hi

I have used my mavic today for the first time it drained my i phone 6  flat meaning i had no phone i still had 30 % battery on the mavic yet my phone was dead
is this normal ...whats the piont in having two batterys for the mavic when I only get 20 minutes out of my phone ?

Doesn’t sound normal. Which port are you using? Side or bottom. If you’re using the side port try using the bottom one. See if that helps.

Sounds like you need a new phone battery to me. If you were an early adopter the the 6- it came out in 2014- The battery is technically 4yrs old give or take. I guess though it's easier to blame the Mavic for your phone issue.......It is new and such.

I can get four back-to-back flights with my iPhone 7+ using my MPP (over 1.5 hours in the air on one mobile charge) and six with the RC. You need a new mobile battery or mobile phone.

With my 7+ more or less 20% battery for 3 flights

Also try turning off some of the background crap that you don't need along with Bluetooth

my phone works fine all day i can stream music via bluetooth wifi use the maps apps .. eat power as location services is in use , all the apps are closed down I used the side port to connect ..the charge i con appears for a second then disappears. I have also tried to use the bottom usb port connected to a known good cable.

blue tooth kills battery fast - always ensure thats off. Maybe turn mobile data off and ensure also wifi is turned off - if yr phone is doing automatic updates of apps this will increase battery depletion speed. Also check out the recent apple reply to underperfoming older phones - this could be a contributing factor to your unique situation,   https://www.apple.com/iphone-battery-and-performance/

As well as turning off your Wi-fi and Bluetooth, also reduce the screen brightness ... amazing how much this drains batteries. Something I do whenever I get a new phone is to turn the brightness to 50%.

Definitely phone battery.   To make matters worse, If you're using the side port on the RC for phone connection,  the RC will actually provide a supplemental charge for the the phone.  All the above recommendations are appropriate for safe flying regardless of phone battery - shut off background programs, turn off any RF-emitting services (i.e Bluetooth, WIFI, put phone in Airplane mode).  These steps will also help reduce disconnects.

why would the phone show its charging via the side port then the charge icon disappears after one second  ? i was under the rc pads charges the phone via lighten cab when in use

Which version of IOS are you on?  

Make sure your phone is in airplane mode with low enough luminosity

Dji have comfirned that the controllers can't charge apple products