Xiaomi scooters have long ceased to be just a means of entertainment - they have become a full-fledged transport for the city. M365, The Pro 2 or 4 Ultra can not only waste energy, but also put it back into the battery. This technology is called recovery, and it can increase your mileage on a single charge by up to 20% β if you use it correctly.
Many people mistakenly think that recovery is just βengine brakes.β In fact, itβs a complex process of converting kinetic energy into electrical energy, which depends on speed, weight of the rider, controller settings, and even air temperature. In this article, weβll look at how recovery works on Xiaomi Scooter, which models support it, and why it can sometimes damage the battery instead of helping.
You'll know:
- π How recovery affects real mileage (test data for the test) M365, Pro 2, 4 Pro)
- βοΈ What settings in the Mi Home app are responsible for the power of recovery (and why they are not always visible)
- β‘ Why Recovery Can Warm Your Battery More Strongly (and When It's Dangerous)
- π¦ How to brake properly to recover the charge as much as possible (step-by-step instructions)
What is Recovery and How Does It Work on Xiaomi Scooter?
Regenerative braking (or just regenerative) is the process where the motor of the scooter goes into generator mode. When you drop the gas or press the brake, the kinetic energy of the movement is converted into electrical energy and returned to the battery. Unlike traditional brakes, where the energy is simply dissipated as heat, here it is partially stored.
Xiaomi electric scooters recovery implemented through the controller ESC (The Electronic Speed Controller, which controls the engine, and when you release the gas handle, the controller automatically switches the engine to generator mode:
- π Speeds β the higher the speed, the more energy can be recovered (but the stronger the brake effect)
- π Settings in firmware - in some models (Pro 2, 4 Pro) you can adjust the intensity
- π Battery level β if the battery is 100% charged, recovery can automatically shut down
- π‘οΈ Ambient temperatures - at sub-zero temperatures, efficiency falls on the 30-40%
It is important to understand that recovery does not return 100% The system's efficiency (efficiency) is about 60-70%. That is, if you are reclaiming 100 Wh, the battery's only gonna be back. 60-70 The rest is lost on heating the wires, the controller and the battery itself.
What Xiaomi models support recovery (comparison table)
Not all Xiaomi scooters are equipped with regenerative braking, and even in supported models, it can work differently.
| Model | Support for recovery | Force adjustment (via Mi Home) | Max: Energy return (according to tests) | Features |
|---|---|---|---|---|
| Mijia M365 | β Yes. | β No. | ~8-12% | Weak recovery, works only with complete discharge of gas |
| M365 Pro | β Yes. | β No. | ~10-15% | More effective than the M365, but unadjusted |
| Pro 2 | β Yes. | β 3 levels (weak/medium/strong) | ~12-18% | Best implementation among budget models |
| 4 Pro/4 Ultra | β Yes. | β 5 levels (in customized firmware) | ~15-22% | Highest efficiency, but requires adjustment |
| Essential/1S | β No. | β | β | Budgetary models without recovery |
Note that even if your model supports recovery, it may not be in standard firmware. M365 Some owners activate it through custom firmware (for example, DownG or ScooterHacking Utility). However, this is risky - incorrect settings can lead to overheating of the controller.
β οΈ Note: On the Pro 2 and later, when activating the maximum recovery level through informal firmware, the rear brake disc may overheat, which is because the recovery and mechanical brake work simultaneously, creating an excess load.
How to Enable and Configure Recovery through Mi Home
If your scooter supports recovery, you can set it up through the official Mi Home app (or Xiaomi Home for new models).
- Connect the scooter to the application via Bluetooth (if not already connected).
- Go to the Settings section β Regenerative braking (in some models, the item is called Energy saving).
- Choose one of the available levels: π’ Weak β minimal braking effect, return ~5-8% energy π‘ Medium - noticeable braking, return ~10-12% π΄ Strong - aggressive braking, return to 15-18% (Only for experienced users)
Save the settings and test the scooter in a safe area.
If your application does not have the item "Regenerative braking", this may mean:
- π± You have an outdated version of Mi Home (update via Google Play or App Store)
- π§ Your model does not support the recovery setting (see table above)
- π The firmware of the scooter is modified (for example, a custom version is installed)
Make sure the battery is charged on 30-80% (not 100%!)
Check the temperature of the controller (not higher than 40).Β°C)
Test on a flat surface without gradients
Use protective equipment (in case of severe braking)-->
On the 4 Pro and 4 Ultra, the advanced recovery settings can be accessed via ScooterHacking Utility (a PC and a firmware cable are required).
- π₯ Battery overheating
- β‘ Failures in the operation of the controller
- π¨ Automatic disabling of the scooter during movement
Pros and cons of recovery: whether it is worth using
Recovery seems like the perfect solution -- free energy and increased mileage -- but it has a downside, so let's figure out when it's useful and when to turn it off.
