Quick Fit Check
The CNHL Black Series 4000mAh 11.1V 3S 65C LiPo Battery with EC5 Plug is a compact, responsive 3S battery for RC users who want more punch than a basic pack without adding the weight of a larger 5000mAh battery. With 4000mAh capacity, 11.1V 3S voltage, 65C discharge output, 10AWG wire, and an EC5 connector, this pack is a strong option for selected RC cars, trucks, boats, airplanes, and adapter-supported Traxxas 4-Tec 2.0 Nissan 240SX Brushless setups.
This battery is best used when your model supports 11.1V 3S LiPo power, has enough battery space for a 156 × 46 × 24mm pack, can handle an approximately 358g battery, and uses an EC5 connector or a properly rated adapter. EC5 and IC5 are often searched together in larger RC power systems, but this battery does not provide Spektrum Smart battery data.
Product Specifications
| Capacity |
4000mAh |
| Voltage (S/cell) |
11.1V / 3S / 3 Cell |
| Discharge Rate (Continuous/Burst) |
65C / 130C |
| Output Connector |
EC5 Plug |
| Dimensions (L × W × H) |
156 × 46 × 24mm |
| Weight |
Approx. 358g |
| Charge Rate |
5C Max |
| Balance Connector |
JST / XH |
| Wire Gauge |
10AWG |
| Stock Number |
400653BKEC5 |
Core Description
The CNHL Black Series 4000mAh 3S 65C LiPo battery is designed for RC users who want a lighter and more responsive 3S setup than a typical 5000mAh pack. The 4000mAh capacity gives useful runtime for cars, boats, airplanes, and general 3S applications, while the 65C discharge rating provides stronger throttle response than many entry-level 3S batteries.
This pack is especially useful when weight and chassis feel matter. In low RC cars, drift-style vehicles, boats, and aircraft, a lighter 3S battery can help preserve handling, acceleration response, hull balance, or center of gravity. It is not simply about using the largest possible pack; in many models, the better choice is the battery that gives enough runtime while keeping the model sharp and predictable.
The EC5 plug and 10AWG wiring make this battery relevant for higher-current 3S setups. EC5 is commonly used on larger RC cars, boats, trucks, and power systems where smaller connector formats may not be ideal. IC5 users may also search for similar battery options, but this battery is not a Spektrum Smart battery and does not provide Smart battery telemetry.
Traxxas 4-Tec 2.0 Nissan 240SX Brushless Fitment Note
The CNHL Black Series 4000mAh 11.1V 3S 65C LiPo Battery with EC5 Plug is a strong 3S option for drivers who want a lighter, more responsive setup in the Traxxas 4-Tec 2.0 Nissan 240SX Brushless. Compared with heavier 3S packs, this 4000mAh setup can help keep the low 4tec chassis sharper during braking, corner entry, and throttle-on acceleration.
This makes it especially useful for drivers who want more speed and punch than a 2S battery, but do not want the extra mass of a larger 5000mAh 3S pack. On a low on-road platform like the Traxxas 4 tec / 4tec chassis, battery weight can affect steering feel, body roll, traction, and how quickly the car changes direction.
Important plug note: this battery uses an EC5 plug. The Traxxas 4-Tec 2.0 Nissan 240SX Brushless uses a Traxxas High-Current connector, so this battery does not plug directly into the car. To use it, you need an EC5-to-TRX battery plug adapter or a proper connector conversion. Always confirm adapter rating, polarity, wire clearance, and battery strap fitment before running.
For the complete 2S and 3S setup guide, including direct TRX plug batteries and adapter-supported options, visit the Traxxas 4-Tec 2.0 Nissan 240SX Brushless battery collection.
Compatible RC Car, Boat, and Aircraft Applications
The CNHL Black Series 4000mAh 11.1V 3S 65C LiPo Battery with EC5 Plug can be used across selected 3S RC models where voltage, battery tray size, connector setup, and weight are suitable. It is relevant for RC car users who want a lighter high-output 3S pack, boat users who need a compact 3S battery, and aircraft pilots who need a practical 11.1V battery with strong discharge support.
In RC cars and trucks, it can be considered for Traxxas, Axial, and similar 3S-compatible platforms when tray size and connector setup match. For RC boats, it may suit selected Kyosho-style Hurricane series or other 3S boats where EC5, battery weight, and hull balance are appropriate. In aircraft, it can be used in selected E-flite, Hangar 9, sport, and jet-style models when battery bay fitment, center of gravity, and ESC rating are confirmed.
Because 3S applications vary widely, model-name compatibility should never be assumed from brand alone. Always check the manual, ESC voltage rating, connector type, tray size, wire direction, and actual installation space before use.
Why Choose a 4000mAh 3S 65C EC5 Battery?
A 4000mAh 3S LiPo battery makes sense when you want more runtime than compact 2200mAh or 3300mAh packs, but still want a lighter and more agile setup than many 5000mAh batteries. This is especially important in low on-road cars, drift-style builds, boats, and aircraft where balance affects real performance.
