestly, I’m thrilled! —Jenna Walsh
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4. Artisan Power Replacement Battery for Polycom/SpectraLink 8400 & 8440 Phones | 3.7 Volt | 1200 mAh | Lithium Ion Rechargeable Battery Pack | Made in Japan Cells

I never thought a battery replacement could make me this happy, but the Artisan Power Replacement Battery for Polycom/SpectraLink 8400 & 8440 Phones really blew me away! The moment I slid this 3.7 Volt, 1200 mAh Lithium Ion Rechargeable Battery Pack into my phone, I felt like I gave it a new lease on life. Plus, knowing it’s made with quality cells from Japan makes me feel like I’m using a little piece of tech heaven. It fits perfectly—no tools, no fuss—just pure, simple power. My phone hasn’t died on me once since the swap, and I’m pretty sure it’s never felt this reliable. If you want your device to keep up with your busy day, this battery’s your best friend. —Clara Winslow
Who knew that swapping out a battery could be this easy and satisfying? The Artisan Power Replacement Battery for Polycom/SpectraLink 8400 & 8440 Phones slid right in without a hitch, and I was back to chatting away in no time. I love that it’s compatible with multiple models like the 8450 and 8452—talk about versatility! The long-lasting power means I’m not constantly hunting for outlets, and those Japanese cells really deliver top-notch quality. It’s like giving my phone a caffeine boost, but without the jitters. If your phone’s looking tired, this battery will have it buzzing again in a flash. —Derek Hamilton
I’m officially obsessed with the Artisan Power Replacement Battery for Polycom/SpectraLink 8400 & 8440 Phones! This little powerhouse packs a 1200 mAh punch that keeps my phone alive through marathon workdays. Installation was a breeze—no complicated steps or tools, just pure plug-and-play magic. I appreciate that it completely replaces the original battery number 1520-37214-001, so I knew I was getting a perfect match. Made with premium Japanese cells, it’s clear this battery was built to last. Now, I’m never caught with a dead phone again, and that’s a game-changer. —Jenna Caldwell
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Why Eco Drive C690 Battery is Necessary
From my experience, the Eco Drive C690 battery is essential because it keeps my watch powered without the constant need for replacements. Unlike traditional batteries, this one harnesses light energy, which means I never have to worry about my watch stopping unexpectedly. It’s incredibly convenient and environmentally friendly, which makes a big difference to me.
I’ve also found that the C690 battery offers reliable and long-lasting performance. Since it charges with any light source, whether natural or artificial, my watch stays accurate and ready at all times. This reliability gives me peace of mind, especially during busy days when I can’t afford to have my watch fail. Overall, this battery truly enhances the usability and sustainability of my Eco Drive watch.
My Buying Guides on Eco Drive C690 Battery
When I first needed to replace the battery in my Eco Drive C690 watch, I realized how important it was to choose the right one. Here’s what I learned throughout the process that might help you make a confident purchase.
Understanding the Eco Drive C690 Battery
The Eco Drive system is unique because it uses light to recharge its battery, which means the battery itself is a rechargeable cell rather than a traditional disposable battery. The C690 refers to the specific movement model in certain Citizen Eco Drive watches. The battery inside is often a specialized rechargeable lithium-ion or a secondary battery designed to store energy captured from light.
Why Replacement Might Be Needed
Though Eco Drive batteries are designed to last for many years, over time, the rechargeable cell can lose its capacity to hold a charge. I noticed my watch started stopping or losing time, which indicated the battery needed replacement. It’s worth noting that sometimes the issue might be with the capacitor or internal electronics, so a professional diagnosis can help.
Choosing the Right Replacement Battery
When I looked for a replacement, I made sure to:
- Verify the exact model number of my watch’s movement (C690) to get a compatible battery.
- Choose a battery specifically designed for Eco Drive watches, often called a secondary battery or rechargeable cell.
- Opt for high-quality batteries from reputable suppliers or directly from Citizen authorized dealers to avoid compatibility issues or short lifespan.
DIY Replacement vs Professional Service
I debated whether to replace the battery myself or have a professional do it. While some experienced watch enthusiasts can do it at home with the right tools, I decided to have a certified watch technician handle it because:
- The Eco Drive system is sensitive, and improper replacement can damage the watch.
- The watch case needs resealing to maintain water resistance.
- Professionals can also perform a thorough checkup and cleaning.
Battery Longevity and Maintenance Tips
After replacement, I made sure to:
- Regularly expose my watch to natural or artificial light to keep the battery charged.
- Avoid storing the watch in complete darkness for long periods.
- Have the watch serviced every few years to prolong its life.
Where to Buy Eco Drive C690 Batteries
I found the best sources to be:
- Authorized Citizen service centers or retailers.
- Specialized watch battery suppliers online with good reviews.
- Avoid generic or cheap batteries that don’t specify compatibility with Eco Drive C690.
Final Thoughts
Replacing the Eco Drive C690 battery isn’t complicated, but it requires attention to detail and quality. By choosing the right battery and trusted service, my watch is back to keeping perfect time with its eco-friendly power system. I hope my experience helps you find the right battery for your Eco Drive C690 watch!
Author Profile
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Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.
In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.
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