Specifications

Do I need one for each battery?
No. Since the LVC is connected between the rx and esc, you can only plug in one lvc device
anyway; using a servo Y-harness to connect both lvcs to the rx will cause serious issues. Mainly,
whichever lipo hits lvc point first will trigger the lvc to alter the throttle signal, but the lipo that
hasn’t hit lvc point will have it’s lvc trying to send a normal signal to the esc via the rx at the
same time; much potential for serious signal issues on the throttle channel resulting in an
uncontrollable truck.
What if there isn’t one for my voltage lipos?
Well, most escs operating in the 5s lipo and higher region will have built in LVCs, such as the
MGM and MMM models. However, occasionally you may want to use a separate lvc on your lipo,
but there isn’t one that goes high enough (most are 2-4s items). The solution here involves the
balance taps from your lipo. On a 6s lipo, there will be seven wires; one -, and 6 + (ordinarily,
but check with a digital multi meter). What you need to do is take a female balance tap
connector with wires attached, and locate the + wire that when combined with a specific – wire,
gives you the voltage of a 4s lipo (14.8v, or 16.8v fully charged). You then connect the + and
from the LVC to these two wires, and when the voltage of these cells drops below 12v for
example (3.0v per cell), the lvc will activate. Ofcourse, this isn’t 100% reliable as although it will
work, it does mean however that 2 of your cells are not being monitored, and if they happen to
be weaker than the ones that are being monitored, they could dip lower in voltage than the
others. The best solution is an LVC that monitors individual cell voltages, but these are few and
far between at the present time, although these items look promising:
MaxPro 1-6s voltage checker
http://www.hobbyhot.com/maxpro-6-cells-li-polymer-battery-monitor-c-209-p-1-pr-83.html
Quanum remote voltage checker for 1-6s lipo
http://www.rcgroups.com/forums/showthread.php?t=1267361