Benefits of recovery
- β‘ Increased mileage - by 10-20% more kilometers on a single charge (especially noticeable in a city with frequent braking)
- π‘οΈ Less wear of mechanical brakes - part of the braking effort takes over the engine
- πΏ Green β less energy is wasted
- π° Savings on electricity - less often you have to charge a scooter
Disadvantages and risks
- π₯ Additional battery heating β with active recovery, the battery can be heated on 5-10Β°C stronger
- β οΈ Dramatic braking - at high levels of recovery, the scooter can "pinch with its nose" when gas is discharged
- π Accelerated battery wear β frequent charge-discharge cycles reduce the life of lithium-ion cells
- π Inefficiency at high speeds β at higher speeds 25 km/h recovery efficiency drops to 30-40%
Critical point: if you drive mostly on flat roads without braking (for example, on bike lanes outside the city), recovery will give little to no increase in mileage, but will once again load the battery, in which case it is better to turn off or put it to a minimum level.
π‘
On Xiaomi Pro 2 and later, when you activate a strong recovery, you can feel the "recoil" in the gas handle when you brake. That's normal -- that's how engine feedback works. But if the vibration is too strong, reduce the recovery level.
How to brake properly to recover the charge as much as possible
So to make recovery work better, you don't just release the gas, you brake it right.
- Smooth discharge of gas - do not throw the handle abruptly, but gradually reduce the speed. This allows the controller to smoothly transition into generation mode.
- Use combined braking: First, release the gas to activate the recovery. Then, apply the mechanical brake smoothly (if you need to stop completely).
Avoid braking at high speed.
10-20 km/h
25 km/h
Brake down the descents.
One example is that if you drive around a city at an average speed of 20 km/h and brake in front of each traffic light, recovery can bring back up to 15 percent of the energy of the total flow rate, and if you brake abruptly with just a mechanical brake, that potential is lost.
β οΈ Attention: On wet or slippery roads, you can't rely on recovery alone! Electronic braking doesn't block the wheels, but it can cause skids if the road is not sufficiently adhesive. Always use mechanical brakes in dangerous conditions.
What happens if you drive with maximum recovery?
Recovery and battery health: how not to reduce battery life
One of the big misconceptions is that recovery is always good for the battery, and in fact, frequent microcharging can hurt lithium-ion cells more than help with the recharge.
- π Charge-discharge cycles β each time a battery takes energy from recovery, it is considered a microcycle. 1000 These microcycles can reduce the battery life of the 5-10%.
- π‘οΈ Temperature - if the battery is already hot (for example, after heavy driving), recovery will increase heating: 10-35Β°C.
- π Charge level β if the battery is charged 90% or higher, the recovery can be automatically turned off (to avoid recharging the cells).
To minimize harm, follow these rules:
- Do not use regeneration if the battery is charged more than 80%.
- Avoid regeneration at a battery temperature above 40Β°C (check in Mi Home).
- After a long, active recovery trip, let the battery cool before charging from the mains.
- If the scooter is stored for more than a week without use, turn off recovery (to avoid spontaneous microcycles).
Interesting fact: Xiaomi 4 Pro and 4 Ultra models use the system BMS (Battery Management System, which automatically limits recovery if the battery is too hot or charged (M365, Pro 2) such protection may not be available.
π‘
Recovery is only beneficial when braking frequently (city traffic), and at long distances without stopping, it gives little to no mileage gain, but it loads the battery.
Frequent recovery problems and how to fix them
Sometimes recovery doesn't work properly or doesn't work at all, and here are the most common problems and solutions.
| Problem. | Possible cause | Decision |
|---|---|---|
| Recovery doesn't work at all. | Disabled in settings Faulty controller Battery discharged (less than 10%) | Check the settings in Mi Home Charge the battery before 20-30% Reset the controller settings (via ScooterHacking Utility) |
| Recovery works in jerks. | Wear of engine brushes Bad contact in connectors Unofficial firmware | Clear the engine contacts Return to stock firmware Check the chain with a multimeter |
| The scooter sharply brakes when gas is discharged | Too high recovery level Failed Hall sensor | Reduce the level in Mi Home Check engine sensors |
| Battery warms up stronger than usual | Frequent recovery at high speeds Charge above 80% during recovery | Reduce the intensity of recovery Let the battery cool before charging |
If none of the solutions worked, the problem may be in the hardware (controller, engine, battery), in which case it is better to contact the Xiaomi service center or a proven wizard.
β οΈ Warning: If the scooter starts to turn off arbitrarily while driving after activating the recovery, immediately return the standard settings! This is a sign of a controller malfunction or overheating of the power circuit!