1. Introduction
This manual provides essential instructions for the safe and efficient use, maintenance, and storage of your Autel EVO Max 4T/4N Intelligent Flight Battery. Please read this manual thoroughly before using the battery to ensure optimal performance and longevity.
2. Product Overview
The Autel EVO Max 4T/4N Battery is a high-capacity Lithium Polymer battery designed specifically for the Autel EVO Max 4T and EVO Max 4N drones. It features advanced technology for extended flight times and enhanced safety.
Key Features:
- Large Capacity: 8070mAh capacity, providing up to 42 minutes of flight time.
- Hot-Swappable Functionality: Allows for battery changes during drone operation to extend flight time (feature available with future updates).
- Advanced Self-Heating: Automatically activates in temperatures below 10°C (50°F) to maintain optimal performance and prolong flight time in cold conditions (feature available with future updates).
- Lightweight Design: Weighs only 520g for easy portability.
- Multiple Protection Features: Includes low battery protection, charging temperature detection, overcharge protection, ultra-low power mode, power saving mode, balance protection, short circuit protection, and current protection.
Figure 2.1: Autel EVO Max 4T Battery
Figure 2.2: Key Features of EVO Max Series Battery
Figure 2.3: Compatibility with EVO Max 4T and EVO Max 4N Drones
3. Setup
3.1 Battery Installation
- Ensure the battery is powered off before inserting it into the aircraft.
- Align the battery with the battery compartment on the drone.
- Gently push the battery until it clicks securely into place.
3.2 Initial Charging
Before first use, fully charge the battery. Use only batteries and charging devices authorized by Autel Robotics. A full charge typically takes approximately 90 minutes.
Video 3.1: Autel EVO II Battery Usage and Maintenance. This video demonstrates how to install the battery into the drone, the importance of fully charging before flight, and the approximate charging time. It also highlights the use of authorized charging devices and the risks of using damaged chargers.
4. Operating Instructions
4.1 Powering On/Off
To power on or off the battery, press and hold the power button for 3 seconds. The battery indicator lights will illuminate to show the current battery level.
4.2 Battery Level Indication
The battery features LED indicators to display the charge level:
- 0% - 25%: One LED illuminated.
- 26% - 50%: Two LEDs illuminated.
- 51% - 75%: Three LEDs illuminated.
- 76% - 100%: Four LEDs illuminated.
Figure 4.1: Battery Appearance and LED Indicators
4.3 Hot-Swapping Function
The 2025 newest battery supports hot-swapping, allowing you to change batteries easily while the drone is in operation to extend flight time. This feature will be available in a future firmware update.
Figure 4.2: Hot-Swappable Battery in Action
4.4 Automatic Self-Heating
In low-temperature environments (below 10°C), the battery will automatically activate its self-heating function. This helps maintain optimal battery temperature, ensuring consistent power delivery and extending flight time. This feature will be available in a future firmware update.
Figure 4.3: Battery Self-Heating in Cold Conditions
5. Maintenance
5.1 Charging Guidelines
- Always fully charge the battery before each flight.
- After flying, allow the battery to cool down to room temperature before charging to prevent overheating and potential damage.
- Do not use damaged battery chargers.
5.2 Storage
- Store batteries in a dry, well-ventilated area at room temperature (ideal temperature is 22°C to 28°C / 72°F to 82°F).
- Avoid storing batteries in direct sunlight or near sharp items, moisture, or metal.
- When not in use, EVO Max batteries automatically discharge slowly over time. Charge unused batteries once a month to prevent critical discharge, which can damage battery cells.
- If the battery is stored in a high-temperature environment or not used for 6 days with a high power level, the self-discharge protection will activate.
5.3 General Care
- When the battery is in the aircraft, do not let it come into contact with moisture or excessive heat.
- Be aware of the effect weather has on your battery when flying; expect shorter battery life in extreme conditions.
Figure 5.1: Additional Battery Protection Features
6. Troubleshooting
6.1 Overheat Protection
If the battery overheats, the second LED indicator will flash. Charging will be prevented until the battery cools down to a normal operating temperature. Allow the battery to cool off before attempting to charge it again.
6.2 Ultra-Low Power Consumption Mode
If the battery is discharged to 8% or less and left for more than 1 day, it will enter an ultra-low power consumption mode to protect itself. In this state, battery level indicators will not turn on, and the battery will need to be reactivated by charging.
6.3 Low Battery Warnings During Flight
Do not ignore battery error messages or low battery warnings when flying. If a low battery warning is displayed, return to home immediately to ensure a safe return and prevent potential damage or loss of the drone.
7. Specifications
| Specification | Value |
|---|---|
| Battery Type | Lithium Polymer |
| Capacity | 8070 mAh |
| Voltage | 14.88 V |
| Energy | 120 Wh |
| Item Weight | 1.98 pounds (approx. 898g) |
| Package Dimensions | 10.28 x 9.02 x 5.59 inches |
| Manufacturer | Autel |
| Model Number | Autel EVO Max 4T/4N Battery |
Figure 7.1: Product Dimensions
8. Warranty and Support
Autel Robotics provides a 12-month quality guarantee for this battery. Additionally, a 30-day free exchange and refund policy is offered.
8.1 Customer Support
For any questions or concerns regarding your Autel EVO Max 4T/4N Battery, please contact Autel Customer Service. You can reach them via email at AutelStoreOnline@outlook.com.
Figure 8.1: Autel Customer Service
8.2 Battery Disposal
Please properly dispose of old or damaged batteries at an authorized collection center. Do not dispose of batteries with regular household waste.
