Icona w3 usb power?
posted this in my intro- just bought an Icona W3 and love everything except not being able to charge is via a USB charging system. Hoped to be able to charge off either my charging strip or Solar battery pack for travel to avoid extra cords and adapters. Any suggestions?
Best Answer
-
Little or none. Only have one auto (55A) charger with a 6v setting anymore and unloaded it puts out 8.4vdc. Automobile chargers are often poorly regulated and rely on the battery being charged as a control (I only use "smart" or really small "float" chargers for AGM to limit peak voltage.).
Case I mentioned was for an antique radio that used 8 "D" cell batteries or a 12v 50ma wall wart. The warts I found were all larger and poorly controlled so I used a 9v supply that put out 11.4v at 50 ma and worked well for the need (I tend to derate old systems about 10% anyway).
This is why I would be concerned about connecting a W3 or W510 directly to an automotive cigarette lighter. Even a good system can go to 15v and some '14 model cars are plauged with much higher surgers frying electronics (suspect a bad ground. Don't know). Do wish Acer would release either a mobile 12v-12v charger or specs for one.
0
Answers
-
The issue is that the CT devices (W510, W3) require a 12v supply rather than the 5v available from USB chargers. I suspect that given the size of the batteries, a 5v charge might take days. See Tesla.
ps hopefully we will see some moble (cigarette lighter) power supplies in the near future, until then I use a 140W 12vDC>120Vac inverter and the normal power supply.
0 -
Padg
For future reference, a 5 volt charger cannot charge a 12 volt battery, ever.
Leho
0 -
Leho wrote:Padg
For future reference, a 5 volt charger cannot charge a 12 volt battery, ever.
Leho
But a 5V charger can *discharge* a 12V battery slower than a dead short.
Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.0 -
Oh I dunno, a 2000 ma uncontrolled 5v charger might provide a few ma at 12v, I commonly use 9v (rated) chargers on 12v radios.
Those early wall warts were little more than a transformer and a half wave bridge, not like the multivoltage switchers we have today.
That said what I meant was they couldn't use a 5v USB supply even if they wanted to. Didn't you notice the Tesla note ?
0 -
Padg
A rhetorical question. I do NOT recommend that anybody actually do this.
What expectation of consequences should one have when connecting a nominal 6 volt charger (without automatic voltage detection) to a nominal 12 volt automobile battery?
Leho
0 -
Little or none. Only have one auto (55A) charger with a 6v setting anymore and unloaded it puts out 8.4vdc. Automobile chargers are often poorly regulated and rely on the battery being charged as a control (I only use "smart" or really small "float" chargers for AGM to limit peak voltage.).
Case I mentioned was for an antique radio that used 8 "D" cell batteries or a 12v 50ma wall wart. The warts I found were all larger and poorly controlled so I used a 9v supply that put out 11.4v at 50 ma and worked well for the need (I tend to derate old systems about 10% anyway).
This is why I would be concerned about connecting a W3 or W510 directly to an automotive cigarette lighter. Even a good system can go to 15v and some '14 model cars are plauged with much higher surgers frying electronics (suspect a bad ground. Don't know). Do wish Acer would release either a mobile 12v-12v charger or specs for one.
0
