Description

NDBC163 | Pro-Range INR 21700 P42A 11.1V 8400mAh 3S2P 80A/100A Discharge Li-ion Drone Battery Pack

Product Overview

The P42A 11.1V 8400mAh Battery Pack from LOFTY Agrotech is a 3S2P (three cells in series, two parallel) pack built from premium 21700-size high-performance cells (the renowned Molicel INR-21700-P42A). With nominal voltage of 11.1 V, and nominal capacity of 8 400 mAh (8.4 Ah), this pack delivers excellent energy density, and is designed for drone applications that demand both high capacity and reliable discharge.
Because it uses P42A cells internally, the pack offers a low internal resistance, good thermal stability, and is suited for repeated charge/discharge cycles typical of UAV use.

This P42A 11.1V 8400mAh Battery Pack has been engineered by LOFTY Agrotech to meet rigorous demands: impedance-matched cells, customised connector options, compact dimensions (70 × 60 × 45 mm approx), and weight around 450 g.
For drone operators demanding more flight time with confidence in power delivery, the P42A 11.1V 8400mAh Battery Pack is a standout.

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Key Specifications Of P42A 11.1V 8400mAh Battery Pack

Here are the principal specifications of the P42A 11.1V 8400mAh Battery Pack:

• Nominal Voltage: 11.1 V (3S)

• Nominal Capacity: 8400 mAh (8.4 Ah)

• Configuration: 3S2P (three cells in series, two in parallel)

• Cells: High-performance 21700-format P42A cells from Molicel

• Max Charging Voltage: 12.6 V (3 × 4.2 V)

• Max Discharge Cut-off Voltage: 8.7 V (as recommended for drone use)

• Discharge Current Rating: 80 A continuous / 100 A peak (based on pack design)

• Charge Connector: 4-pin JST XH (customizable)

• Discharge Connector: Amass XT60 (or other connector by request)

• Dimensions: approx 70 mm (L) × 60 mm (W) × 45 mm (H)

• Weight: approx 450 g (without additional accessories)

• Operating Temperature: excellent performance even down to –20 °C, thanks to low-impedance cells

• Built with impedance-matched cells for performance consistency and reliability

These specs make the P42A 11.1 V 8400 mAh Battery Pack a strong candidate for drones where capacity, discharge current and temperature resilience are critical.

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Why Choose the P42A 11.1 V 8400 mAh Battery Pack

There are several reasons the P42A 11.1 V 8400 mAh Battery Pack stands out over many typical Li-Po or lower-grade Li-ion packs:

a) High-quality cell technology

The internal cells are the Molicel INR-21700-P42A, which are rated at ~4200 mAh per cell at the 21700 size and can supply high discharge currents with relatively low internal resistance. Batemo GmbH+3molicel.com+3BudgetLightForum.com+3
By using a 3S2P configuration, the pack leverages two parallel strings of P42A cells to give ~8400 mAh (2 × 4200 mAh). This gives you higher capacity while retaining the high-current capability of the cells.

b) Superior flight time

With 8.4 Ah at 11.1 V (~93 Wh nominal), the P42A 11.1V 8400mAh Battery Pack offers more energy than many comparable 3S packs – meaning longer flight time for the same drone payload or more margin for reserve.
With the correct setup, you gain more caching of energy and less frequent landings for battery swaps.

c) Better temperature and durability performance

The P42A cells have impressive specs: ability to discharge at high currents, very low impedance, stable performance over temperature, and good cycle life. molicel.com+2dnkpower.com+2
When built into a pack with matched cells and good assembly practices (as LOFTY AGROTECH does), you get a pack that resists puffing/bulging, maintains capacity over time, and handles colder conditions (which can affect drones in early morning or winter use) better than many hobby Li-Po packs.

d) Compact and lightweight for capacity

At ~450 g, the P42A 11.1V 8400mAh Battery Pack provides a strong capacity weight-ratio for its class. This means less penalty on payload or flight dynamics compared to heavier solutions, yet significantly more energy than typical 3S packs rated at maybe 5000-6000 mAh.

