So I recently bought and put some flights on a new TH3+ freestyle, and I already had one battery failure.  Doing some surgery on the battery (EMAX 650 PH2 plug) showed a burn through on the battery terminal pad.  As I have a mess of BT2 batteries for my Meteor75Pro I was thinking of replicating the TH3+f PH2 double plug with that capacitor into a BT2 one.

Has anyone done this already?  What is the purpose of the capacitor?  A visual inspection of the plugs and circuit board seems to have the batteries in series, with the capacitor in parallel to the two batteries - so is the capacitor a brownout prevention?

As I'm fairly recent flying drones, I'm still flying mostly LOS and there was a post somewhere in these forums that you can get flight battery voltage telemetry - is this done through Betaflight on the quad? or on the controller?(Radiomaster Pocket ELRS version).

Any help on these subjects is greatly appreciated.

CDC

Just solder a xt-30 . It will allow u more selections of batteries and charging options are also better

(13-Apr-2024, 11:21 PM)Rob Axel Wrote: Just solder a xt-30 . It will allow u more selections of batteries and charging options are also better

I thought of doing so to be able to use the old ph2 plugs and to adapt to bt2 plugs - I like the option to use 1s or 2 1s batteries.  the xt30 would also allow an adaption to 2s batteries.  But again, IDK if the capacitor is necessary.

Trust me, 1s on that rig will get old FAST.. and so will 2s and WHEN you toast that fc.. upgrade to one that will handle 3s… that is where you want to eventually be..
But 2s on xt-30 will be your best bet.. if it’s to much power use some throttle expo

Rob A is right - flying the TH3 on 1s got stale pretty quickly.  I'm still using the 2 1s battery rig with xt30 adapter connector as I have a mess of 1s batteries for my Meteor75Pro.

I'm running the Tinyhawk Freestyle 2 and yes 1s gets old real fast. I too soldered on an xt30 connector and left the dual 1s connector as well until all my 1s bats were no good any more then took the dual off. I'm running 2s 450mah on mine now but also STILL running the original fc.