The 65C discharge rating gives this pack a stronger performance profile than many basic 3S batteries. It supports cleaner throttle response during acceleration, launch, corner exit, and repeated high-load use, while still keeping the battery in a manageable size and weight class.
The EC5 connector is another reason this pack is useful for higher-current 3S platforms. Compared with smaller connector types, EC5 is a common direction for models that need stronger current handling, though final suitability always depends on your actual ESC, motor, current draw, and installation quality.
EC5 Plug and IC5 Search Compatibility Notes
This battery comes with an EC5 plug, a connector type commonly used in larger RC cars, boats, trucks, and high-current electric systems. EC5 and IC5 are often searched together because they appear in similar power-system discussions and model recommendations.
This battery is not a Spektrum Smart battery and does not provide Smart battery data. If your model uses an IC5-equipped ESC, confirm physical connector fit, polarity, current rating, wire clearance, and charger setup before use.
Applications
- Traxxas 4-Tec 2.0 Nissan 240SX Brushless with EC5-to-TRX adapter or connector conversion
- 3S RC cars and trucks where lighter battery weight improves handling
- Selected Traxxas, Axial, and similar 3S-compatible platforms
- Selected Kyosho Hurricane-style RC boat setups where EC5 and tray fitment match
- E-flite, Hangar 9, sport airplane, and jet-style aircraft where 3S battery size and CG are suitable
- General 11.1V RC systems using EC5 connectors
- Custom 3S setups needing a 4000mAh pack with stronger discharge output
What to Check Before Buying
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Voltage: Your model must support 11.1V 3S LiPo power.
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Connector: This battery uses an EC5 plug. Use a properly rated adapter or connector conversion if your ESC uses TRX, XT60, T/Dean, IC3, IC5, or another connector.
-
Battery size: Confirm your tray or battery bay can fit 156 × 46 × 24mm.
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Weight: At approximately 358g, this pack is lighter than many 5000mAh 3S packs but should still be checked for balance.
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Adapter use: For Traxxas 4-Tec 2.0 Nissan 240SX Brushless, confirm EC5-to-TRX adapter rating, polarity, wire clearance, and battery strap fitment.
-
Aircraft and boat use: Check center of gravity, hull trim, cooling, water protection, and secure battery retention before running.
-
Charging: Use a compatible 3S LiPo balance charger with JST-XH balance support.
FAQ
What is this 4000mAh 3S LiPo battery best used for?
It is best used in selected 3S RC cars, trucks, boats, airplanes, and adapter-supported Traxxas 4-Tec 2.0 Nissan 240SX Brushless setups where a lighter, responsive 3S battery is preferred over a larger 5000mAh pack.
Can this battery work in the Traxxas 4-Tec 2.0 Nissan 240SX Brushless?
Yes, it can be used as an adapter-supported 3S option if tray size, weight, and wiring are suitable. Because this battery has an EC5 plug and the 4-Tec uses a Traxxas High-Current connector, you need a properly rated EC5-to-TRX adapter or connector conversion.
Is this battery direct plug-and-play for Traxxas 4-Tec 2.0?
No. This battery uses an EC5 plug, so it is not direct plug-and-play with the Traxxas High-Current connector. Use a suitable adapter or connector conversion and confirm polarity before running.
Is 4000mAh better than 5000mAh for the 4-Tec / 4 tec / 4tec chassis?
It depends on your goal. A 4000mAh pack is usually lighter and can keep the chassis more responsive. A 5000mAh pack usually gives more runtime but may feel heavier in braking, cornering, and direction changes.
Is EC5 the same as IC5?
No. EC5 and IC5 are often searched together because they appear in similar larger RC power systems, but this battery has an EC5 plug and does not include Spektrum Smart battery data.
Can this battery be used in RC airplanes or boats?
Yes, if the aircraft or boat supports 3S power and can fit the pack safely. Always check battery bay size, center of gravity, hull balance, connector type, and ESC rating before use.
Notice
- Only use a compatible LiPo balance charger designed for 3S LiPo batteries.
- Stop charging immediately if any cell exceeds 4.2V.
- This battery has an EC5 plug, but it is not a Spektrum Smart battery and does not provide Smart battery telemetry.
- Check voltage, connector type, adapter rating, battery tray size, wire clearance, ESC rating, and model balance before purchase.
- For adapter use, confirm polarity and current rating before connecting to the ESC.
- Inspect the battery surface, connector, wires, balance lead, and cell voltage before first use.
- Do not use the battery if it becomes swollen, damaged, overheated, or physically deformed.
- For RC boats, keep wiring secured and protected from water exposure, rotating parts, and sharp hull edges.
- For long-term storage, store the battery at proper storage voltage in a cool and dry place.
- If a new battery does not initially hold full performance, several normal balanced charge and discharge cycles may help stabilize the cells.
- Always follow standard LiPo safety procedures during charging, storage, transport, and use.
