340 Series UAV Battery 6S/7S/12S 20000mAh
340 Wh/kg · 20000 mAh · 6S · Series 340

Product Overview
340 Series UAV Battery 6S/7S/12S 20000mAh is a semi-solid lithium battery pack produced by Shengya Electronics, a China-based drone battery manufacturer and supplier with OEM & ODM capabilities. This model belongs to the 340 Series line (340 Wh/kg), positioned for high energy density. It is offered in a 6S configuration with 20000 mAh capacity, and every unit ships from our factory in Taixing, Jiangsu with full UN38.3 / MSDS documentation.
Whether you are procuring for a single platform or planning a bulk order for a fleet, we custom-build voltage, capacity, connector, BMS protocol and branding to your specification. Direct-from-factory pricing, 7-10 day samples, and an engineering team that answers your questions before the order.
Semi-solid technology sits between conventional lithium polymer and full solid-state. A gel or slurry-like electrolyte keeps the manufacturing process mature while raising energy density and cutting the thermal-runaway risk that haunts liquid packs. For drone builders that means a battery you can push harder, and for fleet buyers it means fewer field failures per thousand cycles. That is the trade we optimize with every pack we ship.
Key Features
What separates this pack from generic lithium polymer batteries, and why OEM buyers spec it into production.
Energy Density
The 340 Series platform targets 340 Wh/kg with a semi-solid electrolyte and high-nickel cathode. Higher Wh/kg means more flight time per kilogram of pack weight, the metric that decides payload margins on survey and delivery drones.
Cycle Life
800-1000 charge/discharge cycles with advanced materials and process control. Fleet operators track cost per cycle, and this is where a semi-solid pack earns back its price premium.
Intrinsic Safety
The semi-solid electrolyte reduces the fire and explosion risk associated with liquid electrolyte packs. Selected models pass needle puncture tests without fire; all models ship with UN38.3 / MSDS / packing certificate.
Customization & BMS
Voltage, capacity, size, connector, structure and BMS are all configurable. Default packs ship without a BMS; we can provide matching BMS with CAN, RS485 or UART communication protocols, plus logo and label customization for OEM customers.
Quality Control & Certifications
Each production batch is tested for capacity, internal resistance and discharge consistency before packing. UN38.3, MSDS and packing certificates are issued per shipment, and the warranty covers quality issues with technical support or replacement. We build on cells from established suppliers and keep batch records traceable from cell lot to final pack.
Applications
Where a 340 Series UAV Battery 6S/7S/12S 20000mAh earns its keep.
This battery is engineered for agricultural spraying, corridor surveying, power-line inspection and similar UAV workloads. Field deployments across these roles keep coming back to the same three numbers: energy density, cycle life, and discharge stability under load.
The 340 Series positioning (heavy-lift and long-endurance platforms) is what differentiates this model from a generic pack: the electrolyte and cell selection are tuned for that operating profile, not for a one-size-fits-all spec sheet.
Operators in these segments tend to standardize on one or two pack sizes so spare inventory stays simple and maintenance crews only learn one connector and one charging profile. A high energy density pack from this series is usually chosen when the mission profile demands either a heavier payload at the same flight time, or a longer flight time at the same payload.
- agricultural spraying
- corridor surveying
- power-line inspection
See how this pack fits a full mission profile: Agricultural Spraying; Surveying & Mapping; Logistics & Delivery; Industrial Inspection;
Why Buy from a China Battery Manufacturer
What enterprise buyers actually ask before they place an order.
When you source a drone battery directly from a factory in China, you cut out trading-company margins and get two things that matter to a fleet buyer: a lower unit price at volume, and an engineering team you can talk to. Shengya Electronics is a manufacturer, not a broker; our production line in Taixing, Jiangsu handles cell sourcing, pack assembly, BMS integration and testing under one roof.
Bulk orders start at a factory-direct price, and every pack is built to your spec. OEM and ODM programs cover connector selection, voltage and capacity tuning, enclosure design, BMS communication protocols (CAN, RS485, UART) and printed branding. Samples ship in 7-10 days, production lead time depends on volume, and international shipping is handled with UN38.3 / MSDS / packing certificates.
Buying from a manufacturer instead of a distributor also means the specification you approve in the sample is the specification that reaches your warehouse. No relabeling, no swapped cells, no surprise revision without a conversation first. That control is the reason OEM buyers in the drone industry keep coming back to the same factory floor.
Learn more about our factory and quality process on the About page, or compare the full range on the Products page.
FAQ
Straight answers for procurement teams.
How long is OEM production lead time for bulk orders?
Functional samples usually ship within 7-10 days. For bulk orders, lead time depends on the design and volume, typically 2-4 weeks after sample approval. OEM and ODM programs share the same production line, so per-unit cost drops as order size grows.
Do you ship drone batteries internationally?
Yes. Every pack ships with UN38.3 test report, MSDS and packing certificate. We regularly export to India, Europe, South Africa and other regions, and can advise on air versus sea routing for your destination.
What is the cycle life of this semi-solid battery?
The 340 Series platform is rated for 800-1000 cycles. Cycle life depends on charge/discharge depth and operating temperature, which is why we publish realistic figures rather than marketing numbers.
Do you provide a BMS with communication protocols?
Yes, on request. Packs default to no BMS; we can integrate matching BMS with CAN, RS485 or UART, and tailor cell-balancing and protection thresholds to your platform.
Can you print our logo or brand on the pack?
Yes. ODM branding covers printed labels, logo, packaging and documentation, so the product arrives ready for your channel.
Key Specifications
| Attribute | Detail |
|---|---|
| Series | 340 Series |
| Energy Density | 340 Wh/kg |
| Capacity | 20000 mAh |
| Configuration | 6S |
| Voltage | 22.2V |
| Cycle Life | 800-1000 cycles |
| Safety | Intrinsic safety design; selected models pass needle puncture tests |
| Customization | Voltage, capacity, size, connector, BMS protocol (CAN/RS485/UART), logo |
| Shipping | UN38.3 / MSDS / packing certificate |
Sources
Shipping and safety references: IATA Dangerous Goods Regulations for lithium batteries, which require UN38.3 testing under the UN Manual of Tests and Criteria, Part III, Section 38.3, and ICAO Technical Instructions for the Safe Transport of Dangerous Goods by Air (Doc 9284) — both published and freely accessible from iata.org and icao.int respectively. Energy-density context for semi-solid battery technology comes from publicly available 2025 industry reporting. Product parameters in the specification table come from our engineering documentation and technical archive.
Looking for the best quality drone batteries?
Send us your specs — voltage, capacity, size, connector, logo. We reply within 24 hours with a tailored quote.
Get a Quote
Shengya Electronics