330wh/kg 33000mah 21.9v 6s Solid State Lithium Ion Battery Pack

Product Advantage

Massive capacity, extended endurance

33,000mAh / 723Wh provides ~20% more energy than 27,000mAh versions, enabling flight times beyond 50 minutes (payload-dependent).

Ultra-lightweight, heavier payloads

330Wh/kg makes it 30% lighter than LiPo, allowing more sensors, liquids, or cargo per flight.

Solid-state safety, zero risk

Non-flammable, leak-proof, and resistant to puncture/overcharge – ideal for manned eVTOL and high-value equipment.

All-climate stable output

Operates from -20°C to 55°C with flat 3C discharge voltage, performing reliably in freezing mountains or scorching fields

Long cycle life, low TCO

Retains ≥80% capacity after 500 cycles, significantly lowering cost per use and replacement frequency.

Parameter Property

What is this product?

The KNS solid state lithium-ion battery pack delivers 340Wh/kg energy density with 28,000mAh capacity at 22.2V (6S). Using true solid state electrolyte technology, it eliminates leakage and minimizes thermal runaway risks. Designed for professional drones, it provides safe, stable, and long-lasting power for demanding aerial missions.

Application

Ultra-long endurance UAVs – Border patrol, pipeline monitoring, large-area mapping – cover more ground per flight.

eVTOL air mobility – Higher capacity supports short-range passenger flights; solid-state safety meets strict aviation standards.

Heavy-lift cargo drones – Carry 2–3kg extra payload per trip, boosting delivery efficiency.

Industrial inspection & rescue – Powers robots and underwater vehicles with long-lasting energy.

Emergency portable power – 723Wh for rapid deployment in disasters, powering comms and medical gear.

Our Assembly Process

Cell match – Check each cell’s voltage, internal resistance, and capacity, then match them into consistent groups.

Tab trimming – Connect cells in series or parallel to assemble into battery packs.

Assemble battery cells – Integrate with PCB board including overcharge, overdischarge, MOS, and temperature protection.

Solder welding – Use soldering iron to heat solder wire, melt it onto target parts, and let cool for solid connection.

Package – Bubble column packaging + carton box with foam protection, ready to ship.

Weighting & aging – Test voltage and internal resistance, then perform aging test on every battery.

Heat shrink packaging – Wrap black and clear PVC protective film, then add label.

Install aluminum panels – Add aluminum sheet and tape to the battery pack for extra protection.

Our Company

Beijing KNS New Energy Technology Co., Ltd. is a high-tech enterprise specializing in the R&D and manufacturing of high-energy-density solid-state lithium batteries-. The company's core products are widely used in drones, UAVs, eVTOL (electric vertical take-off and landing) aircraft, and other applications.