Casio fx-991CNX uses dual solar power input and button batteries. Simply place the calculator in the sun and it will charge automatically. When powered by solar energy, a glowing sun-shaped logo appears on the screen. Among Casio's calculators, this is the only one that the fx-991CNX has. However, even though it is solar powered, it is best to replace the coin cell battery from time to time, as discarded batteries left in the calculator will damage the calculator and shorten its lifespan.
How much does it cost to replace a solar battery in a Casio watch?
Go to a maintenance center to replace the battery. Usually do not remove it yourself. Casio watch series are waterproof, so you need to apply waterproof paste. In addition to installing waterproof joints, professional knowledge is required.
After being cFully charged by light (any light), a photokinetic watch can work continuously in a dark environment for 3-6 months. In addition, the lifespan of photodynamic watch batteries is generally around 15 to 20 years, and they can be used for a long time.
It is therefore once again proven that the battery of the light-powered watch does not need to be replaced regularly. However, for your photokinetic watch to work properly, it is recommended to charge it in the sun once a month or store it in a transparent watch box so that it can be recharged at any time;
Detailed information
Technical certification requirements
1. Photodynamic Watches: Different types of watches powered solely by solar battery systems. watch.
2. Photodynamic energy battery system: the batt systemSolar power in this technical requirement refers to the power system of the entire watch, which includes photoelectric components that convert light energy into electrical energy and rechargeable batteries or capacitors that store electrical energy.
Technical content
1. Rechargeable batteries or capacitors of the product must not contain heavy metals such as mercury, cadmium and their compounds.
2. Hazardous substances such as CFC gas, carbon tetrachloride and trichlorethylene should not be used in the production process of products or raw materials.
3. Once the energy storage component is fully charged, the product should be able to operate normally within seven days if placed in a location where it cannot be charged (i.e. in the dark) .
4. The product must have an anti-overload device.
5. Under normal conditions of use, the lifespan of the photodynamic battery system must be guaranteed for at least seven years.
6. The design of the product should ensure that it can operate normally even if ordinary batteries are installed.
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Can Casio solar watches run on regular batteries?
Solar batteries seem to be a little different. I have a Seiko one, which is also solar powered. The battery, which is different from ordinary button batteries, is that there is a small pole on the battery. The watch repairman said it would cost 200 yuan each and you had to order it. . . . . GeneralAs mentioned above, ordinary 3 and 40 button batteries cannot be used. The Casio solar watch contains a battery rechargeable, which is several times more expensive than a regular battery. Voltage is also specific. Direct replacement will cause the watch to overcharge and burn out during the charging process, so it cannot be replaced. Casio watches were founded in 1946. The brand image of vitality, youth, fashion and multifunctionality represented by Casio is deeply rooted in people's hearts. Casio solar watches are also called Casio lightweight watches.