Razr Schematic I found Razr chargers and Razr batteries on ebay, $1 each. Would like to use the mini usb charger output to remotely charge the batteries outside the phone. Do you have schematic for stand alone battery chargers, or other ideas? Thanks, Jerry

If using the supplied / original BLACK and WHITE USB cord, the black must be used for charging. The white is for data transfer only and lacks connections for power / charging.

Most USB chargers will output 1 amp or less. Many USB jacks on computers output between .5 and 1 amp - max. Your device calls for a charger with 2 amps output. Connecting to devices such as those mentioned above can overload and damage the charger or computer - don't use them!

USB ports have standard connections or "pinouts". You should obtain a USB charger (5V DC) rated for 2 amps (or more for better performance). Be sure to select one with matching USB connector (compatible with your device) - mini, micro, etc.

Amazon has several from which to choose:

Amazon com nabi2 nv7a charger

Hi,

Do you mean that the player turns on and then off when plugged in the charger?

you can charge it from your computer if you have a mini usb cable like one from a camera would work. Also if you have an old cell phone charger that has the mini usb connector on the end will work. The motorola driod x charger would be a perfect match. If you need to replace the battery because the remote will not turn on any more I replace the batteries on ebay search viper 7752 remote battery service. Hopefully this helps.

Try an Antec charger with an adjustable votage output. I tried a new battery, charger, BIOS udate, etc, etc, etc. After fighting it for about 2 months, I found the Antec at Best Buy. Took it home, plugged it in, slid the adjuster up till the "charge" light came on. Been working fine for about 6 months.

Hi Trevor
From what you describe it sounds like you just need a mini USB type charger, readily available off ebay, heres one for instance http://cgi.ebay.co.uk/HTC-Mobile-Phone-New-Mini-USB-Mains-House-Charger_W0QQitemZ350254239595QQcmdZViewItemQQptZUK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers?hash=item518cc78f6b.
There are also USB to mini USB chargers available and in car too, all 5v output.
Hope that helps you.
Seadsons greetings to you
Bob

the razr has multiple issues with charging...

the mini usb port for charging often breaks, does your charger feel loose?

the software sometimes gets worn out, it would help to know which software version you were on... you can check to see if you are on the most current s/w version with your provider (this could potentially fix issues if your phone is saying "invalid charger" or "unauthorized charger")

is your battery swollen? does it feel pudgy? test your battery by taking it out and putting it on a table flat and trying to spin it. if the battery spins easily, then it is no longer good.

also, most lithium-ion batteries only have a shelf life of about 365 charges. it will tell you the date of make on the battery, check it out. most batteries give you a one year warranty... each time you plug your phone in, it counts as a charge, so you should wait for your phone to only have one battery bar left (but do not let it die completely, cause this causes the battery's life to run out faster)

sometimes, rarely, but sometimes, the charger itself is bad. ask a friend to try theirs, or try your car charger. see if it works then.

good luck!

Your charger is faulty. If your phone is able to charge off of other sources (computer, car charger, another wall charger) Then, the charger needs to be replaced. Some mobile companies have a 90 warranty on accessories like the charger and battery. Then the mobile manufacture (Motorola) has a 1 year warranty on the charge and battery. I would check on that, and get those replaced.

check your cigarette lighter, it may have a blown fuse , check to make sure its not the problem.

Make sure you have an original OEM charger for the MDA. Many of the knock off chargers don't provide the right amperage for the device. What happens is that since the phone is completely dead, it can't regulate how many amps the battery should get during the charge and an incorrect charge current won't charge the battery. I'm guessing that someone sold you a Motorola RAZR charger or another knockoff made for the RAZR. This might charge your phone when the battery is working, but not when it's DEAD. Also you won't have luck plugging it into a computer USB cable because, again, the phone can't tell the computer what charge to send and most computers only produce <0.5 amps in the USB port.

Get a charger that states it is an OEM (original eqipment manufacturer) device or one that is specifically designed for the MDA (or Cingular 8125). eBay is full of them.

Bad charger (probably won't work for a dead battery)

Good Charger (correct amperage and designated for the MDA)