e) Custom connector/shape options

LOFTY AGROTECH offers customisation: size, shape, connector type, cell type/brand, and battery capacity can be tailored. So while the standard offering is the P42A 11.1V 8400mAh Battery Pack with JST charge and XT60 discharge, you can request other connectors, custom cables, and form-factors to integrate into specific drone frames or payload systems.

f) High Wh/kg compared to many Li-Po packs

Lithium-ion cylindrical cells like the P42A tend to offer higher energy density (Wh/kg) and better longevity than many high-C Li-Po packs when used properly. The P42A 11.1V 8400mAh Battery Pack thus gives both capacity and durability, making it a smart choice for pro-use drones.

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Typical Applications Of P42A 11.1V 8400mAh Battery Pack

The P42A 11.1V 8400mAh Battery Pack is an advanced power solution designed for a wide range of professional, industrial, and hobby-grade applications where performance, endurance, and reliability are critical. Engineered with high-grade Molicel P42A cells, this P42A 11.1V 8400mAh Battery Pack provides an ideal balance between high discharge capability, long cycle life, and superior energy density — making it the perfect choice for demanding drone and UAV operations.

One of its most common uses is in multirotor drones employed for surveying, agriculture, mapping, and industrial inspection. In these sectors, consistent flight duration and reliability are essential for operational success, and the P42A 11.1V 8400mAh Battery Pack delivers just that. Its excellent power retention ensures stable voltage under heavy loads, enabling smoother, longer flights and reliable power delivery to motors and electronics.

For FPV and racing drones, this battery pack offers an exceptional upgrade, combining high capacity with a powerful discharge rate that supports aggressive throttle bursts without voltage sag. Drone pilots who need both performance and endurance find this pack ideal for long-distance FPV runs or competitive racing environments.

In payload and cinematography drones, the P42A 11.1V 8400mAh Battery Pack ensures extended flight time — vital when carrying high-resolution cameras, LiDAR units, or precision sensors. Its excellent low-temperature performance also makes it dependable in outdoor conditions, whether during early-morning agricultural flights or cold-weather industrial inspections.

Beyond aerial platforms, this battery pack excels in custom RC and robotics applications that operate on a 3-cell (11.1V nominal) system. Engineers and developers seeking high-quality, consistent energy delivery often prefer the P42A 11.1V 8400mAh Battery Pack over generic hobby packs for its superior build quality, impedance matching, and safety standards.

For anyone seeking a capacity boost without upgrading to 4S or 6S configurations, the P42A 11.1V 8400mAh Battery Pack stands out as the ultimate upgrade for sustained performance and professional reliability.

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Using the Pack – Charging, Failsafe, Discharge Considerations

When operating the P42A 11.1V 8400mAh Battery Pack, following the right usage and maintenance guidelines ensures optimal performance, longevity, and safety. These best-practice tips help prevent over-discharge, extend cell life, and maintain consistent power delivery across multiple flights and charging cycles.

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a) Charging

Always charge the P42A 11.1V 8400mAh Battery Pack using a charger specifically designed for lithium-ion batteries. Avoid Li-Po-only chargers unless they explicitly support Li-ion chemistry. Charge the pack to 12.6 V (3 × 4.2 V per cell) for a full cycle. Keep charging current near 1C (~8.4 A) or lower to minimize stress, preserve efficiency, and significantly extend the P42A 11.1V 8400mAh Battery Pack’s cycle life.

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b) Discharge and Failsafe Voltages

When flying with the P42A 11.1V 8400mAh Battery Pack, proper failsafe voltage settings protect both drone and battery. Set the failsafe trigger around 9.6 V (approximately 20% capacity remaining) to provide sufficient return-to-home margin. Never let voltage drop below 8.7 V under load. These thresholds prevent deep discharge damage and maintain reliable performance for every P42A 11.1V 8400mAh Battery Pack cycle.

