Review: Happymodel Mobula7 1S BNF Whoop

by Oscar
Happymodel Mobula7 1s Bnf Tiny Whoop

We all love the Mobula6 because it’s so damn fun to fly. But what if I tell you there might be something even better? Let’s check out the new Happymodel Mobula7 1S Tiny Whoop.

Check out my buyer’s guide for the best Tiny Whoop and accessories.

Where to Buy?

Unlike many other whoops from Happymodel, the Mobula7 1S doesn’t come with LiPo batteries, so you need to get your own. These 1S 450mAh packs work great and fit well in the battery bay.

Get GNB 1S 450mAh

Get EMAX 1S 450mAh

Also a good idea to grab some spare propellers

Happymodel Mobula7 1s Bnf Tiny Whoop Unbox Accessories PartsInside the box, you get the following accessories:

  • 1S LiPo series charging board
  • 1 set of spare propellers
  • spare screws
  • spare canopy
  • screwdriver
  • prop removal tool
  • manual
  • stickers

Key Features and Specs

The Mobula7 is like the Mobula6 in a bigger platform.

Happymodel Mobula7 1s Bnf Tiny Whoop Mobula6 Size Compare

Left: Mobula7; Right Mobula6

Instead of 31mm props, they put 40mm props on the Mobula7. The increased disk area makes it more efficient and powerful at the same time. There are also some other improvements and new features too.

  • X12 5-IN-1 AIO flight controller w/ built-in 2.4GHz ELRS (V2.0)and OpenVTX (400mW)
  • New motors! RS0802 20000KV Uni-bell Motors with 1.5mm motor shaft
  • RunCam Nano 3 – the lightest 1/3 CMOS 800TVL camera available
  • Compatible with 1S Lipo (4.20V) and LiHV (4.35V)

Happymodel Mobula7 1s Bnf Tiny Whoop Front

Specifications:

  • Input Voltage: 1S LiPo
  • Max Continuous Current: 12A
  • Motors: 0802 20000KV
  • Camera: RunCam Nano 3
  • Wheelbase: 75mm
  • Dimensions: 99x99x40mm
  • Weight without battery: 24.1g
  • Weight with Emax 1S 450mah: 36.9g

Closer Look at the Mobula7

Frame and Canopy

The frame looks to be the mobula7 V4 frame which they used in the Moblite7 before. It’s a tried and tested frame that has been refined over the years, very durable almost indestructible.

The Canopy has been redesigned, it’s probably one of the lightest canopies I have seen in all the whoops I reviewed, weighing in at only 0.8g. Besides, it’s using all four mounting points, making it sturdy and not wobbling around which will help with avoiding jello in video. There’s also a piece of foam underneath the camera to further help with jello and protection.

Happymodel Mobula7 1s Bnf Tiny Whoop Fpv Camera Canopy

Happymodel Mobula7 1s Bnf Tiny Whoop Frame Bottom

Flight Controller

The Mobula7 1S whoop is using Happymodel’s X12 AIO 5in1 FC (with 12A BLHeli_S ESC built-in). Initially, they didn’t sell this FC separately unless you get the Mobula6 or Mobula7, but now they do which makes it possible to replace it if it gets damaged.

FC, ESC, VTX, RX, OSD all integrated into one single board! How compact is this?! It even has a current sensor!

Happymodel Mobula7 1s Bnf Tiny Whoop Flight Controller Happymodel X12 Aio Fc 12a Esc

The X12 AIO FC has ExpressLRS (ELRS) receiver built-in. ELRS offers ultra low latency (up to 500Hz update rate), and range is no longer a concern, your video signal will most likely to give up first before you lose radio signal. Another benefit of ELRS is the tiny little ceramic tower antenna (just under the canopy), no more worry about antenna wire getting in the way of spinning propellers.

Note that the ELRS receiver is connected via SPI instead of regular UART, while this is more compact and doesn’t take up a UART, this comes with a downside. By integrating the RX into the FC, the ExpressLRS code needs to be merged into the flight controller firmware, so you need to flash Betaflight in order to update the receiver firmware. But you don’t really need to update receiver firmware that often unless there’s a new feature or bug fix you really want. As long as both of your TX module and RX are on the same major version, they should just work fine.

Happymodel Mobula7 1s Bnf Tiny Whoop Canopy Elrs Rx Antenna

Motor and Propeller

Happymodel Mobula7 1s Bnf Tiny Whoop 0802 20000kv Motor Prop

These are the same motor size (0802) and similar KV (20,000 vs 19,000) as the Mobula6, the new motors RS0802 on the Mobula7 uses larger 1.5mm motor shaft which is fantastic. Normally these 1S whoop motors use 1mm shaft and they can break even when you just trying to change props.

The props are Gemfan 1610 two-blade. This motor-prop combo has a lot more power than the mobula6 setup, it can manage to carry a bigger battery without compromising power.

Battery and Charging

The battery connector is a solid pin PH2.0, for this setup this is good enough. Perhaps not much, but I think you can still get a bit more power and flight time out of this whoop by using BT2.0 if that’s the type of connector you prefer.

I recommend using 1S 450mAh LiPo batteries as the tune is based on this specific battery weight, if you use something else it might mess up the tune. Not to mention the battery holder is catered for this very specific battery size too. If it’s loose just wrap a rubber band around the frame.

Happymodel Mobula7 1s Bnf Tiny Whoop 450mah Lipo Battery

It comes with a series charging board which I absolutely love. Yes, it requires a LiPo charger to use it, and you can’t just plug it into a USB charger, but it’s much faster and easy to use.

