8S 40000mAh Solid State UAV Battery

The HSS Energy 8S 40Ah solid-state platform is intended for UAV projects that need a defined 29.6V electrical window and a larger installed energy class than compact 8S packs. The supplied specification sets the charge ceiling at 34.0V, the discharge cut-off at 20.0V, continuous discharge at 80.0A and maximum discharge at 280A. These are pack-level specification inputs for system review; aircraft output still depends on the propulsion load, current path, thermal conditions and approved interface.

Technical Specifications

Product visualization - black heat-shrink reference configuration

Energy and product role

The 8S 40Ah position is intended for aircraft programs that need a 29.6V platform and a calculated 1184Wh nominal energy input. The larger finished mass and 93 x 90 x 205mm envelope must be evaluated together with payload, center of gravity, retention and the removal path. The 400Wh/kg value belongs to the individual cell. Using 1184Wh and approximately 3.2kg gives a calculated complete-pack reference of about 370Wh/kg; this is a pack calculation, not a replacement for the supplied cell value.

The 29.6V 40000mAh Solid State UAV Battery is evaluated by the supplied electrical window, finished mass and aircraft-bay fit as one configuration rather than by capacity alone.

The 8S 40000mAh drone battery should therefore be compared by voltage acceptance, usable energy, mass, current path and bay fit rather than by capacity alone. The product page does not convert the nominal energy into flight time; aircraft power, payload, reserve policy, propulsion efficiency and weather remain project inputs.

Voltage, charge and current boundaries

The 29.6V 40Ah drone battery has a specified 34.0V charge cut-off and a 20.0V discharge cut-off. Confirm the aircraft power distribution, controller, avionics and charger profile against this full voltage window. Maximum charge current is 20.0A at 0.5C. Continuous discharge is 80.0A at 2C, while 280A at 7C is a maximum-discharge specification; neither figure alone defines acceptable whole-aircraft current.

Cable gauge, connector contact resistance, bend radius, temperature rise, cooling and duty cycle all influence the installed current path. Peak duration is not supplied in the specification and is not added here. The approved configuration should state the applicable maximum-current conditions before a flight or ground test.

Process illustration - connected electrical inspection

Cell basis and solid-state pack construction

The 40Ah solid state drone battery uses the supplied 9987191-40000mAh solid-state cell designation. Solid-state terminology here follows the product source; it does not by itself establish a universal safety certification or finished-pack test result. Incoming cell checks, insulation, tab joining, harness routing and strain relief should be controlled against the approved assembly record.

The 400Wh/kg 40Ah UAV battery wording refers to a pack built with cells carrying a 400Wh/kg individual-cell energy-density specification. customers should keep cell energy density, complete-pack mass and aircraft-installed energy as separate comparison fields when reviewing a large-energy UAV platform.

Process illustration - incoming cell inspection and assembly preparation

Mechanical fit and optional interfaces

Dimensional illustration - finished pack envelope and optional interface reference

The 40Ah UAV battery pack requires clearance around the body, cable exit and connector access. Confirm polarity, mating connector, harness pinout, retention, cooling and service access on the approved drawing. The battery bay must support the finished pack body directly; cable and balance leads must not be used as lifting or restraint members.

Process illustration - finished pack dimensional and interface inspection

Application fit

The proposed 8S solid-state pack can be evaluated for mapping, inspection, survey and other multirotor platforms that accept the stated 29.6V electrical window and can accommodate approximately 3.2kg plus the required installation hardware. Final suitability depends on aircraft load, average current, maximum current, payload, reserve requirement, battery position, center of gravity, cooling and charger compatibility. This page is an evaluation basis, not a universal aircraft-compatibility claim.

For the 29.6V 8S 40000mAh Solid State UAV Battery, the customers review should keep electrical, mechanical, thermal and packaging inputs together before the approved configuration is released.

For procurement screening, send the aircraft model or system voltage range, measured average and peak current, mission profile, maximum battery mass, bay dimensions, mounting direction, connector, charger and sample quantity. HSS Energy can then review whether this exact 8S platform or another voltage and capacity position better matches the aircraft.

The page uses process illustrations to explain how inspection, electrical connection, aging, final checking, storage and packaging decisions can be represented. They are visual workflow references, not factory records, test reports or proof of a specific batch result.

Aging and cycle-test connection

Aging evaluation should connect the main power leads and the balance harness to the same approved channel or matched test system. Each pack needs clear channel identification, cable support, temperature observation and a defined charge-discharge procedure. A pack resting on a shelf without electrical connections is storage, not an aging test. The supplied 500-cycle value is a product reference; the test method, depth of discharge, temperature and acceptance endpoint should be defined for the approved configuration.

Process illustration - connected aging and cycle-test setup

Customer-specific packaging and freight concept

Outer packaging is customized according to customer requirements. The illustration below shows only a packaging concept: foam support, protected cable recess, carton closure and freight staging may change with the approved battery configuration, quantity, destination and carrier instructions. It is not a shipping record or a fixed standard carton claim.

Packaging and logistics concept illustration - storage, sealing and freight staging

Request a configuration review

For the 29.6V 8S 40000mAh Solid State UAV Battery, send the aircraft requirements and battery-bay drawing before sample approval. Include the current profile, charger, connector, cable route, balance connection, mounting method, temperature range, packaging requirement and destination. The resulting configuration should keep electrical, mechanical, test and packaging decisions on one approved order record.

FAQ

Does 400Wh/kg describe the complete pack?

No. The supplied value is for individual cells. The calculated complete-pack reference is about 370Wh/kg from 1184Wh divided by approximately 3.2kg, and it should be treated as a calculation rather than a supplied finished-pack energy-density claim.

Is 280A the continuous discharge current?

No. The supplied continuous discharge rate is 80.0A at 2C. The 280A value is the maximum-discharge specification at 7C; its applicable duration and thermal conditions are not supplied.

What charger endpoint should be reviewed?

Review an approved 8S charging profile that stops at 34.0V and does not exceed the specified 20.0A maximum charge current. Confirm balance-harness pinout and polarity before connection.

Can XT90 and cable lengths be changed?

The source lists an optional XT90 power plug, 8AWG 150mm power lead, 22AWG 150mm balance harness and XH-9P (B0-B8) balance plug. Connector, length, polarity and exit direction should be frozen on the approved order drawing.