Product overview
Shenzhen Grepow Battery Co., Ltd.’s Tattu TA75 is an eight-channel intelligent balance charger for GT30 1S G-Tech smart batteries used in microdrone and drone soccer teaching, training and competitions. Its configuration supports up to eight batteries charging simultaneously through independently operating channels. Connecting a compatible battery initiates automatic recognition and charging, with battery type, series cell count, voltage, capacity and cycle information identified without manual parameter entry. This arrangement supports battery rotation between lessons, training sessions and competition activities.
The compact charger measures 145 ± 1 × 61 ± 1 × 29 ± 1 mm and weighs 211 ± 10 g, with Type-C input rated at 5–20 V DC and 5 A maximum. Each channel supplies 2.5–4.35 V DC at up to 2 A and 8.7 W, with an independent dual-color status indicator. Charging stops automatically when complete, and detection covers low voltage, connection abnormalities and abnormal temperature. Operation is specified at 0–45°C. Compatibility is specifically with GT30 1S G-Tech smart batteries; it is not a universal 1S charger.
Specifications
| Specification | Value & conditions |
|---|---|
| Model | Tattu TA75 |
| Charging channels | 8 independent channels; simultaneous charging of up to 8 batteries.With GT30 1S G-Tech smart batteries. |
| Input | 5–20 V DC, 5 A maximum. |
| Output | 2.5–4.35 V DC, 2 A maximum.Per channel. |
| Maximum charging current | 2 A.Per channel. |
| Output power | Up to 8.7 W per channel.Per channel; 8 channels total. |
| Operating mode | Charging mode. |
| Supported batteries | GT30 1S G-Tech smart batteries. |
| Automatic parameter recognition | Automatically identifies battery type, series cell count, voltage, capacity and cycle information; no manual charging parameter setup required.When a compatible battery is connected. |
| Operating temperature | 0–45°C. |
| Dimensions | 145 ± 1 × 61 ± 1 × 29 ± 1 mm. |
| Weight | 211 ± 10 g. |
| Input connector | Type-C. |
| Status indicators | Independent dual-color indicator: flashing green for charging, steady green for complete and red for a detected abnormality.Each charging channel. |
| Charging protection | Automatic stop at full charge; low-voltage, abnormal battery connection and abnormal temperature detection. |
| Channel isolation | Other charging channels remain unaffected.When one channel develops an abnormality. |
| Compatibility limitation | Not a universal 1S battery charger.Designed specifically for GT30 1S G-Tech smart batteries. |
| Automatic charging start | Automatically recognizes the battery and starts charging.After battery connection. |
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