I have been testing the Kentli rechargeable batteries for use in our XD-v70 wireless microphones.  We were throwing away batteries when they got down to 3 hours and it just seemed wasteful.  I was wondering if anyone else has tried these batteries and what their results were.  They are available from Amazon.  These are Lithium-ion batteries that must have a voltage regulator in them to supply the normal 1.5 volts.  I just recharge them when the microphone shows a drop in the amount of time left.  Due to the voltage regulator, I believe that they would provide the full 1.5 volts until they are almost dead.
 
	 
 
	Any thoughts?