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Topic starter
2019-09-02 7:58 am
I had made a powerbank for around 1,55$.I used 3 3A fuses,3 10 ohm resistors ,power bank module and a lot of electrical tape.The enclosure is made out of wood.The electronic part is very easy because is all modular.
2019-09-02 8:19 am
If I understand correctly you are using 3 pairs of parallel cells. Why the 10 R resistors?. I also do not understand the placement of the 3A fuses in the schematic. They seem to be shorting the cells.
hj
hj
2019-09-02 8:49 am
I also do not understand the placement of the 3A fuses in the schematic. They seem to be shorting the cells.
I don't think the fuses are shorting the cells. But they do seem to be only protecting half of the batteries.
Shouldn't the fuses be in series with the 10 ohm resistors?
DroneBot Workshop Robotics Engineer
James
wintech reacted
Topic starter
2019-09-03 4:58 pm
Well I've messed up the diagram.The 3 resistors should connect to the + terminal like that:Battery pack 1 to battery pack 2 ,battery pack 3 to battery pack 2 and battery pack 1 to battery pack 3.
Topic starter
2019-09-06 5:38 pm
Here is the updated schematic.
2019-09-06 8:24 pm
Swing and a miss. Strike 2. ?
Not sure what your doing with the resistors now.
Pat
The most exciting phrase to hear in science, the one that heralds new discoveries, is not “Eureka!” (I found it!) but “That's funny …”
Author: Isaac Asimov
2019-09-06 8:42 pm
The fuses look better. But I don't understand the purpose of the resistors now. In fact, aren't all of those resisters basically shorted out directly by the top most wire in your diagram?
I mean, based on how it appears the resistors won't hurt anything being there, but it also appears that if you take them out it won't make any difference at all.
Can you explain the purpose of these resistors? What are they supposed to be doing?
Here's what I'm seeing:
DroneBot Workshop Robotics Engineer
James