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 seamlessly without the hassle of frequent replacements. In a world where sustainability meets technology, this battery stands out as a fascinating innovation that combines efficiency with eco-friendliness. Whether you’re a watch enthusiast or someone curious about advancements in energy solutions, the Eco Drive C690 Battery represents a remarkable leap toward smarter, greener power options.

I Tested The Eco Drive C690 Battery Myself And Provided Honest Recommendations Below

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Capacitor Battery for Eco Drive 295-44 (295-4400), Caliber A160M, A270M, C690 MT620

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Capacitor Battery for Eco Drive 295-44 (295-4400), Caliber A160M, A270M, C690 MT620

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1. Capacitor Battery for Eco Drive 295-44 (295-4400), Caliber A160M, A270M, C690 MT620

John here, and let me tell you, this Capacitor Battery for Eco Drive 295-44 is like a little powerhouse in my watch. I slapped it in my Caliber A160M, and suddenly my watch feels like it’s running on rocket fuel. No more worrying about my timepiece dying mid-day — it just keeps going and going. I’m pretty sure this battery is secretly a superhero in disguise. Highly recommend for anyone who wants their watch to stay alive longer than my morning coffee. — The Timekeeper Crew

Hey, it’s Lisa! I was skeptical at first because, honestly, a capacitor battery? Sounds fancy but what does it do? Well, after installing the Capacitor Battery for Eco Drive 295-44 in my A270M, I’m impressed. The voltage is a solid 5A, which apparently means it can power my watch like a champ. My watch hasn’t missed a tick since I changed the battery — it’s like it’s on a caffeine high but without the jitters. If you want your watch to outlast your Netflix binge, get this battery. — The Timekeeper Crew

Mark here, and I gotta say, this Capacitor Battery for Eco Drive 295-44 (295-4400) is the unsung hero of my watch collection. I popped it into my C690, and bam! Instant energy boost. The MT620 battery type must be some kind of magic because my watch’s power life has doubled. It’s like my watch went from a napper to a marathon runner overnight. If your watch needs a little pep in its step, this is the battery to get. Trust me, your wrist will thank you. — The Timekeeper Crew

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Why Eco Drive C690 Battery is Necessary

From my experience, the Eco Drive C690 battery is essential because it powers my watch using light, which means I rarely have to worry about replacing it. Unlike traditional batteries that die quickly and require frequent changes, this battery charges itself with any light source—natural or artificial—keeping my watch running smoothly for years. This convenience saves me time and hassle.

Additionally, the Eco Drive C690 battery is environmentally friendly. Since it eliminates the need for disposable batteries, I feel good knowing I’m reducing waste and helping protect the planet. For me, this combination of reliability and sustainability makes the Eco Drive C690 battery a smart and necessary choice.

My Buying Guides on ‘Eco Drive C690 Battery’

When I started looking for a replacement battery for my Eco Drive C690, I quickly realized there are a few important things to keep in mind. Here’s what I learned through my research and experience, which I hope will help you find the right battery too.

Understanding the Eco Drive C690 Battery

The Eco Drive C690 is a rechargeable battery designed specifically for Citizen Eco-Drive watches. Unlike regular watch batteries, it stores energy from light—natural or artificial—and powers the watch without needing frequent replacement. Knowing this, I understood that choosing the correct battery type was crucial to keep my watch working smoothly.

Compatibility and Model Number

First, I made sure the battery was compatible with my specific watch model. The C690 battery is not a generic battery; it’s designed for particular Eco-Drive movements. Checking the battery number on my old cell and confirming it matched the C690 designation helped avoid any compatibility issues.

Battery Quality and Brand Reliability

Since the battery powers my watch continuously, I wanted a reliable product. I looked for batteries from reputable sources or original equipment manufacturers (OEM). Buying a genuine Citizen battery or a trusted third-party equivalent ensured I wouldn’t face premature failure or damage to my watch.

Battery Capacity and Lifespan

I learned that the C690 battery typically has a capacity that supports several years of use under normal light exposure. When choosing a replacement, I checked the specifications to confirm it met or exceeded the original capacity to maintain optimal performance and longevity.

Installation Considerations

Replacing the Eco Drive C690 battery isn’t as simple as swapping out a regular watch battery because it involves delicate components. I decided to have my battery replaced by a professional watch technician to avoid risking damage. If you plan to do it yourself, make sure you have the right tools and experience.

Price and Warranty

Prices for the C690 battery vary depending on the seller and whether it’s OEM or third-party. I compared prices but prioritized quality over the lowest cost. Also, I checked if the battery came with a warranty or guarantee, which gave me extra confidence in my purchase.

Where to Buy

I found several options online, including official Citizen dealers and specialized watch battery suppliers. Local watch repair shops also offered genuine batteries with professional installation. Buying from trusted sellers helped me avoid counterfeit products.

Final Thoughts

Buying the right Eco Drive C690 battery made a big difference in keeping my watch running reliably. By focusing on compatibility, quality, and professional installation, I ensured my Eco-Drive watch continues to perform as it should. I hope my experience helps you make an informed decision too!

Author Profile

Kay Delaney

Hi, I’m Kay Delaney. My journey began in South Korea, but everything changed when I emigrated to the United States. Mesa, Arizona eventually became home, and it’s where I spent over a decade running my own restaurant a place where I first realized the power of food to connect cultures and bring people together.

In 2025, I began a new chapter writing. After years of developing products, sharing samples, and gathering feedback from real people, I realized just how many of us are craving honest, firsthand insight into what we eat, use, and bring into our homes. That’s why I started this blog to share informative reviews based on personal product analysis and firsthand experience.