1500W
Charging Power
1–30A
Adjustable Charging Current
2 Channels
Dual-Channel Charging
6S–14S
Battery Range
PROFESSIONAL DRONE & LARGE FPV APPLICATIONS
Built for Modern Professional Drone & Large FPV Battery Systems
Designed for professional 6S–14S drone and large FPV battery systems where battery capacity, chemistry and permitted charging current can vary between platforms and applications.
01
Large FPV & Professional FPV Platforms
Well suited to compatible high-voltage battery systems used in 18-inch and larger FPV platforms, long-range FPV and other professional FPV applications.
02
Inspection, Mapping & Survey Drones
Supports professional drone battery systems used in infrastructure inspection, mapping, surveying and other data-collection missions.
03
Industrial & Utility Drones
Suitable for compatible battery systems used in powerline inspection, infrastructure monitoring, patrol, public safety and professional utility operations.
04
Professional Aerial Imaging & LiDAR Drones
Supports professional aerial imaging, LiDAR, EO/IR and sensor platforms using compatible 6S–14S drone battery systems.
05
Medium-Size Agricultural Drones
Compatible with medium-size agricultural drone battery systems within the supported 6S–14S range where up to 30A charging meets the required operating workflow.
WIDE BATTERY COMPATIBILITY
Full 6S–14S Battery Support
U4 Neo supports every battery configuration from 6S through 14S, providing one charging platform for a wide range of professional drone and large FPV battery systems.
6S
7S
8S
9S
10S
11S
12S
13S
14S
PROFESSIONAL DRONE SYSTEMS
One Charger Across Different Battery Platforms
The continuous 6S–14S range supports professional drone platforms with different battery voltages, helping simplify charging equipment across inspection, mapping, imaging, utility and other commercial applications.
LARGE FPV SYSTEMS
Support for Higher-Voltage FPV Battery Packs
Support up to 14S makes U4 Neo suitable for compatible high-voltage battery systems used in 18-inch and larger FPV platforms and other professional FPV applications.
Charging current can be adjusted from 1A to 30A according to the connected battery’s specifications and charging requirements.
FLEXIBLE BATTERY SETTINGS
Flexible Charge Voltage for Modern Drone Batteries
Different professional drone batteries can require different charging currents and full-charge voltages. U4 Neo provides adjustable charging parameters so the charger can be configured according to the battery manufacturer’s specifications.
SELECTABLE PER-CELL VOLTAGE
3.60V to 4.50V per Cell
Select the appropriate full-charge voltage according to the connected battery’s specifications and manufacturer-recommended charging requirements.
3.60V
4.20V
4.25V
4.30V
4.35V
4.40V
4.50V
SEMI-SOLID-STATE BATTERIES
Ready for Compatible New Battery Systems
U4 Neo can charge compatible semi-solid-state batteries when the battery manufacturer’s specified per-cell full-charge voltage matches one of the charger’s available voltage settings.
Configure the Charger to the Battery
Charging current and per-cell voltage should always be selected according to the battery manufacturer’s specified limits and charging instructions.
CURRENT
1–30A Adjustable
CELL VOLTAGE
3.60–4.50V / Cell
BATTERY REQUIREMENTS
Manufacturer-Specified Settings
CLEAR CHARGING INTERFACE
Charging Data at a Glance
The color display provides clear access to battery setup, individual cell information and real-time charging data for both channels.
01
Battery Setup & Cell Monitoring
Configure battery charging parameters and view pack voltage, individual cell voltages and cell-voltage differences from the setup interface.
02
Real-Time Charging Status
Follow charging progress, current, pack voltage, charged capacity, temperature and individual cell voltage during the charging process.
03
Dual-Channel Monitoring
View key charging information for CH1 and CH2 from one interface, including battery voltage, charging current, state of charge and cell-level data.
SMART CHARGING WORKFLOW
Automatic Charging with Saved Settings
LiPo is the default battery type on U4 Neo. After a compatible battery is connected, the charger begins a countdown using the current or previously saved charging settings. If no parameters are changed, charging starts automatically when the countdown finishes.
STEP 01
Connect the Battery
Connect a compatible battery and U4 Neo automatically starts the charging countdown using the current saved setup.
STEP 02
Automatic Start
If no settings are changed during the countdown, charging begins automatically when the countdown is complete.
STEP 03
Adjust When Needed
Battery type, charging current and other applicable parameters can be adjusted during the countdown. After making changes, press and hold the charging button to begin charging.
STEP 04
Settings Are Remembered
The updated charging settings are saved for the next session, so the same battery setup can use the remembered parameters without repeated configuration.
Always verify the battery type, cell count and charging parameters when connecting a new or different battery setup.
ENGINEERING ESSENTIALS
Power, Protection & Cooling
Essential power-management, protection and cooling functions are integrated into U4 Neo for professional charging applications.
Active PFC
Active power factor correction is built into the U4 Neo AC input architecture.
