Don't forget that USB is only 100mA until the device in question requests extra current. Some PCs will actually disconnect a device that violates this rule. I wonder if the Wiz actually does this properly, or just expects to suck as much as needed from the PC?Squirrel61 said:If it's got rechargeable batteries, it should come with some kind of charger. Some devices however only come with a USB charging cable. For a Wiz, charging the battery over USB at 500 mA max would take hours, so I expect it to come with an AC charger.
Thanks for the answers they helped alot!Squirrel61 said:It's always possible to use one of these AC to USB 5V adapters. Or a car lighter to USB 5V adapter. Since the invention of the portable MP3 player, many 5V power supplies with a USB port have become available.
I think one that did have a problem was an ASUS Terminator or something similar. It turned off the USB port and you had to reset the machine to get it back. The fun thing was that it wasn't that stable - if you plugged a harddrive in that tried to use well over 500mA, then the machine just reboot without warning.grahf said:Your right squidge. In my personal experience however, I've never come across a PC that abided by the 100mAh pre-handshake rule. I'm sure there are some out there, but I think this quietly died with usb 1.0.
Squidge said:... because the usb cable needs to be centre negative
I know what you mean But stupid as it is, there is a reason for the power plug on the 2x being centre negative. No, that's not for selling more consoles because people fried their 2x by using a universal AC adapter. And neither is it because GPH wants to sell more official AC adapters.
It's just because they use a stupid, cheap solution to switch from battery to external as soon as you plug in the adapter. For some reason they haven't thought of switching the GND line instead of +Vcc to keep the plug industry standard (= centre positive). And for some reason they haven't thought of incorporating a charging circuitry or some electronic switch, in which case they wouldn't have needed the stupid mechanical switch anyway.
The first time I plugged in the AC, I was highly surprised that the 2x rebooted, I hadn't expected that behaviour. From my laptop, PSP and NDS I got used to the fact that when the battery runs out, you just connect the AC and have a fair chance to save or end the game you're playing. But on the 2x, when the battery runs out, it's game over. Whether it runs flat or you plug in the AC, in both cases the 2x shuts down, killing the game. I can't think of what's worse when upgrading or downgrading the firmware, the battery runs out and bricks your 2x or there's a power surge on the AC and bricks your 2x.
Just my 2 cents on the current power matters, I seriously hope it will be better with the Wiz (it will because of the built-in battery).
The Wiz doesn't have a DC port, the only way to charge it is via the 24 pin connector which means you have to use GPH's USB cable, a Samsung Phone charger or GPH's official charger.geise69 said:Pardon me for being stupid after reading everything, but this can use the old gp2x AC charger as well as charging through USB?
WarmFluffyUK said:The Wiz doesn't have a DC port, the only way to charge it is via the 24 pin connector which means you have to use GPH's USB cable, a Samsung Phone charger or GPH's official charger.geise69 said:Pardon me for being stupid after reading everything, but this can use the old gp2x AC charger as well as charging through USB?
So GPH is doing an official AC adapter but with the 24 pin connection? Is it going to have the pal outlet connections like the GP2X one, so I will need the same pal/ntsc adapter? One last random question and I'll stop bugging. Does the Wiz have a power save feature where it will turn off the screen after a while if it's still on without any use? BTW thanks to everyone with a prototype for answering a lot of mine and others questions. I guess it's sort of a curse that comes with having prototypes.