(thank to Willkhlau) I have found and tested this wonderfull lipo battery:
HRB 7.4 V 2200 MAH 30C lipo battery EC2
It lasted long about 20 minutes, with 17:52 minutes of videorecording and about 1 minutes of calibration, gps fixing and other tweaking and test (follow me).
The battery is very stable, without any voltage peak (like the original one) and TX, now, shows real voltage; I landed at 6,8v and lipotester showed 6.9v.
THIS IS THE BATTERY
FOR EVERYBODY IS INTERESTED ON THIS BATTERY, I HAVE TAKE SOME AGREEMENT WITH THE SELLER TO GET 5% OF PRICE REDUCTION .
Write me an email to get instrucion and VIP CODE to get discount.
I have also tested new pigtail, to replace the defective original one
and replaced the stock antenna with this one:
before modding, My H501S was able to reach at its best 150 meters far away, now, after modding, more and more.
This is my configuration:
TX PRO = v. 1.1.3
RX = v. 1.2.12
FC = v. 1.1.22
If you are looking for HUBSAN H501S, original and spare parts and optional,
you can get them here: