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A lot of new computer hardware will accept regular 110-115v like most people have in their homes (USA) or high voltage 220 (mostly used for washer / dryers) or industrial use. Like in a factory. This unit accept both without worries of over loading. Some may even have a switch to swap back and forth. It actually only uses 5v and 2amps. Meaning a single 110-115 power strip can handle many plugs, because of the low voltage.
Hi. I just bought an in-car charger for the 7211 on ebay. It is 5v with a 2amp flow. It's not for the mini-USB port on the side but for the dc input hole on the other side. I've just plugged it into my laptop via the mini-USB port to see if it will charge that way but it doesn't seem to be doing. Hope this helps.
Hi Dear, well, you can get 1v dc or 1.5v dc from any pc motherboard but I'll never recommend you to do that. You can use Black and Red wire combination to get 5v dc or Black and Yellow wire combination to get 12v dc from motherboard's power supply. 3 LEDs in series can b use for 5v dc input.
The power cable connector to the drive has 1 red (5v DC), 1 yellow (12v DC) and 2 black (common center or negative) wires feeding the required voltages from the main power supply source. The power connector will only go on one way. I hope this helps.
Batteries get old and wear out. Be use AC outlet is working. Check for power light on AC/DC charger box between laptop and AC.
It is common for Laptop charging/power connectors to get worn and/or loose(intermittent). Try to get charging light on PC by wiggling power connection to PC.
If not, if you have a VoltOhmMeter(VOM). check for 5V on barrel power connector on the charger side, that plugs into PC, Outside conductor is GND and Inner connector is (+5V). VOMs are cheap at RadioShack or AutoParts stores and are a handy tool to have around the house. Book shows you how to measure. PC is 120V AC on Wall side of PC Power Supply from Wall Outlet, and 5V DC on PC side of Charger.
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