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cosmos1226
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I have supercapcitor 2.7V, 350F. I want to charge it by 0.001mA 20V power source. Is it safe?
Thanks you!.
Thanks you!.
What arrangement will you use to charge it? How do you know your power supply is limited to 0.001mA?cosmos1226 said:I have supercapcitor 2.7V, 350F. I want to charge it by 0.001mA 20V power source. Is it safe?
Thanks you!.
Is the capacitor rating 2.7V or 27V?cosmos1226 said:I'm experimenting power supply 20V for charging 27V capacitor 350F. Supercapacitor is loaded, but does know it safe?
. maxwell supercapacitor 2.7V 350F. thánks youNascentOxygen said:Is the capacitor rating 2.7V or 27V?
Although the voltage is 20V but only amperage 10mV (it as a leak). so, I do not want to pass any parts change any power consuming.NascentOxygen said:You could connect a pair of resistors as a potential divider to reduce your 20V down to a safe level, say 2.2V. Then the supercapacitor could be safely left to charge unsupervised, and you'd know that in a few decades it should be almost fully charged to 2.2V
You haven't answered why you want to charge it at 0.001mA, and I presume that is not the figure you intend.
10mV is not a currentcosmos1226 said:amperage 10mV
I'm sorry, 10mANascentOxygen said:10mV is not a current
In theory, you could connect a parallel 2.2V zener diode to limit the capacitor's voltage at 2.2V, but a practical zener would have significant leakage current below a capacitor voltage of 2.2V.
So it's 10mA now!cosmos1226 said:I'm sorry, 10mA
The charging time for a supercapacitor depends on several factors such as the capacitance, voltage, and charging current. Generally, it can take anywhere from a few seconds to a few minutes to fully charge a supercapacitor. However, with advancements in technology, the charging time for supercapacitors is expected to decrease in the future.
The maximum voltage that can be applied during charging varies depending on the type and size of the supercapacitor. Generally, the maximum voltage ranges from 2.5V to 5.5V. It is important to follow the manufacturer's recommendations for the maximum voltage to prevent damage to the supercapacitor.
Yes, a supercapacitor can be overcharged if the maximum voltage is exceeded. Overcharging can lead to irreversible damage and reduce the lifespan of the supercapacitor. It is important to monitor the charging process and use a charging circuit that automatically stops when the maximum voltage is reached.
Yes, a supercapacitor can be charged using a solar panel. However, the charging time and efficiency will depend on the size of the solar panel, the amount of sunlight, and the capacity of the supercapacitor. Additionally, a charging circuit may be needed to regulate the voltage and prevent overcharging.
The main difference between charging a supercapacitor and a battery is the mechanism of energy storage. Batteries store energy through chemical reactions, while supercapacitors store energy through the separation of positive and negative ions in an electrolyte. This results in a much faster charging time for supercapacitors compared to batteries. Additionally, supercapacitors have a longer lifespan and can withstand a higher number of charge-discharge cycles compared to batteries.