Independent Dual Channels
Charge 2 batteries at once
Charge 8 Batteries
With UB4-Pro Manager
25A Ultra-High Current
2400W Fast Charging
Multi-Protection
Overcurrent/Overvoltage/Overtemp
The EV-PEAK U4-HP dual charger is widely used in agricultural drones, inspection, aerial photography, firefighting, surveying, patrol, and plant protection. It is specifically designed for agricultural spraying drones. Featuring a large LCD screen and a user-friendly interface, it provides clear charging information. It can also be paired with the UB4-PRO Manager to charge up to 8 batteries at once, eliminating the need for frequent battery swaps.
Independent Dual Channels: This drone charger supports independent dual-channel output, allowing you to charge 2 batteries simultaneously. It also features smart charging technology that intelligently identifies the voltage level of each cell and charges them in order from high to low voltage at up to 25A.
Charge 8 Batteries with UB4-Pro Manager: The EV-PEAK UB4-Pro Manager charger features smart circuitry that sequentially charges batteries based on their charge and health status. This enables simultaneous charging of up to 8 smart batteries.
Multi-Protection System: This drone battery charger is designed to charge batteries quickly and safely. It incorporates a multi-protection system, including overcurrent, overvoltage, overcharge, and overtemperature protection, ensuring your devices charge safely.
Super Simple Operation: Designed for agricultural drones, this battery charger is easy to operate. Simply press the start button to begin charging, with automatic battery information recognition eliminating the need for cumbersome settings. It's a smart fast charger.
Intuitive LCD Display: The LCD screen displays real-time charging information including operating mode, battery current, battery voltage, charging time, and battery capacity, ensuring your batteries are fully charged for optimal flight time.
Powerful Heat Dissipation: EV-PEAK drone chargers feature a sturdy, lightweight aluminum alloy frame and large aluminum heatsinks. Their fire-resistant and heat-dissipating design prevents damage from lightning strikes, overvoltage, or power surges, protecting both batteries and the charger from burnout.
| AC Input Voltage | 100-240V |
| Charging Power | Max. 2400W |
| Charging Current | Max. 25A |
| Discharge Power | Max. 50W*2 |
| Channels | 2CH |
| Battery Types | LiPo/LiHV/Smart Battery |
| Battery Cell Count | 6-14S |
| Dimensions | 287*200*146mm |
| Weight | 5.8KG |
1. Ensure the power cord is properly connected and the outlet has power.
2. Confirm the power switch on the back of the charger is set to the "ON" position.
3. Check that the AC input voltage is within the 100-240V range.
4. For agricultural sites using portable distribution boxes, check for poor contact or excessive voltage drop due to frequent plugging and unplugging.
| Error Message | Possible Cause |
|---|---|
| BATTERY HIGH VOLTAGE | Battery voltage is too high |
| REVERSE POLARITY | Battery polarity is reversed |
| CELL LOW VOLTAGE | Cell voltage is too low (may be deeply discharged) |
| CELL HIGH VOLTAGE | Cell voltage is too high |
| OUTPUT SHORT CIRCUIT | Output short circuit detected |
| MAX CAPACITY | Maximum charging capacity limit reached |
| SAFETY TIMER | Safety timer triggered |
If you encounter any of these errors, disconnect the battery, check the connections, and try again.
1. Poor contact at the interface (oxidized metal contacts, dust/oil buildup, loose pins).
2. Battery protection mechanisms triggered (over-discharge, over-temperature, etc.).
3. Charging environment temperature outside the safe range (below 5°C or above 40°C).
4. Insufficient load capacity of the power outlet.
We recommend systematically checking these reversible factors first before concluding the charger itself is faulty.
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