• EV-PEAK U4-HP 2400W Dual-Channel UAV Battery Charger

    1200W × 2 | 25A × 2 | 6S–14S

    Two fully independent charging channels for agricultural and industrial UAV batteries.

U4-HP Technical Snapshot

Key charging specifications and battery compatibility of the EV-PEAK U4-HP dual-channel UAV battery charger.

2400W
TOTAL CHARGE POWER
Max. total charging power at AC 220V
25A × 2
CHARGE CURRENT
Up to 25A per independent channel
6S–14S
UAV BATTERIES
LiPo / LiHV / Smart UAV Batteries
2 CHANNELS
INDEPENDENT CHARGING
Charge two batteries simultaneously

Manage Up to 8 Batteries with UB4-Pro

The EV-PEAK U4-HP can be paired with two UB4-Pro units to manage up to eight connected UAV batteries. Each independent charging channel supports one UB4-Pro, with up to four batteries connected to each unit.

The UB4-Pro automatically manages batteries in sequence, prioritizing batteries with higher voltage for charging. This helps reduce manual battery switching during UAV operations.

2 × UB4-Pro | 4 Batteries per Unit | Up to 8 Batteries Connected

Illustration shows one UB4-Pro with four batteries. The U4-HP supports two UB4-Pro units for up to eight connected batteries.

Dual Independent Charging — 1200W × 2

The EV-PEAK U4-HP features two fully independent charging channels, allowing two 6S–14S UAV batteries to be charged simultaneously.

At AC 220V input, each channel delivers up to 1200W charging power and 25A charging current, providing a maximum total charging power of 2400W.

At AC 110V input, the available charging power is reduced by approximately half, with up to 1200W total charging power.

1200W × 2 @ AC 220V | 25A × 2 | Two Batteries Charged Simultaneously

Automatic Battery Recognition and Auto Charging

The EV-PEAK U4-HP automatically recognizes connected UAV batteries to simplify daily charging operations.

For standard LiPo and LiHV UAV batteries, the charger automatically detects the battery cell count and voltage. For compatible smart UAV batteries, battery information is read through communication with the battery BMS.

After battery recognition, the detected information is shown on the charger display. The charger then enters a countdown before charging starts automatically, without requiring the user to manually enter the battery cell count or voltage. The countdown duration may vary depending on the connected battery and communication protocol.

Connect Battery → Automatic Recognition → Countdown → Automatic Charging

Selectable Charging Modes — FAST / NORMAL / SLOW

The EV-PEAK U4-HP provides three selectable charging modes with different charging currents, allowing operators to choose the appropriate mode for different UAV battery charging requirements.

After battery recognition, the charger enters a countdown and then starts charging automatically.

FAST

25A Charging Current

NORMAL

20A Charging Current

SLOW

10A Charging Current

AUTO START

Automatic Charging After Recognition

Smart UAV Battery Communication

The EV-PEAK U4-HP can communicate with compatible smart UAV battery BMS systems
to read battery information and support automatic charging. Communication can be
configured according to different UAV battery system requirements.
DEFAULT

UAVCAN

Default Communication Protocol
The standard U4-HP configuration supports UAVCAN communication for compatible smart UAV battery BMS systems.
CONFIGURABLE

DroneCAN

Available Configuration
The U4-HP can be configured for DroneCAN communication to match compatible smart UAV battery systems.
CUSTOM

RS485

Custom Communication Option
Custom RS485 communication can be provided according to specific battery BMS and project requirements.


Configuration Note:

Communication protocol should be confirmed according to the battery BMS and application requirements before ordering.

Battery Interfaces and Balance Port Pinout

The EV-PEAK U4-HP uses AS150U main charging connectors and an MX3.0 balance port supporting 6S–14S UAV battery systems. The interface and pinout information below helps users verify battery compatibility before charging.

AS150U Charging Connector

The EV-PEAK U4-HP is equipped with AS150U main charging connectors on both independent charging channels for connection to compatible UAV battery systems.

Main Charging Connector
AS150U

Charging Channels
2 independent channels

Supported Battery Range
6S–14S

MX3.0 Balance Port Pinout

The U4-HP uses an MX3.0 balance connector supporting 6S–14S UAV battery systems.
The pinout definition below is based on a front view of the charger-side connector
with the connector latch positioned at the top.

Pinout View:
Front view of charger-side connector, latch at top, read from left to right.
Upper Row
NC
B13
B11
B9
B7
B5
B3
B1
Lower Row
B14
B12
B10
B8
B6
B4
B2
B−
Balance Connector
MX3.0
Supported Battery Range
6S–14S
NC = No Connection

Compatibility Note:
Verify the AS150U charging connector and MX3.0 balance-port pinout before connecting a battery to the U4-HP. If your battery interface differs from the information above, contact EV-PEAK to confirm compatibility before use.