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c) Avoid Deep Discharge

To enhance longevity, avoid consistently depleting the P42A 11.1V 8400mAh Battery Pack to its minimum voltage. While occasional full cycles are acceptable, aim to land or return your drone when 20–30% charge remains. This preserves overall health, retains internal balance, and ensures stable capacity output from the P42A 11.1V 8400mAh Battery Pack over repeated missions.

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d) Cell Matching & Impedance

Each P42A 11.1V 8400mAh Battery Pack from LOFTY Agrotech is constructed with impedance-matched cells to maintain even voltage discharge. Uniform internal resistance prevents imbalance, heat buildup, and early cell degradation. Matched impedance delivers smoother power delivery under load and longer lifespan, ensuring every P42A 11.1V 8400mAh Battery Pack performs consistently across demanding drone applications.

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e) Temperature Considerations

The P42A 11.1V 8400mAh Battery Pack can operate efficiently from –20 °C to 60 °C, but temperature management is crucial. Ensure sufficient airflow during flight to prevent overheating. Avoid charging in freezing conditions or placing the pack near motors or ESCs that radiate heat. Stable thermal conditions guarantee optimal voltage retention and safeguard the P42A 11.1V 8400mAh Battery Pack from performance loss.

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f) Storage

When storing the P42A 11.1V 8400mAh Battery Pack, maintain a 40–60% state of charge and keep it in a cool, dry location. Avoid leaving it fully charged or completely depleted for long durations. Proper storage prevents voltage drift, capacity loss, and swelling, significantly extending the P42A 11.1V 8400mAh Battery Pack’s operational life and reliability.

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Comparisons – Why This Pack Outperforms Many Hobby Alternatives

Here’s how the P42A 11.1V 8400mAh Battery Pack stacks up:

• Many hobby 3-cell (11.1 V) Li-Po packs offer 5000-6000 mAh at high C-rates — but they may be heavier, less cycle-durable, and more susceptible to puffing or swelling over time.

• The P42A 11.1V 8400mAh Battery Pack gives ~8.4 Ah capacity, which is ~40-70% more than many standard packs.

• The use of high-grade cylindrical cells (P42A) means lower internal resistance, better thermal behaviour, and better durability.

• The custom pack build means connectors, dimensions, and capacity can be tailored — unlike commodity hobby packs that offer limited customisation.

• The combination of high capacity and professional build quality means this pack is particularly suited for demanding drone/RC applications rather than just casual use.

In short: if your aim is extended flight time, professional-grade reliability and customisation, the P42A 11.1V 8400mAh Battery Pack is a smart choice.

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Customisation Options with LOFTY AGROTECH

One of the major advantages of ordering through LOFTY AGROTECH is the ability to customise. For your project, you may request:

• Alternate connectors (e.g., XT90, XT60, EC5, custom plug)

• Custom charge port (e.g., 4-pin JST, balance lead, Anderson plug)

• Custom dimensions/shape or encasement to fit specific drone chassis

• Alternate cable lengths or gauge (for minimal voltage drop)

• Different capacity or series/parallel configuration (e.g., 4S, 6S using P42A cells)

• Branding or labelling to your specification

• Integration with BMS (battery management system) or monitoring sensors if required

Even though the base model is the P42A 11.1V 8400mAh Battery Pack, you have the flexibility to upgrade or adapt as needed for your system.

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Application Advice – Best Practices for Drone Integration

Ensure your electronics support 11.1 V nominal:

Before integrating the P42A 11.1V 8400mAh Battery Pack, verify that all onboard electronics—such as flight controllers, ESCs, receivers, and sensors—can safely handle its voltage range, from 12.6 V when fully charged to 8.7 V at minimum. Ensuring voltage compatibility prevents brownouts, component damage, and ensures the P42A 11.1V 8400mAh Battery Pack performs at optimal efficiency.

