All Questions
Tagged with supercapacitor batteries
39
questions
0
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2
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73
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Replacing Li-ion battery in a game controller with a supercapacitor
My game controller's Li-ion pouch battery is swollen and has died. I was thinking if it was possible to replace the internal battery with capacitor/supercapacitor. I don't need the wireless ...
0
votes
0
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50
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Charging a super cap with a Li-po battery while maintaining charge
I have a 3 V 100 F capacitor and 400 mAh 35 C battery, the battery is to be charging the super capacitor and maintaining charge until a button is pressed to discharge the super cap. I am stuck with ...
- 407
1
vote
0
answers
178
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Super capacitor causing overcurrent protection
I'm making a power-supply circuit for some MCUs using a battery charging-discharging protect module MH-CD42 (both input and output is 5 V).
The module's datasheet says it has a 0.3 seconds switch time ...
- 111
3
votes
1
answer
157
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Using super capacitor with Li-ion battery to power an automated guided vehicle
I have an automated guided vehicle which is powering by a 11.1V, 25C, 6000mAh Li-ion battery. The reason I am attempting to make a hybrid power source to power the automated guided vehicle is to ...
- 31
5
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1
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290
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Any thoughts on a supercapacitor battery project?
Just some insight: I am fifteen and have been researching capacitors for a while now.
I have come up with the idea of building a supercapacitor power supply unit solely to power some small electronics ...
1
vote
2
answers
385
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Powering ESP32 and two MG90S using supercapacitor
I'm working on a drone-dart project.
Dart is controlled by an ESP32CAM and two MG90S servo motors. It is raised to the sky by a drone and then released. The dart falls while attempting to aim itself ...
- 115
0
votes
0
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56
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NiCd vs supercapacitor in high-current discharge
I'm going to build a drone project (no lead batteries) that will only run for 1-2 minutes, but probably at low temperatures (30C-60C C-rate and sometimes -20°C,) so I will need a nickel-cadmium ...
- 21
0
votes
1
answer
188
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Latching solenoid supply circuit / control
I have done DC motor control with an H-bridge circuit before. I used a 3.6 V, 9000 mAh (ERC26500) battery and had no problems.
Now I want to use a latching solenoid and I need 7.2 V for that, so I ...
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9
votes
4
answers
6k
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Using capacitors as a battery back-up
I have a device which is operated from a 12 VDC 10 A power supply and draws 8 A in operation.
I need to run this device for at least 20 seconds when the 12 V power supply is lost upon a power failure. ...
- 99
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votes
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35
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How to interpret the “surface power density” of a battery/capacitor
I’ve come across this research and one point of representing a power output confuses me:
This enzymatic fuel cell is based on non-immobilized enzymes that exhibit a maximum power output of 0.8 mW cm−...
- 11
0
votes
2
answers
309
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Building a hybrid ultra-capacitor and battery bank
I have a project that I need input on.
Is it possible to build a hybrid bank out of ultra-capacitors (UC) and batteries?
The generalized flow of the system I'm thinking is from solar (48V) to UCs (48V,...
- 17
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votes
0
answers
184
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Battery options for 500mA load
I need to energize a load with 500mA current for 10 seconds. Voltage doesn't needs to be constant but can be in between 0.1v to 1v. The application has size constraints so I can only use a button cell ...
- 1
0
votes
1
answer
184
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How to raise capacitor voltage to use a capacitor bank as a battery?
This is a highly theoretical question.
There are these 100kF, 2.7V capacitors you can buy online. According to my calculations, 5 of them in series would give me the energy capacity close to a 44Ah, ...
- 257
1
vote
2
answers
908
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Seamless switch to-from batteries with relay involved
I seem to have the same issue 'Ali One' asked about a few years ago
(How to create automatic dual battery changeover/switching circuit for uninterruptible power?), except I have a twist that a relay ...
- 11
0
votes
0
answers
327
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Powering a RF circuit with CR2032 along a capacitor, pulse currents of 150mA
I am designing a battery powered circuit which performs RF communication. The goal is to use a 3V CR2032 battery. The RF circuit consumes 0.2mA as average current and lowest voltage it can work on is ...
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