Old Chargers and Cables
Nov 26, 2022 11:42:13 #
Drbobcameraguy wrote:
All the charger specs are listed on the charger. It's not rocket science if you are familiar and a retired electrical engineer. Lol.
Including charging rate information? Or just "total output capability" (X-ma at Y-volts)......
Nov 26, 2022 11:50:52 #
BebuLamar wrote:
Really?
Yes current and voltage is all the small phone charger does. The cut off and step down is part of the device you are charging for the new stuff. Car or bigger battery chargers or chargers that charge a battery out of the device are not that way. The charger controls current and time. There are basically 3 types of automotive batteries. Reg, gel, and mat. Each type must be charged differently. I have a fancy charger for those. Lol.
Nov 26, 2022 11:51:13 #
insulator
Loc: JASPER, ALABAMA
Our scrap yard will buy copper I have burned becaust I have a business license in home building.
Nov 26, 2022 11:56:53 #
Drbobcameraguy wrote:
Yes current and voltage is all the small phone charger does. The cut off and step down is part of the device you are charging for the new stuff. Car or bigger battery chargers or chargers that charge a battery out of the device are not that way. The charger controls current and time. There are basically 3 types of automotive batteries. Reg, gel, and mat. Each type must be charged differently. I have a fancy charger for those. Lol.
I often need to charge battery without the BMS built in. I don't just use a power supply to charge them.
Nov 26, 2022 12:11:34 #
I should have worded this differently. The article used the terms "chargers and cables," but it also meant the transformers that power most electronics these days. Transformers and chargers are different, obviously. Those little "wall warts" can be used for various devices if the specs are right.
Nov 26, 2022 12:45:25 #
jerryc41 wrote:
I should have worded this differently. The article used the terms "chargers and cables," but it also meant the transformers that power most electronics these days. Transformers and chargers are different, obviously. Those little "wall warts" can be used for various devices if the specs are right.
But the best way to dispose of them is still to give them to me Jerry. I cut the connector off because that's most of time what's wrong with it. Then I solder in a new connector. Perhaps not the same one but one fit the device I want to use it for.
Nov 26, 2022 13:11:20 #
BebuLamar wrote:
I often need to charge battery without the BMS built in. I don't just use a power supply to charge them.
No power supplies are Not battery chargers. Most hand held electronics have the regulation built in but as I stated above batteries by themselves require a true charger with a draw circuit. I have a great battery charger for 6 and 12 volt batteries. Gel,deep cycle mat and regular. I bought it from nac tools on sale of course. Lol. It also has a battery maintainer that discharges the battery and then recharges it for long term storage
Nov 26, 2022 13:34:05 #
jerryc41 wrote:
I should have worded this differently. The article used the terms "chargers and cables," but it also meant the transformers that power most electronics these days. Transformers and chargers are different, obviously. Those little "wall warts" can be used for various devices if the specs are right.
Nov 26, 2022 13:36:05 #
Drbobcameraguy wrote:
No power supplies are Not battery chargers. Most hand held electronics have the regulation built in but as I stated above batteries by themselves require a true charger with a draw circuit. I have a great battery charger for 6 and 12 volt batteries. Gel,deep cycle mat and regular. I bought it from nac tools on sale of course. Lol. It also has a battery maintainer that discharges the battery and then recharges it for long term storage
And some have the regulator circuitry built into the wall unit with the transformer...
Nov 27, 2022 07:03:26 #
Nov 27, 2022 07:25:02 #
Nov 27, 2022 07:52:49 #
Longshadow wrote:
And some have the regulator circuitry built into the wall unit with the transformer...
But few of the walwarts today have transformer, they are mostly switching converter. They do have some inductor coil to smooth out the voltage but no transformer.
Nov 27, 2022 08:27:40 #
BebuLamar wrote:
But few of the walwarts today have transformer, they are mostly switching converter. They do have some inductor coil to smooth out the voltage but no transformer.
Yes, one can mostly tell by the weight.
But, it can be a very small transformer.
I have one that seems to weigh upwards of a pound.
(I never needed to take one apart yet. But I'll bet some are designed well, others VERY cheaply.)
Nov 27, 2022 08:32:05 #
Longshadow wrote:
Yes, one can mostly tell by the weight.
But, it can be a very small transformer.
I have one that seems to weigh upwards of a pound.
(I never needed to take one apart yet.)
But, it can be a very small transformer.
I have one that seems to weigh upwards of a pound.
(I never needed to take one apart yet.)
If you watch bigclivedotcom on YouTube, you know that many electronics from China are downright dangerous.
https://www.youtube.com/results?search_query=big+clive
Nov 27, 2022 08:38:33 #
jerryc41 wrote:
If you watch bigclivedotcom on YouTube, you know that many electronics from China are downright dangerous.
https://www.youtube.com/results?search_query=big+clive
https://www.youtube.com/results?search_query=big+clive
It would not surprise me in the slightest.
One can use two resistors to reduce 120 volts to 5 volts, a single diode to change it to DC (half wave).
Filtered? That will require at least one capacitor.
Regulated? Hahahaha.
Absolute minimum component count: 3
POUF factor: VERY, VERY HIGH!
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