Elevate your long-range FPV experience with the DOGCOM 4000mAh 6S1P Li-Ion Battery, engineered for pilots who value efficient power delivery, low weight, and dependable endurance.

Built with premium Samsung INR21700-40T cells, this battery is designed for efficient cruising, cinematic flights, and long-range FPV platforms where smooth throttle management and extended flight time are more important than aggressive punch-outs.

This pack is well suited for 5" to 7.5" long-range and cinematic platforms such as the Nazgul5, Evoque F5/F6, DC5, Chimera7, and CineLR 7, depending on the setup, payload, propellers, and flying style.

Important: This is a Li-Ion endurance battery, not a high-discharge freestyle LiPo. It is not intended for aggressive freestyle, racing, repeated full-throttle punch-outs, or setups that draw high current for long periods. For those applications, use a high-discharge LiPo pack.

Key Benefits

High-quality Samsung INR21700-40T cells

4000mAh capacity for efficient long-range flying

6S1P configuration for compact size and low weight

Excellent energy density compared with typical high-discharge LiPo packs

XT60 main connector and JST-XHR balance plug

Ideal for cruising, cinematic flying, long-range FPV, and endurance-focused builds

Approx. 430g pack weight

Estimated flight time around 12–16 minutes in typical long-range setups

Actual flight time depends heavily on drone type, total weight, propellers, motors, wind, altitude, temperature, flying style, payload, battery condition, and landing voltage.

Li-Ion Battery Behaviour

Li-Ion batteries behave differently from standard FPV LiPo batteries.

Compared with high-discharge LiPo packs, Li-Ion batteries usually offer better energy density and longer cruising efficiency, but lower high-current capability and more voltage sag under load.

This battery is best used with smooth throttle control and efficient long-range flying. It may feel weaker than a LiPo during hard acceleration or high-throttle manoeuvres. This is normal for Li-Ion chemistry and does not automatically mean the battery is defective.

Betaflight and OSD Voltage Warning Note

Most Betaflight and FPV OSD low-voltage warnings are commonly configured around standard LiPo behaviour.

When using Li-Ion batteries, voltage warnings may need to be adjusted by an experienced user. Li-Ion packs can safely operate with a different voltage curve than LiPo packs, but they must still not be over-discharged.

Always monitor voltage per cell, consumed mAh, voltage sag under load, and resting voltage after landing. Do not rely only on default LiPo warning settings when flying Li-Ion packs.

Technical Specifications

Cell type: Samsung INR21700-40T Li-Ion

Configuration: 6S1P

Capacity: 4000mAh / 4.0Ah

Nominal cell voltage: 3.6V

Nominal pack voltage: 21.6V based on Samsung cell specification

Common FPV voltage reference: 22.2V based on 3.7V/cell convention

Nominal energy: approx. 86.4Wh based on 3.6V/cell

Common FPV energy reference: approx. 88.8Wh based on 3.7V/cell

Maximum charge voltage: 4.20V per cell

Maximum full pack voltage: 25.2V

Discharge cut-off voltage: 2.5V per cell absolute cell specification limit

Recommended end-flight voltage: approx. 2.9–3.1V per cell resting voltage, depending on load, setup, and safety margin

Cell-rated continuous discharge: 35A without temperature cut

Cell-rated maximum discharge with temperature protection: 45A with 80°C cell surface temperature cut

Recommended practical continuous current for long-range FPV: approx. 20–25A

Calculated continuous C-rate at 35A: approx. 8.75C

Calculated temperature-protected C-rate at 45A: approx. 11.25C

Calculated practical long-range C-rate at 20–25A: approx. 5C–6.25C

Connector: XT60 main connector

Balance connector: JST-XHR

Dimensions: 43 × 66 × 77mm

Weight: approx. 430g

Recommended ambient operating range for best performance and longevity: 15°C to 35°C

Cell Temperature Guidance

Charging ambient temperature: 0°C to 45°C

Discharging ambient temperature: –20°C to 60°C

Charging surface temperature range: 0°C to 50°C

Discharging surface temperature range: –20°C to 80°C

For best battery life, avoid charging or flying when the battery is very cold or very hot. Cold Li-Ion cells can show stronger voltage sag, and high temperatures can accelerate ageing or cause unsafe behaviour.

Charging Guidelines

Always use a Li-Ion compatible balance charger.

Charge mode: Li-Ion / lithium-ion balance charge

Maximum charge voltage: 4.20V per cell / 25.2V total for 6S

Recommended charge rate: 1C or lower, up to 4A for this 4000mAh pack

Maximum recommended charge current: 6A unless otherwise approved by the pack manufacturer

Do not charge above 4.20V per cell.

Do not charge unattended.

Do not charge near flammable materials.

Do not charge below 0°C.

Do not charge a damaged, swollen, overheated, crashed, over-discharged, or suspicious battery.

Stop charging immediately if the battery becomes hot, swollen, smells unusual, shows imbalance, or behaves abnormally.

Discharge and Landing Guidelines

This battery is designed for efficient cruising, not extreme current draw.

Recommended end-flight voltage: approx. 2.9–3.1V per cell resting voltage

The 2.5V per cell value is the absolute cell discharge cut-off specification, not a normal FPV landing target.

Voltage under load during flight can be lower than resting voltage after landing.

Avoid repeatedly discharging the pack to very low voltage, as this can reduce cycle life and increase the risk of cell imbalance or damage.

If voltage sag is excessive, land safely and check whether the battery is suitable for the drone, payload, propeller choice, and flying style.

Storage Guidelines

Recommended storage voltage: 3.7–3.85V per cell

Do not store fully charged for long periods.

Do not store empty or deeply discharged.

Disconnect the battery from the drone, charger, or any device after use.

Store in a cool, dry place, ideally between 15°C and 25°C.

Avoid heat, direct sunlight, freezing temperatures, moisture, and physical damage.

Store in a fire-resistant battery bag, LiPo-safe storage bag, or suitable fire-resistant container.

Check the battery periodically during long-term storage.

If swelling, leakage, abnormal smell, corrosion, physical damage, or abnormal cell imbalance is detected, stop using the battery immediately and dispose of it safely according to local regulations.

Package Includes

1× DOGCOM 4000mAh 6S1P Li-Ion Battery with XT60 connector

Safety Disclaimer

Lithium batteries must be handled with care. Improper charging, over-charging, over-discharging, short-circuiting, overheating, physical damage, puncturing, disassembling, or incorrect use can cause fire, explosion, injury, or property damage.

Only use a compatible lithium-ion balance charger and always follow the charger instructions, battery label, and product specifications.

The user is responsible for selecting a suitable battery for their aircraft and operating it within safe voltage, current, temperature, and handling limits.

Do not use this battery if it has been crashed, punctured, swollen, overheated, over-discharged, shorted, exposed to water, or physically damaged.

By purchasing and using this product, the user accepts responsibility for safe handling, charging, storage, transport, and operation.