How do you know when your Citizen Eco-Drive is fully charged?

By Matthew Joseph Nandirio •  Updated: 08/24/21 •  5 min read

The best output you can expect from a solar-powered watch is its continuous recharging capability. And, when it comes to the brand Citizen Eco-Drive, I think very few solar watches are there to beat them.

This brand Citizen uses powerful solar technologies that generate power by capturing light energy from any light source.

Solar Inverter
Solar Inverter

However, although its rechargeable cell keeps the watch always charging, it needs to be fully charged to ensure its better ticking performance.

But, here comes the question- how do you know when your Citizen Eco-Drive is fully charged? Is there a way to know it?

Well, in this article, I’ll tell you how to check if your watch is fully charged. So, let’s get into the article to know more!

How do you check the charge on your Citizen Eco-Drive watch?

To check the charge on your Citizen Eco-Drive watch, you have to know the charge level of your solar-powered watch. This Eco-Drive watch comes with many amazing features like a low charge warning feature, power save function, quick start, power reserve indicator, overcharge protector, etc.

Therefore, the charging system is one of the most incredible things about this watch. With the help of these features, you can easily find out how much charge is left on your watch and whether it is fully charged.

Especially with the power reserve indicator, checking will be more convenient for you. This feature of this watch shows you the power reserve level.

When your watch is fully charged, this indicator is at the highest charge level-3. It means that you don’t have to charge anymore. Besides, at this stage, this power reserve is full of running all the features of your watch and delivers optimal ticking performance.

However, your watch can operate all the features and functions with the highest charge level for approximately 160-210 days.

Yet, if the charge level of the watch reaches level-0, it means that there isn’t enough power to run your timepiece. So, to ensure its optimal performance, you have to charge your Eco-Drive solar watch immediately.

Moreover, the overcharge protection feature of your watch stops recharging just after it is fully charged. Therefore, by checking this, you can also ensure the charge level of the Eco-Drive watch.

How long does it take your Citizen Eco-Drive watch to charge fully?

How long it takes your Citizen Eco-Drive to watch to fully charge entirely depends on some factors such as your watch model and design, source of the light to charge your watch, environmental condition, etc.

As I said before, the Citizen brand produces their solar watch providing Citizen’s proprietary solar technology. Therefore, this Eco-Drive watch features solar rechargeable cells that can draw power from sunlight and artificial light.

And then, this solar cell converts the light into electrical energy and stores the power with the help of the power save function of the watch.

So, whenever you feel like your watch needs to be charged or gives you a low charge warning, you need to put your watch under the light.

And, it really doesn’t matter if the light source is natural or artificial; however, the timing of charge depends on the type of light source.

For example, exposing your Citizen Eco-Drive watch to natural light, whether it’s sunny or cloudy, takes less time to charge fully. On the other hand, exposing it to an artificial light source like an office lamp takes a long time to charge your watch fully.

And also, depending on the light source, the illuminance or lux level of light varies, which also affects the charging time.

Well, here is a charging timing chart to help you know how long it will take to charge your Citizen Eco-Drive watch fully.

Light Source and Weather Condition LUX level The Time Needed to Charge the Watch The Time Needed to Charge the Watch The Time Needed to Charge the Watch The Time Needed to Charge the Watch
For two-hand watch model For two-hand watch model For the three-hand watch model For the three-hand watch model
For one-day usage For full charge For one-day usage For full charge
Natural light with sunny weather 100000 lux 2 minutes 7 hours 3 minutes 3 hours and 30 minutes
Natural light with cloudy weather 10000 lux 4 minutes 20 hours 7 minutes 9 hours
Artificial light with 20 cm and 30W fluorescent lamp 3000 lux 12 minutes 57 hours 20 minutes 24 hours

Can you overcharge your Citizen Eco-Drive watch?

As you may know, overcharging puts the watch’s battery in bad condition. However, this is not the case with your Citizen Eco-Drive watch. This watch basically doesn’t need a battery at all as it uses solar rechargeable cells to charge. Besides, it comes with an overcharging protection function.

This function eliminates the risk of overcharging as this feature includes in your watch system. So, you don’t need to worry about overcharging your watch.

Here, if your Eco-Drive watch is fully recharged and the power reserve has been reached at a sufficient level, this function stops the watch from charging. Thus, it ultimately prevents overcharging of the watch.

Final thought

All right, in this article, I have tried to give you a detailed idea about the charging time of this Citizen Eco-Drive solar-powered watch. Therefore, you can know how long it takes to charge a watch, how you check the watch’s full charge level, and much more.

So, by now, hopefully, after reading the whole article, you have found out your answers on How do you know when your Citizen Eco-Drive is fully charged?

So, no more waiting, fully charge your Eco-Drive watch and enjoy its incredible features and also the tick-tock ticking chirpings!

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Matthew Joseph Nandirio

Matthew Joseph Nandirio is the Founder of walkingsolar. After graduating from the University of Houston in 2002, matt started working as an electrical and electronic engineer for several multi-national solar energy companies. He has a wide range of experiences including solar system requirement analysis, planning, maintaining, debugging and even solar device development through research. He now shares his 20 years of expertise through his articles on the walkingsolar website. Further, he is also the author of two books on Solar Technology, “Solar Power for Villages” and “DIY Solar System for Dummies”.