I am about to switch all my batteries to LiPol in my plane...

This will require 2 x 2S with 2 x voltage regulators and two switches
along with a 3S pack for the ECU...

I don't want to have 2S batteries and a 3S battery in the same plane
because I could easily charge one incorrectly...

So.... I want to put 2 x 3S packs only... From the 3S (12v) I want
to put 2 x voltage regulators to 5.1... but then power the ECU
by (12v) or 3S directly..

I know the ECU can run on 12 volts but recently I plugged a minihobbies
Voltage regulator into 12 volts and well.... uh.... It exploded and
shot smoke all over the shop.....

Does anyone have any advise or can anyone tell my why I should
not do what I am trying to do.. ?

Eddie Weeks