Ultra-high-voltage drone batteries have become a defining requirement for industries pushing the limits of payload, endurance, and operational safety—from underwater drones navigating water-related environments to large-load platforms performing vertical take-off and landing. Among the companies addressing this demand with full-stack engineering rather than off-the-shelf components is Shenzhen Jentc Technology Co., Ltd., operating under the brand names Jentc and Rechane.
A 15-Year Foundation in High-Rate and High-Voltage Battery Engineering
Since its establishment in 2011, Shenzhen Jentc Technology has focused on full-stack customization services for high-rate lithium batteries, drone batteries, semi-solid-state batteries, and supporting BMS management systems. The company covers the entire link of cell formula design, supporting BMS development, and structural design, headquartered in Shenzhen with business coverage extending globally. This 15-year focus on the high-rate battery customization industry has produced dozens of patents and an R&D team with full-stack development capabilities spanning battery cell formula design, BMS hardware design, embedded software, and communication protocol stacks.
The company's core values—Safety, Innovation, Quality—and its business philosophy of "industry development as the guide, application technology as the cornerstone, and value enhancement as the mission" directly inform how ultra-high-voltage drone batteries are engineered, tested, and delivered.
Why Ultra-High-Voltage Matters for Drone Applications
Industry pain points commonly associated with drone power systems include insufficient discharge capacity, battery life bottlenecks, low charging efficiency, unstable power in extreme environments, bulging batteries, poor cell consistency, low energy density, and unsatisfactory high- and low-temperature performance. Ultra-high-voltage battery architecture addresses several of these simultaneously: higher voltage platforms allow more power to be delivered with proportionally less current, which reduces heat generation, tab and wiring stress, and weight—all while improving discharge stability under demanding flight or industrial conditions.
Shenzhen Jentc Technology's technical accumulation in this area is documented across more than a decade. In 2015, the company pioneered the 4.35V high-voltage drone battery (LIHV). In 2019, it launched an active battery balancing system (BMS) and pioneered the high-voltage version of the 3C fast-charging drone battery. In 2021, it pioneered the 4.4V ultra-high-voltage large-capacity drone battery. Progress continued into higher voltage classes: a 100V high-voltage drone battery intelligent management module and charger in 2022, a 200V high-voltage intelligent management module and charger in 2023, and a 400V high-voltage drone battery and charging solution in 2024. This progression—from 4.35V cell chemistry to 400V system-level architecture—reflects a consistent "Application Scenario + Innovative Technology" route aimed at improving overall drone performance.
Engineering Depth Behind Ultra-High-Voltage Solutions
Cell-Level Customization
The differentiating value of Jentc's approach begins at the cell level. By selecting better-performing positive and negative electrode sheets, electrolytes, separators, and conductive agents, and by applying more innovative formulas and processes, the company increases energy density and discharge platform stability—both essential for ultra-high-voltage applications where every gram and every volt matters. The company's stated customization scope for voltage-class products covers 400V and below, with discharge rates below 180C, energy density of 420Wh/kg and below, cell capacity of 90AH and below, fast charge of 5C and below, low-temperature operation above -70℃, and high-temperature operation below 80℃.
BMS Architecture for High-Voltage Safety
Voltage without control is a liability, not an advantage. Shenzhen Jentc Technology's BMS customization service is built around individual application needs and includes overcharge, over-discharge, over-current, short-circuit, and temperature protection; current-limiting logic tailored to flight scenarios; data collection of voltage, current, and temperature; customizable single- or multi-protocol communication via CAN bus and Bluetooth; adjustable software logic algorithms; SOC and SOH calculation and feedback; active and passive balancing with configurable control logic; automatic logging for fault location; and 4G-enabled remote monitoring for cloud-based visualization of battery pack status.
Proven in the Field: A 320V Underwater Drone Case
A 2026 underwater drone project illustrates how these capabilities combine in an ultra-high-voltage context. The scenario required a lightweight battery capable of operating safely at a maximum voltage of 320V, with insulation detection and output control, liquid leakage detection, a limited module count, a pre-charging circuit, CAN communication, SOC data display, emergency shutdown output, and waterproofing.
The delivered solution used a semi-solid battery with an energy density of 360Wh/kg, specified as 3.7V 3C 50AH. Three 28S50AH modules were connected in series to form an 84-series 50AH battery pack. The BMS architecture used a 1-master-plus-3-slave configuration, with each slave board collecting cell voltage, temperature, total module voltage, current, and SOC for a single module and reporting this data to the master board over the CAN protocol; the master board then executed fault reporting and start/cut-off logic. Relays controlled input and output, insulation detection triggered output cutoff on fault, a liquid leakage sensor monitored for water ingress with fault-triggered cutoff, and temperature detection followed the same fault-response logic. The final battery specification was 84S 50Ah, and the project was reported as running well with verification completed.
A Large-Load UAV Case at 92.4V
An earlier project for a large and heavy-load, vertical take-off and landing UAV further demonstrates the value of high-voltage cell selection. The original battery configuration was eight 4.2V ordinary cells forming an 88.8V, 24S, 10C, 10000mAh pack with a 5-minute flight endurance and a customer target of 6.5 minutes. Jentc's solution replaced the ordinary 4.2V cells with a 4.4V ultra-high-voltage cell offering a higher discharge platform, adjusted separator, copper foil, and conductive agent formulas to reduce weight to 5.8kg, and increased capacity from 10000mAh to 12000mAh at a 10C discharge rate. The result was an energy density increase of more than 25% and flight endurance extended from 5.5 minutes to 7.5 minutes, exceeding the customer's expectation.
Certifications and Global Trust
Trust in ultra-high-voltage battery systems depends on verifiable compliance as much as technical performance. Shenzhen Jentc Technology holds global certifications including UL, CE, CB, and UN38.3, supporting deployment across international markets. Products span high-rate batteries, drone batteries, semi-solid-state batteries, robot batteries, high-voltage lithium batteries, fast-charging batteries, high-temperature and low-temperature batteries, intelligent monitoring modules, and intelligent equalizing chargers and power modules, applied across UAVs, hydrogen fuel power auxiliary systems, robots, and portable equipment.
Choosing a Partner for Ultra-High-Voltage Drone Power
For organizations evaluating ultra-high-voltage drone battery solutions, the underlying question is whether a supplier can integrate cell chemistry, BMS logic, and structural design into a single, verified system rather than assembling disconnected components. Shenzhen Jentc Technology's documented progression from 4.35V to 400V systems, its customizable BMS safety architecture, and its field-verified cases—including the 320V underwater drone and the 92.4V large-load UAV—position it as a technically grounded option for teams seeking ultra-high-voltage battery systems built on cell, BMS, and PACK-level customization rather than generic specifications.
https://www.uav-battery.com/
Shenzhen Jentc Technology
About Author