Looking for a LiPo charger? Check out my recommendations.

Note that this is NOT a parallel charging board, it’s a series charging board. For example, when you connect 4x 1S 450mAh LiPo to this board, it becomes a 4S 450mAh LiPo! It doesn’t combine the capacity like a parallel charging board does. The benefit is that it doesn’t care what the voltage of the batteries is when you plug them in, they will all get “balanced” during charging.

Happymodel Mobula7 1s Bnf Tiny Whoop Series Charging Board

You can charge up to four LiPo at the same time, just remember to move the jumper according to the number of packs you are charging.

Happymodel Mobula7 1s Bnf Tiny Whoop Series Charging Board Charger

Flying Experience

I heard so many good things about the Hapypmodel Mobula7 1S whoop, it’s one of the reasons I decided to give it a try. And I can confirm it’s just as good as what everybody says about it.

The PID tune is really good out of the box. It’s one of the best 75mm whoops I have ever flown. I think I enjoy the Mobula7 more than the Moblite7 – not only the overall specs are just better and it’s more robust, I don’t need to “fix” the camera angle every time it crashes.

Thanks to the 400mW VTX and ExpressLRS receiver, I am able to fly around the whole house without any signal issue.

The Mobula7 has a lot more power than the Mobula6 and can go faster in straight line. Because it carries more weight, it tends to “drift” around corners and doesn’t feel as precise as the Mobula6. But with practice I think that’s something you can get used to.

The efficiency is decent, I get over 5-6 minutes of flight time on a 1S 450mAh, and it actually got some serious punch too when flying outdoor when it’s not too windy.

It’s slightly louder than a 65mm whoop because of the two-blade props and being a bigger, more powerful whoop after all.

Setup

The manual is really helpful when I was setting up the whoop. There are only a few things I have to do to get my Mobula7 off the ground.

Happymodel Mobula7 1s Bnf Tiny Whoop Manual

The Mobula7 came loaded with Betaflight 4.3.0. The firmware target is: HAMO/CRAZYBEEF4SX1280

Here’s the original CLI dump.

I just had to bind the ELRS RX to my radio (plug in battery and unplug, repeat it for 3 times to enter bind mode). Then setup switches in the Modes tab for arming and angle mode, rearrange the OSD, and we are in business.

The other thing I will do when I have time is to flash Bluejay firmware to the ESC, it allows the ESC to run at higher RPM frequency for better efficiency and enable RPM filter for better flight performance.

Happy flying.

Mobula6 or Mobula7?

Between the two I’d get the Mobula7 because:

  • ELRS support
  • More powerful 400mW VTX
  • More powerful and longer flight time
  • Better motors

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8 comments

Brian 21st June 2022 - 3:00 am

Hi Oscar,
I ordered Mobula 7 elrs but I haven’t ordered 1s lipo yet. I’m planning to order gnb 1s 530 mah, does it fit the battery holder? or the 450 mah is the ideal batt for the drone in terms of flight time and others

Reply
Oscar 21st June 2022 - 6:50 pm

I think they might be thinner than the 450mah? If the dimension is true they should fit but might be a bit loose, just wrap around the frame with a rubber band, that should hold well.

Reply
Philipp S. 17th June 2022 - 7:37 am

Hello Oscar,
I recently bought the Mobula7 with ELRS built-in. It was super fun to fly.
After disassembling the canopy just out of curiosity and then reassembling it, my Mobula7 is no longer flyable. As soon as I hit the ARM-Switch it begins to jump up and down and it sounds like extreme oscillations as a result of excessive gyro noise. Whenever I disassemble the canopy incl. Camera, it just flies perfectly fine again.

Do you have any Ideas onto why this happens when I put the canopy back on? Might be the vibration of the Canopy interfering with my gyro? I’ve put the foam right back where was too, directly under the camera.

Thanks in advance and greetings from germany!

Reply
Carlos 2nd June 2022 - 8:24 pm

Hello
I just got the Mobula7 1s can you tell me how to update the firmware of the elrs? What target should I use?
And how to install the bluejay firmware on the Mobula7 1s….
Thanks

Reply
Israel 17th June 2022 - 3:44 pm

The elrs receiver in the Mobula7 is a SPI receiver, hence it’s not configurable with the ELRS Configurator, the firmware for the receiver it’s embedded in the Betaflight firmware, so if you have the latest Betaflight firmware you have the last Elrs firmware.

Reply
Riza Guntur Prakoso 25th May 2022 - 12:21 pm

Hello Oscar,

I need your help, so Mobula7 1S ELRS is my first FPV Drone, it arrived like 3 hours ago. I had it connected to Betaflight and because of wrong radio setup, I reset the Betaflight configuration (because I didn’t know what to do. Then the drone won’t arm and react then I tried to follow all settings in the manual paper. My question: How to use your CLI dump? I feel some options still missing because right now the motors won’t spin when armed. I want to revert the options to original.

Thank you for your help.

Reply
Oscar 25th May 2022 - 1:47 pm

First of all, go to the first page in Betaflight Configurator, and find the button where it says Reset Settings.
Then copy the CLI dump I provided, paste it in the CLI tab in Betaflight configurator. Finally, enter “save”.

Now your Mobula7 should be back to its original settings as you received it.

Reply
TJ 21st May 2022 - 1:49 am

The first charging board HM sent out didn’t have the jumper and I was disappointed to find out that the new ones have it. Oh well, that’s what I get for ordering one asap ha.

Reply