Overlander 7.4V 55C 3250mAh LiPo Battery Hard Case Sport Track Pack 2581

Overview

The Overlander 7.4V 55C 3250mAh LiPo Sport Track Pack – 2581 is engineered to provide stable, efficient, and powerful energy delivery for RC enthusiasts who demand high performance and long-lasting reliability from their batteries. Whether you're a competitive racer pushing your RC car to the limit or a weekend hobbyist enjoying extended track sessions, this hard-cased LiPo battery is specifically designed to deliver the power and consistency you need. Built to the exacting standards of Overlander Batteries, this 2S LiPo pack combines impressive discharge rates with durable construction, making it an ideal choice for drivers across the UK who want dependable performance without compromise.

This battery is perfectly suited for a wide range of RC vehicles including RC cars, buggies, monster trucks, touring cars, and short course models. The Sport Track Pack designation reflects its purpose: delivering reliable, high-output energy for competitive and recreational racing applications. With its 3250mAh capacity and robust 55C burst discharge rating, the Overlander 2581 ensures that your RC model has access to the power it needs for rapid acceleration, sharp cornering, and sustained high-speed performance throughout extended driving sessions. The hard case construction provides enhanced durability against impacts and rough handling, making this battery equally at home in the pit lane or the garage.

Designed for drivers who want dependable performance with the flexibility to handle demanding RC conditions, the Overlander 7.4V 55C 3250mAh LiPo Sport Track Pack combines power, safety, and value in one accessible yet high-quality package. RC Model Shop is proud to stock this recognised Overlander battery, and our team of experienced RC enthusiasts can help you determine whether this pack is the perfect match for your specific model and driving style.

Key Features

• 3250mAh Capacity — This capacity provides the energy needed for extended RC sessions, ensuring fewer pit stops and more time enjoying your hobby. The balance of power and runtime means hobbyists benefit from lengthy practice sessions while competitive racers get consistent power delivery to maintain peak performance throughout races without premature voltage sag.
• 7.4V (2S) Configuration — The 2-cell setup is one of the most popular voltage standards for RC cars, buggies, and trucks, offering wide compatibility across countless models. This mid-range voltage delivers reliable power with manageable handling characteristics that work equally well for beginners and experienced users, and it balances raw power output with the manageable stress on your model's electronics.
• 55C Burst Discharge Rating — This standout specification provides strong current output that ensures rapid acceleration, powerful bursts of speed, and responsive handling characteristics. The 55C burst rating is your battery's turbo mode, delivering extra juice for those critical moments when you need peak power, such as during tight cornering, sudden climbs, or all-out sprints off the start line. This also helps maintain efficiency under heavy loads, reducing voltage drops and heat build-up during intense driving sessions.
• 30C Constant Discharge Rating — Whilst the burst rating gives you peak performance for short bursts, the 30C constant discharge rating tells you what the battery can handle continuously without stress. This provides reliable, sustained power output throughout your driving session, ensuring your model performs consistently until the battery approaches full discharge.
• Hard Case Design — Unlike soft-pack LiPo batteries, this hard-cased construction provides enhanced durability and protection against impacts, vibrations, and rough handling typical of competitive RC racing. The rigid casing protects the delicate cells inside from damage, extends the battery's operational lifespan, and makes it safer to transport and store in your RC kit.
• Deans T-Connector (Standard) — This battery arrives ready-fitted with a Deans connector, one of the most common connectors in RC racing. If you need alternative connector options such as EC3, XT60, or Traxxas connectors, Overlander offers these upon request, ensuring maximum compatibility with your specific RC setup.
• JST-XH Balance Connector — The included balance connector allows you to use a compatible LiPo balance charger, which monitors and adjusts each individual cell during charging. This ensures your battery cells remain perfectly balanced, maintains consistent performance, extends battery life, and is essential for safe LiPo operation.
• 12AWG Wire Gauge — The thick-gauge wiring enables efficient power delivery with minimal resistance, ensuring that the maximum available current reaches your motor and speed controller without unnecessary voltage loss or heat generation.
• Maximum Current Ratings — With a maximum constant current of 97.5A and maximum burst current of 178.75A, this battery can handle even the most demanding RC setups. These impressive current ratings ensure your motor and ESC never suffer from power starvation, even during the most aggressive acceleration and cornering manoeuvres.

Technical Performance

The Overlander 7.4V 55C 3250mAh LiPo Sport Track Pack delivers impressive technical performance across every metric that matters to serious RC drivers. At 181 grams with dimensions of 138 x 46 x 22mm, this battery strikes an excellent balance between capacity and weight, ensuring sufficient power delivery without significantly impacting your model's weight distribution or handling characteristics. The 24.05Wh energy content provides substantial runtime whilst remaining lightweight enough for racing applications where every gram counts towards responsiveness and performance. The engineering behind this pack reflects Overlander's commitment to quality: the hard case construction is reinforced through repeated testing under competitive RC racing conditions, the balance connector system ensures cell voltage harmony, and the heavy-gauge wiring minimises internal resistance. The 55C burst discharge capability means this battery can deliver nearly 179 amps during peak demand moments, whilst the 30C constant rating provides reliable sustained power for extended drives. These specifications combine to create a battery that maintains consistent voltage output throughout most of its discharge cycle, ensuring your RC model performs reliably from the moment you launch off the start line until the battery approaches its safe minimum voltage limit.

