Powering 12v led strip from 16v dc
The easiest way, then, is to find out how much current the LED strip draws with 12 volts across it, and then to connect 7 silicon (not Schottky) diodes rated for that current or greater (greater is better) in series with the LED strip and the LIPO.

Depending on how much current they have to handle, they could get pretty warm, so you might want to place them somewhere where air can blow over them to cool them. 

If you use 1N4001 or 1N4002 diodes, figure about a 0.8 volt drop each with 750mA through them, so you'll need about 5 or 6 in series between the LIPO and the LED strip, like this:

       +--[DIODE&gt;]--[DIODE&gt;]--[DIODE&gt;]--[DIODE&gt;]--[DIODE&gt;]--[DIODE&gt;]--+
      +|                                                              |+
    [LIPO]                                                       [LED STRIP]  
       |                                                              |
       +--------------------------------------------------------------+