Charging Protection
Short-Circuit Protection
Over-Voltage Protection
Over-Current Protection
Over-Voltage Protection
Over-Current Protection
Active Air Cooling
Built-in fan cooling supports heat dissipation during high-power charging operation.
CHARGING & COMMUNICATION INTERFACES
Built for Professional Drone Battery Integration
U4 Neo combines high-current charging and balance connections with smart battery communication options for professional drone battery systems and OEM integration projects.
MAIN CHARGING CONNECTOR
AS150U
AS150U is used as the main charging connection for compatible professional drone and large FPV battery systems.
BALANCE CONNECTOR
MX3.0
The MX3.0 balance connection supports cell-level voltage monitoring and balancing for compatible 6S–14S battery packs.
SMART BATTERY COMMUNICATION
Communication Options for Different Battery Systems
U4 Neo supports BMS communication for compatible smart drone batteries, with protocol options available for different battery platforms and integration requirements.
01
UAV CAN — Standard
U4 Neo is supplied with UAV CAN communication as the standard configuration for compatible smart battery systems.
02
DroneCAN — Configurable
The communication configuration can be changed to DroneCAN for compatible battery systems that require the DroneCAN protocol.
03
RS485 — Customizable
RS485 communication can be customized for OEM battery systems and project-specific integration requirements.
Smart battery communication requires a compatible battery system and matching communication protocol.
TECHNICAL SPECIFICATIONS
U4 Neo Specifications
Technical specifications for professional drone and large FPV battery charging applications.
AC Input
100–240V AC
Max. Charging Power
1500W total @ 220V AC / approx. 750W total @ 110V AC
Channels
2
Charging Current
1–30A adjustable, single channel
Dual-Channel Current
Up to 15A × 2 simultaneously
Dual-Channel Power
Power evenly distributed between both channels
Battery Range
6S–14S
Battery Types
LiPo / LiHV / LiFe
Per-Cell Charge Voltage
3.60 / 4.20 / 4.25 / 4.30 / 4.35 / 4.40 / 4.50V
Semi-Solid-State Batteries
Supported when specified charge voltage matches an available setting
Main Connector
AS150U
Balance Connector
MX3.0
Smart Battery Communication
UAV CAN standard / DroneCAN configurable / RS485 customizable
PFC
Yes
Storage Discharge
30W, one channel at a time
Cooling
1 fan
Protection
Short Circuit / Over-Voltage / Over-Current
Operation
Color display + scroll wheel
Dimensions
230 × 155 × 118 mm
Weight
2.06 kg
Maximum charging power and current depend on AC input voltage, battery voltage and the charging limits of the connected battery.
FREQUENTLY ASKED QUESTIONS
U4 Neo FAQ
Common questions about battery compatibility, charging current, professional drone applications and smart battery communication.
What battery cell counts does the EV-PEAK U4 Neo support?
U4 Neo supports the complete range from 6S through 14S, including 6S, 7S, 8S, 9S, 10S, 11S, 12S, 13S and 14S battery packs.
Is the charging current adjustable?
Yes. In single-channel operation, charging current can be adjusted from 1A to 30A. The current should be selected according to the battery capacity, chemistry and manufacturer-specified charging limits.
Can U4 Neo charge two batteries at the same time?
Yes. U4 Neo is a dual-channel charger and can charge two batteries simultaneously at up to 15A per channel. Available charging power is evenly distributed between the two channels during dual-channel operation.
Can U4 Neo charge 12S and 14S drone batteries?
Yes. Both 12S and 14S are within the supported 6S–14S range, making U4 Neo suitable for compatible higher-voltage professional drone and large FPV battery systems.
Is U4 Neo suitable for 18-inch and larger FPV drones?
Yes, for compatible battery systems. U4 Neo is well suited to high-voltage battery packs used in 18-inch and larger FPV platforms, long-range FPV and other professional FPV applications within its 6S–14S range and charging limits.
Can U4 Neo deliver 1500W when connected to 110V AC?
No. Maximum total charging power is 1500W with 220V AC input. With 110V AC input, the maximum total charging power is approximately 750W.
Can U4 Neo charge semi-solid-state drone batteries?
U4 Neo can charge compatible semi-solid-state batteries when the battery manufacturer’s specified per-cell full-charge voltage matches one of the charger’s available voltage settings. Charging current must also follow the battery manufacturer’s specified limits.
What per-cell charge voltage settings are available?
Available settings are 3.60V, 4.20V, 4.25V, 4.30V, 4.35V, 4.40V and 4.50V per cell. Always select the setting specified by the battery manufacturer.
Does U4 Neo support smart drone batteries and BMS communication?
Yes. U4 Neo supports BMS communication for compatible smart battery systems. UAV CAN is the standard communication configuration, the charger can be configured for DroneCAN, and RS485 communication can be customized for OEM or project-specific requirements.
Does U4 Neo have a battery storage function?
Yes. U4 Neo has a dedicated STORAGE function with up to 30W maintenance discharge. Storage discharge operates on one channel at a time.
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.
We are committed to enabling technology to make life better!
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