i'm looking for a minium (but safe) battery voltage settings for the S900. I currently have it set at 21.65 when it will start going home and auto land. Could I go any lower ? or is this about right?

I have mine set at 21.1. You could try this but make sure you watch how much you put back into the pack.

Blade_Strike Posted at 2014-11-20 03:58
I have mine set at 21.1. You could try this but make sure you watch how much you put back into the p ...

thanks for your help!

Depends on the battery you use. I need to land at about 21.5v in order to have used only 80% of the battery. I think my cheap multistar batteries I am using have more sag then the TBM batteries Blade is using.

Very true cg.. Sorry I should have explained a little more. Voltage is only part of the equation, you will also need to watch total mah put back into the pack. With these numbers you will get a general idea of the voltage you need to land at.

I need to remind myself with these bigger packs and different weight of setups, voltage will vary more.

minimum and good for your Lipo live will be 15-20% rest, i'm using an Fair 6S16000, i can recharge around 13000mAh,

please try and start flying in your Lipo 4-5 times and check what's your recharge.

3,5V minimum x6 = 21V for second level and 3,6V x6 = 21,8V for first level.

best results with heated Lipo's around 34-38°C (93-100°F)

i was looking for an 240-300 A battery backer, haven't found yet. I will develop one for my 800 and 900 including an 6S1500 reserve Lipo