Built-in Protection System

The EV-PEAK U4-HP includes multiple built-in protection functions designed to help protect the charger and connected UAV batteries during charging.

The protection system monitors key electrical and thermal conditions during operation and responds when abnormal conditions are detected.

Charging Protection Functions

Over-Charge Protection
Over-Voltage Protection
Over-Current Protection
Reverse Polarity Protection
Short-Circuit Protection
Over-Temperature Protection

Real-Time LCD Charging Display

The EV-PEAK U4-HP features two LCD screens, one for each independent charging channel, providing real-time charging information during operation.

The displays show key information including operating mode, charging current, battery voltage, charging time and battery capacity, allowing users to monitor the charging status of both channels directly.

Aluminum-Alloy Housing and Dual-Fan Cooling

The EV-PEAK U4-HP uses an aluminum-alloy housing together with two rear cooling fans to help dissipate heat generated during high-power charging.

The active fan cooling system provides airflow through the charger during operation, supporting heat management for its dual-channel charging system.

U4-HP Specifications

Technical specifications of the EV-PEAK U4-HP dual-channel UAV battery charger.

AC Input
100–240V AC
Maximum Total Charging Power
2400W at AC 220V
1200W at AC 110V
Maximum Power per Channel
1200W × 2 at AC 220V
Maximum Charging Current
25A × 2
Charging Channels
2 fully independent channels
Battery Cell Count
6S–14S
Battery Types
LiPo / LiHV / Smart UAV Batteries
Charging Modes
FAST: 25A
NORMAL: 20A
SLOW: 10A
Smart Battery Communication
UAVCAN — Default
DroneCAN — Available Configuration
RS485 — Custom Communication Option
Standard Battery Recognition
Automatic detection of battery cell count and voltage for compatible LiPo and LiHV UAV batteries
Automatic Charging
Automatic charging after battery recognition and countdown; countdown duration varies depending on the connected battery and communication protocol
Main Charging Connector
AS150U
Balance Connector
MX3.0
Cooling
Aluminum-alloy housing with dual rear cooling fans
Display
Dual LCD displays for independent channel charging information
Protection Functions
Over-charge protection / Over-voltage protection / Over-current protection / Reverse polarity protection / Short-circuit protection / Over-temperature protection
UB4-Pro Expansion
Supports 2 × UB4-Pro units, with up to 4 batteries connected per unit and up to 8 batteries connected in total for automatic sequential charging
Configuration Note:
Communication protocol and battery interface compatibility should be confirmed according to the battery BMS and application requirements before ordering.

U4-HP UAV Battery Charger FAQ

Answers to common questions about U4-HP charging power, battery compatibility, communication, interfaces and multi-battery charging.

The U4-HP supports 6S–14S LiPo, LiHV and compatible smart UAV batteries. For standard LiPo and LiHV UAV batteries, the charger can automatically detect battery cell count and voltage. Compatible smart batteries can communicate with the charger through the battery BMS.

Yes. The U4-HP has two fully independent charging channels and can charge two UAV batteries simultaneously. At AC 220V input, each channel provides up to 1200W charging power and 25A charging current, for a maximum total charging power of 2400W.

At AC 220V input, the U4-HP provides up to 2400W total charging power, with up to 1200W available per channel. At AC 110V input, the available total charging power is reduced to approximately 1200W.

The U4-HP provides three selectable charging modes: FAST at 25A, NORMAL at 20A and SLOW at 10A.

Yes. After a compatible battery is connected and recognized, the charger displays the detected battery information, enters a countdown and then starts charging automatically. The countdown duration may vary depending on the connected battery and communication protocol.

The standard U4-HP configuration uses UAVCAN communication for compatible smart UAV battery BMS systems. DroneCAN is available as an alternative configuration, and custom RS485 communication can be provided for specific battery BMS and project requirements. The required protocol should be confirmed before ordering.

The U4-HP uses AS150U main charging connectors and an MX3.0 balance connector for its 6S–14S UAV battery system. Battery connector and balance-port pinout compatibility should be verified before use.

Yes. Each independent U4-HP charging channel can be connected to one UB4-Pro unit, and each UB4-Pro can connect up to four batteries. With two UB4-Pro units, the system can manage up to eight connected UAV batteries using automatic sequential charging, with higher-voltage batteries prioritized for charging.

The U4-HP includes over-charge, over-voltage, over-current, reverse polarity, short-circuit and over-temperature protection.


Need Help Choosing the Right UAV Charger?


Share your battery cell count, capacity, required charging current,
number of batteries to be charged simultaneously, and communication
requirements. EV-PEAK can help you select the appropriate charging
solution for your UAV battery system.


For OEM and system-integration projects, custom communication
requirements, including RS485 integration, can also be discussed
with our team.

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