Tattu Pro Max: From Pro to Max for Demanding UAV Operations

As agricultural UAVs move toward heavier payloads, more frequent missions, and higher productivity, their batteries face greater demands.

Under heavy loads and high temperatures, batteries need stable power, fast turnaround, long service life, and reliable performance in demanding environments. For high-utilization fleets, these factors directly affect operating efficiency and long-term costs.

Tattu Pro Max is a full upgrade of the Tattu Pro series for 10–20L heavy-duty agricultural UAVs and 12–14S power platforms. Improvements to cell performance, charging and discharging, BMS management, structural protection, and usability make it better suited to frequent, heavy-duty operation.

From Pro to Max — more power, longer service life, and lower operating costs.

Stable Under Load. Steady in Heat.

Heavy-load takeoff and sustained full-load flight require high current, while voltage sag and heat can affect both power and usable flight time.

Tattu Pro Max uses a new cell chemistry with up to 6C continuous discharge and low internal resistance for more stable output. In testing, compared with the previous generation, runtime increased by 40 seconds and temperature rise decreased by 4°C.

This provides more consistent performance during continuous heavy-load operation, especially in hot conditions.

In a 20L agricultural UAV flight test, Pro Max delivered 34 minutes without payload and 14 minutes at full load, demonstrating sustained power delivery on a heavy-duty platform.

9-Minute Full Charge

For high-frequency fleets, productivity also depends on how quickly a battery can return to service.

Pro Max supports 110A, 5C fast charging and reaches a full charge in approximately 9 minutes with the TA7200PRO charger. Its maximum allowable charging temperature has also been increased to 75°C, extending the temperature range for fast charging.

This reduces post-flight cooling and charging delays, shortening battery turnaround and improving continuous operating efficiency.

1000+ Cycles. Fewer Replacements.

During peak seasons, agricultural UAV batteries repeatedly undergo high-current discharge and fast charging, making cycle life an important part of long-term operating cost.

With upgraded battery materials and BMS algorithms, Tattu Pro Max delivers 1000+ cycles, approximately 2× the cycle life of the previous generation.

A longer service life means more missions per battery, fewer replacements and spare batteries, and lower long-term purchasing and maintenance costs.

Built for Harsh Conditions

Moisture, humidity, and chemical mist place additional demands on agricultural UAV batteries.

Pro Max features an integrated top-cover and battery-body housing, water-resistant plugs for screw holes, and internal potting protection for relevant metal components.

These structural upgrades strengthen areas vulnerable to moisture and corrosion, improving durability and reliability in frequent outdoor operation.

Smart App Connectivity

As fleets grow, battery monitoring, maintenance, and data management become increasingly important.

Tattu Pro Max connects to the app for battery data monitoring and firmware updates. It is also compatible with the DroneCAN protocol, enabling battery status and operating data to be exchanged with compatible flight controllers and UAV systems.

More convenient data access simplifies routine inspection and maintenance while improving multi-battery fleet management.

Ultra-Low Power in Storage

Agricultural UAV use is seasonal. Batteries may cycle frequently during peak periods and remain idle for extended periods during the off-season.

An optimized BMS circuit and sleep strategy reduce standby consumption and the risk of over-discharge during storage.

For extended storage, we recommend checking battery status and recharging at least once every five months to maintain an appropriate storage condition.

Easier to Use. More Durable.

Pro Max also improves data access, status checking, and durability in daily field use.

The Type-C direct connection enables data transfer and firmware updates without an additional adapter box, with battery data still accessible at 0% SOC. Compared with the previous design, the upgraded RGB status indicator provides more intuitive operating and health information. High-density braided discharge leads further improve resistance to abrasion and physical damage.

Together, these upgrades make daily maintenance more straightforward while reducing wear from repeated handling and outdoor use.

Battery Models and Compatible Chargers

From Pro to Max, Built for Long-Term Demanding Operations

Tattu Pro Max is developed around real operating needs, with coordinated improvements in power delivery, charging efficiency, service life, environmental protection, and battery management.

By combining stronger power performance with smarter management, Pro Max integrates more effectively into daily operations, helping reduce charging delays and maintenance pressure, extend useful battery life, and provide reliable power for continuous, efficient fleet operation.