Product overview
The Grepow Tattu TA75 is a battery charging station for micro FPV instruction, drone soccer education and other organized training activities. Its eight independent charging channels allow up to eight GT30 batteries to charge simultaneously, with up to 2A charging current and up to 8.7W output power per channel. This configuration supports centralized battery preparation before sessions and rotation between training rounds. Automatic recognition and individual channel indicators help instructors manage multiple batteries through a shared charging station.
The charger occupies approximately 145 x 61 x 29 mm and weighs about 211 g, making it suitable for a classroom desk, training bench or mobile equipment station. Its Type-C input accepts 5-20V and up to 5A, and the same connection supports firmware upgrades. Battery integration is restricted to GT30 1S G-Tech smart batteries. Once a compatible battery is correctly connected, the TA75 identifies it and starts charging automatically, reducing repeated manual selection of charging parameters across the training fleet.
Dual-color LEDs provide feedback for each channel: flashing green indicates charging, solid green indicates completion, and solid red flags an abnormal condition requiring attention. Charging stops automatically at full charge. The TA75 detects abnormalities involving low battery voltage, connections and temperature, and includes over-voltage, over-current, short-circuit, over-temperature and reverse-polarity protection. BMS communication and fault alarms further support charging management. These functions still require proper battery handling and charging practices, while the GT30-only compatibility determines which training batteries the station can serve.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | Grepow Tattu TA75 8-Channel Smart Charger. |
| Product purpose | Battery charging for micro FPV drone training, drone soccer education, clubs, technology programs and organized training activities. |
| Charging architecture | Eight independent charging channels. |
| Simultaneous battery capacity | Up to eight GT30 batteries charging simultaneously.GT30 batteries connected to the charging channels. |
| Maximum charging current | Up to 2A.Per charging channel. |
| Maximum output power | Up to 8.7W.Per charging channel. |
| Battery compatibility | GT30 1S G-Tech smart batteries only. |
| Automatic recognition and charging | Automatically recognizes the battery and starts charging.A compatible GT30 1S G-Tech smart battery is correctly connected to a charging channel. |
| Voltage identification | Automatic voltage identification through the G-Tech interface.Compatible G-Tech smart battery connected through the G-Tech interface. |
| Channel status indicators | Dual-color LED indicators for each charging channel. |
| Charging indication | Flashing green. |
| Charge-complete indication | Solid green. |
| Abnormal-condition indication | Solid red. |
| Automatic charge termination | Charging stops automatically at full charge.Battery reaches full charge. |
| Abnormal-condition detection | Detects abnormalities involving low battery voltage, connections and temperature. |
| Body dimensions | Approximately 145 x 61 x 29 mm. |
| Weight | About 211 g. |
| Power input connector | Type-C. |
| Input voltage | 5-20V.Type-C power input. |
| Maximum input current | Up to 5A.Type-C power input. |
| Firmware upgrades | Supports firmware upgrades.Through the Type-C connection. |
| Protection features | Over-voltage, over-current, short-circuit, over-temperature and reverse-polarity protection. |
| Battery management communication and alarms | BMS communication and fault alarms. |
| Charging management limitation | Proper battery handling and charging practices remain necessary. |
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