TRX2941X

Overview

The Traxxas NiMH 8.4V 3300mAh 7-Cell Power Cell Battery in hump configuration is the ideal power solution for RC enthusiasts across the UK looking for reliable, affordable performance. Whether you're new to the RC car hobby or returning after years away, this battery pack delivers consistent run times and excellent throttle response without the complexity of lithium alternatives. The Traxxas 3000-series Power Cell NiMH battery packs are engineered to provide excellent run times and punch at an affordable price point, making them a favourite choice amongst RC basher and weekend warriors throughout the UK.

Designed specifically for Traxxas RC models, this 8.4V battery combines proven NiMH chemistry with Traxxas' exclusive iD battery system technology, ensuring seamless compatibility and maximum safety. The hump-style configuration fits easily into most Traxxas chassis designs, and users report around half an hour of playtime under normal driving conditions, with longer run times possible when operating the vehicle in training mode or with more measured throttle control. For beginners stepping up from older RC equipment or anyone seeking a more manageable power delivery compared to LiPo alternatives, this battery represents the perfect balance of performance, value and ease of use.

This battery is compatible with any Traxxas ready to run RC model and many other vehicles that accept Traxxas iD connectors. The Power Cell range has become synonymous with entry-level and mid-range RC performance in the UK market, offering genuine Traxxas quality at a price that won't break the bank.

Key Features

• Traxxas iD Battery System — The exclusive iD technology automatically communicates with compatible Traxxas chargers to deliver optimised charging profiles, preventing overcharging and extending battery lifespan whilst ensuring your battery remains safe and ready for action every single time you charge.
• Low-Resistance Cells — Premium NiMH cells with minimal internal resistance provide instant power delivery and maximum voltage consistency throughout the discharge cycle, meaning your RC car maintains strong acceleration and performance right from the first drive until the battery is fully depleted.
• Flexible Silicone-Jacketed 12-Gauge Wire — Heavy-duty wiring with silicone insulation offers superior durability and flexibility compared to standard plastic-jacketed alternatives, protecting against damage during storage, transport and intense driving sessions whilst maintaining excellent electrical conductivity.
• Heavy-Duty Welded Tabs — The battery terminals are constructed with welded rather than soldered connections, delivering superior reliability and eliminating the risk of connection failure even under the stress of high discharge rates during aggressive driving or racing.
• Hump Configuration — The curved hump design (also called a pack-top configuration) places the battery at an optimised centre of gravity within your RC chassis, improving handling characteristics and weight distribution for better cornering and overall vehicle balance compared to flat pack designs.
• 3300mAh Capacity — This generous capacity provides extended run times compared to smaller batteries, allowing you to enjoy longer driving sessions before needing to recharge, making it excellent value for money and perfect for weekend bashers who want maximum playtime.
• 8.4V Output — The seven-cell NiMH configuration delivers 8.4 volts, providing the optimal power level for brushed motor Traxxas models whilst remaining significantly more manageable and controllable than 2S LiPo alternatives, making this an ideal stepping stone battery for developing RC driving skills.

Technical Performance

The Traxxas NiMH 8.4V 3300mAh 7-Cell Power Cell Battery represents the culmination of decades of battery engineering expertise from one of the world's leading RC manufacturers. The seven individual NiMH cells are engineered to work in perfect harmony, delivering consistent voltage output throughout the discharge cycle — a characteristic that NiMH chemistry excels at compared to other battery technologies. The low-resistance cells ensure minimal voltage sag even under high current draw, meaning your RC car maintains strong acceleration and consistent performance whether you're just starting out or pushing hard on a track. The flexible silicone-jacketed 12-gauge wire carries substantial current without generating excessive heat, whilst the heavy-duty welded tabs ensure that every amp flows reliably from the battery pack into your Traxxas model's power system. At 3300mAh capacity, this battery strikes an excellent balance between weight and run time — substantial enough to deliver half an hour or more of playtime during typical driving sessions, yet light enough not to adversely impact your vehicle's acceleration or handling. The hump configuration places the weight optimally within your chassis, improving centre of gravity and enhancing cornering performance. With dimensions of 139mm length, 42mm height and 48mm width, the battery fits seamlessly into Traxxas chassis designs including the Stampede, Slash, Rustler, and numerous other models. The Traxxas iD system automatically identifies this battery and communicates with your charger to deliver the perfect charge rate every time, eliminating guesswork and protecting your investment for years of reliable service.

