Global drone operators face a persistent set of engineering constraints: insufficient discharge capacity, drone battery life bottlenecks, low charging efficiency, unstable power output in extreme environments, and inconsistent cell performance that undermines both safety and endurance. Addressing these challenges requires more than incremental improvement—it requires a systems-level approach to battery cell design, BMS architecture, and structural engineering. Shenzhen Jentc Technology Co., Ltd., operating under the brand names Jentc and Rechane, has built its entire technical roadmap around solving exactly these pain points through high-voltage drone battery customization.

A Fifteen-Year Technical Trajectory in High-Voltage Systems

Founded in 2011 and headquartered in Shenzhen with global business coverage, Jentc has focused for 15 years on full-stack customization services for high-rate lithium batteries, drone batteries, semi-solid-state batteries, and supporting BMS management systems. The company's high-voltage development history is documented through a series of sequential technical milestones:

In 2015, the company pioneered the launch of 4.35V high-voltage drone batteries (LIHV), establishing an early foothold in high-voltage lithium chemistry for aerial applications. In 2019, this was followed by an active battery balancing system (BMS) and a high-voltage version of the 3C fast-charging drone battery. In 2021, the company pioneered the 4.4V ultra-high-voltage large-capacity drone battery. Subsequent years brought a 100V high-voltage drone battery intelligent management module and charger (2022), a drone battery data acquisition module (2022), a 200V high-voltage drone battery intelligent management module and charger (2023), and a 400V high-voltage drone battery and charging solution (2024). This progression—from 4.35V cell chemistry to 400V system-level voltage architecture—reflects a business philosophy in which "industry development" serves as the guide, "application technology" as the cornerstone, and "value enhancement" as the mission.

What Makes a High-Voltage Drone Battery Different

A high-voltage drone battery is not simply a battery with a higher number on the label. It is a combined result of cell formula engineering and BMS logic working together. Jentc's differentiating approach rests on two pillars:

Battery core customization: The company uses higher-performing positive and negative electrode sheets, electrolytes, separators, and conductive agents, combined with innovative formulas and processes. This raises the discharge platform of the cell, which in high-voltage formats such as 4.35V and 4.4V chemistry translates directly into greater energy density, longer drone flight time, and stronger power output compared with conventional 4.2V cells.

BMS customization for high-voltage architectures: More reasonable SOC calculation and discharge logic resolve battery expansion and discharge failure risks that become more pronounced at elevated voltages. Active balancing is applied to maintain consistency across series-connected cells, which is essential in high-voltage packs where dozens of cells may be stacked in series and any imbalance is magnified. This directly extends the cycle life of the battery pack.

The company's customization scope for high-voltage systems spans voltages of 400V and below, discharge rates below 180C, energy density up to 420Wh/kg, cell capacity up to 90AH, fast charge up to 5C, low-temperature operation above -70℃, and high-temperature tolerance below 80℃, alongside a complete set of drone battery BMS software and hardware.

Field-Proven High-Voltage Applications

The practical value of this high-voltage approach is illustrated across several documented project cases.

In a 2022 case involving large and heavy-load, vertical take-off and landing UAVs, the customer's original configuration used eight 4.2V ordinary cells forming an 88.8V 24S pack at 10C and 10000mAh, delivering only 5 minutes of flight time against a customer expectation of 6.5 minutes. Jentc's engineering team replaced this with a 4.4V ultra-high-voltage battery cell, which offered a higher discharge platform. Combined with adjusted separator, copper foil, and conductive agent formulas to reduce weight to 5.8Kg, and a capacity increase to 12000mAh at 10C, the overall energy density rose by more than 25%. Flight endurance increased from 5.5 minutes to 7.5 minutes, exceeding the customer's original expectations.

In a 2023 case for pipeline inspection and indoor inspection drones, flight time was limited to just 15 minutes. Based on drone operating data, the team switched to a 4.4V high-voltage drone battery solution and adjusted the positive and negative material, electrolyte, separator, copper foil, and conductive agent formulas. Battery life increased from 15 minutes to 18 minutes.

In a 2024 case for water drones and water rescue drones, the customer's 6S 7500mAh 50C battery weighed 1020g but still left the drone with insufficient power to lift off from water. Using the company's independently developed drone battery BMS data acquisition module and drone flight data, engineers configured a corresponding 4.4V high-voltage drone battery cell formula. The resulting 6S 6600mAh 15C battery weighed only 810g, increased energy density by 25%, extended battery life by 25%, and allowed the drone to lift off from water with ease.

Most recently, a 2026 case for underwater drones required a maximum voltage of 320V, presenting distinct high-voltage safety demands in a water-related environment. The solution combined a semi-solid battery cell (360Wh/kg, 3.7V 3C 50AH) arranged in three 28S50AH modules connected in series to form an 84S50AH pack, governed by a 1 master + 3 slave BMS architecture. This configuration incorporated insulation detection with fault-triggered output cutoff, liquid leakage detection, a pre-charging circuit, CAN communication protocol, SOC data display, and emergency shutdown output—demonstrating how high-voltage safety and full-system customization (battery cell + BMS + battery PACK) are engineered together rather than as an afterthought.

Industry Applications and Certifications

High-voltage drone battery solutions from Jentc are adapted across agricultural plant protection, large-load drones, power and photovoltaic inspection, crossing drones, pipeline inspection drones, logistics drones, cleaning drones, and formation drones. The company holds global certifications including UL, CE, CB, and UN38.3, and maintains an R&D team with full-stack development capability spanning battery cell formula design, BMS hardware design, embedded software, and communication protocol stack development.

Conclusion

For operators evaluating high-voltage drone battery options, the technical record matters: a documented progression from 4.35V in 2015 through 4.4V in 2021 to 400V system architecture in 2024, paired with case-verified outcomes across heavy-load, inspection, water-based, and underwater drone applications. Shenzhen Jentc Technology Co., Ltd. positions battery cell formula design, BMS logic, and structural design as an integrated system rather than isolated components, guided by the company's stated core values of safety, innovation, and quality.

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SHENZHEN JENTC