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| 48V automotive standard (Page 5/5) |
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maryjane
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MAR 20, 09:18 AM
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| quote | Originally posted by Patrick:
There are Jewish USB chargers?  Who knew!
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I think that went right over someone's head....but passed over ..............................Gentilly[This message has been edited by maryjane (edited 03-20-2023).]
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theogre
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MAR 20, 12:23 PM
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| quote | Originally posted by cliffw:
My next stupid questions.
Does the charging adapter wear out if it remains plugged in, not charging ?
I have a charger / device, which has a magnetic connection. It gets 'attached' to the side of my desktop tower. Does it hurt anything ? |
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1 is eats power just plug in. Most Near same power when charging whatever.
+ can "wear out" the wall wart too. Most aren't made to take power surges and other problems with AC into them.
That's assume Known Brands... If buy a charger thru Amazon etc from China and other countries that sell huge amounts of Dodgy Chargers that can kill whatever, cause fires or electrocute you.
Magnetic connection? For desktops? Seen that done to Laptops and other things. Even Some Kitchen stuff have them so whatever hits/pulls a cord then cord "falls off" w/o spilling hot food or grease.
Main problem w/ these are dirty etc on connections.
Magnets can go weak to 0 power expose to AC but how bad etc depends on magnet type and how a device is made.[This message has been edited by theogre (edited 03-20-2023).]
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Patrick
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MAR 20, 03:08 PM
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| quote | Originally posted by maryjane:
I think that went right over someone's head....but passed over ..............................Gentilly
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jdv
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MAR 22, 07:43 AM
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maryjane
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MAR 22, 08:32 AM
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Be more realistic if they used rechargeable AA batteries.....
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theogre
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MAR 23, 07:19 AM
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| quote | Originally posted by maryjane:
Be more realistic if they used rechargeable AA batteries..... |
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Actually that would need more of them and cause more headaches. NiMH @ full charge = ~ 1.5v per cell but drop to 1.2 fast for nominal 1.2v battery.
vs Alkaline Cell start starts 1.7+ for 1.5v battery and doesn't drop as fast either.
Is why many things made to take Alkaline batteries like CD Players don't run long w/ NiCD or NiMH.
Many w/ Battery Displays for Alkaline say battery @ best is 3/4 charge using either rechargeable types.
Is part of why Rayovac (Well Before take over by Duracell) made Renewal Rechargeable Alkaline batteries many years ago.
I use them w/ Sony CD Player that need 4 AA cells to run about 12 hrs.
Didn't cycle as many times as NiCD but way cheaper then that or one use Alkaline after ~ 3 cycles.
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theogre
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MAR 25, 05:58 PM
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More back to the Topic...
A short video showing what I said above about switches and relays...
They made a "Test Switch" w/ Same volts AC vs DC on same Resistive Load.
Then actual products that look same to many but wired way different to handle 240v 10a DC and 20a 3 phase AC.
Even with the changes, these switches are Not made to turn on/off often. More so for the DC version.
"The Jaw-Dropping Difference Between AC & DC Isolators!"
https://www.youtube.com/watch?v=YxHCDs03UEg
I forgot to add... I had an old car w/ HL Dimmer on the floor...
As often does fails because of any crap, road salt on shoe gets into the switch...
I tried to replace the heavy switch w/ something else to move it.
New switches was rated 10a to 20a 120vac but all still burned up trying to handle 12v 2 HL setup.
OE Fiero and many other HL main and beam switches can fail too. More so w/ people using high watt HL bulbs.
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