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Mounting & Cooling:

Secure the P42A 11.1V 8400mAh Battery Pack firmly within your drone’s frame using vibration-resistant mounts or straps. Prevent shaking or friction that could loosen connections mid-flight. Provide sufficient ventilation and airflow, as cylindrical lithium-ion cells such as P42A generate moderate heat under load. Proper cooling ensures consistent voltage delivery and extends the P42A 11.1V 8400mAh Battery Pack’s lifespan.

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Balance Leads / BMS:

Though the P42A 11.1V 8400mAh Battery Pack doesn’t always include a built-in BMS, integrating an external system to monitor voltage, temperature, and current is highly recommended. Balanced charging prevents cell over-stress, detects early faults, and maintains uniform performance. Installing a smart BMS enhances both safety and reliability, keeping your P42A 11.1V 8400mAh Battery Pack stable across hundreds of cycles.

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Failsafe Programming:

When programming failsafes for your drone, set voltage triggers appropriately for the P42A 11.1V 8400mAh Battery Pack—typically around 9.6 V for reserve power. This prevents deep discharge that could permanently damage the lithium-ion cells. A properly configured failsafe ensures your craft returns home safely and extends the P42A 11.1V 8400mAh Battery Pack’s usable life expectancy.

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Pre-flight Checks:

Before take-off, inspect your P42A 11.1V 8400mAh Battery Pack for visible wear, puffing, or damaged connectors. Confirm both charge and discharge cables are tightly fitted. Also check pack temperature and voltage levels. Consistent pre-flight inspection not only ensures operational safety but also preserves long-term health of the P42A 11.1V 8400mAh Battery Pack under repetitive flight cycles.

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Charging Schedule:

After completing a flight, always allow the P42A 11.1V 8400mAh Battery Pack to cool down to ambient temperature before initiating a recharge. Charging while hot increases cell stress and shortens lifespan. Maintain a steady charging current under 1C where possible. Following a disciplined schedule will protect and extend your P42A 11.1V 8400mAh Battery Pack’s performance consistency.

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Cycle Life Awareness:

The P42A 11.1V 8400mAh Battery Pack is engineered for endurance, yet every lithium-ion pack gradually loses capacity. Regularly monitor internal resistance and capacity retention through smart chargers or telemetry. Replace the pack when flight time decreases significantly. Practicing awareness ensures maximum reliability and safety of the P42A 11.1V 8400mAh Battery Pack in demanding UAV operations.

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Weight Balancing:

Since the P42A 11.1V 8400mAh Battery Pack offers higher capacity, it may slightly alter your drone’s weight distribution. Mount it near the center of gravity and rebalance payloads accordingly. Proper balancing reduces motor strain, prevents drift, and maintains stable flight control. Well-distributed weight allows the P42A 11.1V 8400mAh Battery Pack to deliver smooth, efficient power output.

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Safety & Handling Notes

When handling, charging and using the P42A 11.1V 8400mAh Battery Pack, adhere to these safety guidelines:

• Never short-circuit the pack terminals.

• Always use a charger compatible with lithium-ion (not Li-Po unless it supports Li-ion and correct voltage).

• Do not overcharge beyond 12.6 V.

• Do not discharge below ~8.0 V under load — though the safe minimum recommended for flying is ~8.7 V.

• If you notice the pack has puffed or swollen, stop using it immediately and dispose of it safely according to local regulations.

• Store at ~50% charge if not used for a long period, in a cool, dry place.

• Avoid mechanical damage (dents, punctures) to the pack.

• Keep away from extreme heat sources or direct flame.

• Use fire-safe charging bags or dedicated battery bays when charging indoors.

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Conclusion

In summary, the LOFTY AGROTECH P42A 11.1V 8400mAh Battery Pack offers a powerful, reliable, customisable solution for drone and RC users who demand more than standard hobby packs. With high-quality P42A cells, matched assembly, long flight potential and professional specs, this pack delivers both the energy you need and the build-quality you can trust.

If you’re planning a mission that demands reliable power, extended runtime, and minimal compromise, the P42A 11.1V 8400mAh Battery Pack is ready to deliver.

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