400 Wh/kg Ultra-High Energy Density Lithium battery

The UHD400 Series delivers extreme energy density for aerial platforms that require maximum endurance with minimum mass. The UHD400 line is engineered for UAVs, eVTOL auxiliary systems, long-range mapping drones, and aerospace-grade applications.

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Product Description
Specification
Product Advantage

Product Description

Maximum Energy Minimum Weight — Designed for Long-Endurance UAVs

Key Features

Ultra-high energy density up to 400 Wh/kg
Optimized for long-endurance fixed-wing UAVs
Lightweight full-tab design for high efficiency
Excellent consistency and low self-heating
Stable medium-rate discharge for long-duration missions

Technical Strengths

High cell uniformity for pack-level reliability
Enhanced structural integrity for vibration resistance
Superior stability under continuous mid-load usage

UHD400_39Ah_3C Discharge Curve

UHD400-39Ah-3C Discharge Curve

Specification

Number	Items	Specifications
1	Nominal Voltage	3.7V
2	Charge Cut-off Voltage	4.25V
3	Discharge Cut-off Voltage	2.5V
4	Nominal Capacity	33Ah	39Ah
5	Energy Density	400Wh/kg
6	Max. Continuous Charge Current	0.5C
7	Max. Continuous Discharge Current	3C / 100A	3C / 117A
8	Weight	Approx. 312g	Approx. 360g
9	Cycle Life	≥ 200 times @ 80%
10	Dimension	1175176mm	10.488192mm