What's in the Box

• Traxxas NiMH 8.4V 3300mAh 7-Cell Power Cell Battery with Traxxas iD connector (hump configuration)

What You Need to Complete

• Traxxas-compatible RC model with Traxxas iD battery connector port
• Traxxas iD-compatible charger (such as the Traxxas EZ-Peak Fast Charger) for safe charging and optimal battery management

Frequently Asked Questions

• Is the Traxxas NiMH 8.4V 3300mAh battery good for beginners and returning RC enthusiasts? — Absolutely. This battery is specifically designed as an entry-level and intermediate power solution. The 8.4V output from seven NiMH cells provides significantly more manageable power delivery compared to 2S LiPo batteries, making it ideal for drivers who are new to RC or returning to the hobby after many years. Users report that even new drivers often need to engage training mode to prevent overpowering their vehicle, indicating that this battery provides genuinely accessible performance for all skill levels.
• How long does this battery last per charge? — Under normal driving conditions with moderate throttle use, you can expect approximately 30 minutes of playtime per charge. This can be extended to longer periods if you drive more conservatively or engage your vehicle's training mode for smoother acceleration. More aggressive driving will reduce runtime accordingly, but the 3300mAh capacity ensures substantial playtime regardless of driving style.
• What is the Traxxas iD battery system and why does it matter? — The Traxxas iD system is an intelligent battery identification and management technology that automatically communicates between your battery pack and compatible chargers. When you plug this battery into a Traxxas iD charger, the system automatically recognises the battery type, capacity and cell count, then delivers the optimised charge profile. This prevents overcharging, extends battery lifespan, and ensures your battery is always in perfect condition. It takes the guesswork out of charging and makes the entire experience safer and more rewarding.
• Which Traxxas RC models are compatible with this battery? — This battery features the Traxxas iD connector and 8.4V output, making it compatible with numerous Traxxas models including the Stampede 4x4, Slash 4x4, Rustler 4x4, Bandit, and many other brushed motor Traxxas vehicles. Always verify your specific model's battery requirements before purchasing, but this is one of the most widely compatible batteries in the Traxxas lineup.
• How does the hump configuration differ from flat batteries? — The hump (or pack-top) design curves at the top rather than remaining completely flat. This design places the battery's centre of gravity at an optimised position within your RC chassis, improving overall weight distribution, handling characteristics and cornering performance. The hump shape also maximises internal packing density, allowing for 3300mAh of capacity in a compact footprint that fits easily into most Traxxas chassis designs.
• What makes the low-resistance cells important? — Low-resistance cells minimise voltage sag — the temporary voltage drop that occurs when the battery supplies high current to the motor. This means your RC car maintains strong, consistent acceleration and performance throughout the entire drive session, rather than experiencing gradually weakening power as the battery discharges. This is particularly important for maintaining good driving response and control.
• Is this battery safe to use? — Yes. NiMH batteries are inherently safer than lithium-based alternatives, with no risk of the thermal runaway issues associated with LiPo batteries. The Traxxas iD system provides additional safety by automatically detecting the battery and preventing overcharging. Always use a compatible Traxxas iD charger and follow basic battery safety practices such as avoiding puncture and storing in a cool location.
• Can I use this battery with non-Traxxas RC models? — Only if those models feature Traxxas iD connectors and are designed to accept 8.4V NiMH batteries. Most non-Traxxas vehicles use different connectors (such as XT60, EC3, or XT90) and may have different voltage requirements. Check your vehicle's specifications before attempting to use this battery.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas NiMH 8.4V 3300mAh 7-Cell Power Cell Battery, Hump TRX2941X today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.