"unable to charge" message & person on other end cannot hear me

Either your battery is nearing the end of its useful life or your charger is not charging it. If you are two years old ... the end is near.

Check the contacts between phone and battery, if necessary align or clean. Are you using original Motorola charger? This solved my problem; I was trying to charge it with one of those "universal" chargers.

Hope this helps!

My v3 has done the same sometimes I couldn`t charge then taking it off charge it used to die.
Try a new battery.

Clean charging port, remove battery, clean contacts between battery and phone, also be sure to use an original Motorola charger instead of one of those "universal" type chargers.

sound like you need a new battery

this is minor problem . battery nu zatka (current) externally lagao .set thik ho jaouga..

Um, you might need to either buy a new charger, or its your phone.

buy another battery

when battery cannot charge, try another battery. If it is still cannot, then the problem is the charging port is not working. Need to replace it.

i have noticed that the mini plug for the charger and usb connection on RAZR V3 is sometimes sloppy. when the phone is charging it will definitely say battery charging on the external display and also flash the battery icon. i also noticed that the plug for the wall outlet is touchy.
make sure the plug is secure in the wall outlet
make sure the mini plug is secure in the phone
gently wiggle these connections if you have to till you get the battery charging message
if there are any connection problems there will be a unable to charge message instead.