What's in the Box

• Overlander 3250mAh 7.4V 2S 55C Hard Case LiPo Battery
• Deans (T-plug) Connector (pre-fitted)
• JST-XH Balance Connector Lead

What You Need to Complete

• Compatible LiPo balance charger (essential for safe charging)
• Battery voltage checker or low voltage alarm (recommended for monitoring cell health)
• LiPo storage bag or fireproof container (recommended for safe storage)
• RC model compatible with 7.4V 2S LiPo batteries

Frequently Asked Questions

• Is the Overlander 7.4V 55C 3250mAh LiPo suitable for beginners? — Yes, this battery is suitable for beginners as well as experienced racers. The 7.4V (2S) voltage is one of the most common standards in RC racing, offering good power without overwhelming newer drivers. However, beginners must understand that LiPo batteries require a dedicated LiPo charger, proper storage practices, and careful handling. Never use a standard charger designed for older NiMH batteries, as this could damage the LiPo or create safety hazards. If you're new to LiPo batteries, we recommend familiarising yourself with the comprehensive LiPo safety information available and consulting with our RC Model Shop team before your first charge.
• What charger do I need for the Overlander 2581 LiPo battery? — You must use a compatible LiPo balance charger that is specifically set to LiPo mode. The balance charger monitors the JST-XH balance connector to ensure each of the two cells charges equally, preventing cell imbalance which can reduce performance and create safety risks. A charger with built-in voltage cut-off is essential to prevent overcharging beyond the safe maximum of 4.2V per cell. Standard chargers designed for NiMH or other battery chemistries are not suitable and could seriously damage the battery or pose fire hazards.
• How long will the Overlander 2581 battery last on a single charge? — Runtime depends entirely on your RC model's motor, gearing, driving style, and terrain. The 3250mAh capacity provides substantial energy for extended sessions, but a high-powered racing setup will drain the battery faster than a casual touring car. The 55C discharge capability supports high-drain applications, making this battery ideal for competitive racing where sustained power output is critical. Most drivers can expect 15 to 30 minutes of mixed driving before the battery reaches its safe minimum voltage of 3.0V per cell.
• What does the 55C burst rating mean for my RC car? — The 55C burst rating indicates this battery can deliver nearly 179 amps of current in short bursts, providing your model with explosive acceleration and responsive handling during the most demanding moments of racing. This burst capability is your battery's turbo mode—it's there for the few seconds when you need maximum power, such as during tight cornering, sudden climbs, or all-out sprints. The 30C constant discharge rating tells you what the battery can sustain continuously without stress, whilst the 55C burst is the bonus power that kicks in for brief, intense moments when you really need it.
• Is the Overlander 7.4V (2S) compatible with my RC model? — The 7.4V (2S) voltage is compatible with most RC cars, buggies, and trucks on the market, but you must verify compatibility with your specific model before use. Check your RC model's manual or manufacturer specifications to confirm it supports 7.4V LiPo batteries and that your speed controller (ESC) and motor are rated for this voltage. Using incorrect voltage can damage electronics or create safety hazards. If unsure, contact the RC Model Shop team for guidance on compatibility.
• How should I store the Overlander 2581 LiPo battery? — Store your battery at approximately 50% charge, which is around 3.7V to 3.85V per cell. This resting voltage minimises stress on the cells during storage and keeps them healthy and ready for action. Store the battery in a cool, dry place away from direct sunlight, hot cars, or cold environments where temperature fluctuations can degrade the chemistry. Never store a fully charged or completely drained battery for extended periods. If you're not using your battery for several months, check its charge every couple of months and top it back up to that 50% sweet spot. This prevents the cells from becoming damaged and ensures your battery is always ready when you are.
• What is the difference between this Overlander battery and other LiPo packs? — The Overlander 7.4V 55C 3250mAh Sport Track Pack combines several distinguishing features: the hard case construction offers superior durability compared to soft-pack alternatives, the 55C burst rating provides impressive power delivery for racing applications, the 3250mAh capacity balances runtime with weight, and the availability of multiple connector options ensures compatibility with virtually any RC setup. Overlander's Sport Track range is designed to offer excellent value without compromising on performance, making it an accessible choice for both competitive racers and recreational hobbyists.
• Can I use this battery in a brushless RC car? — Yes, the Overlander 7.4V 2S LiPo is compatible with brushless RC cars, provided your brushless motor and speed controller are rated for 7.4V (2S) operation. Brushless motors and modern ESCs are designed to work with LiPo batteries and can take full advantage of the power delivery this pack provides. Always verify your specific model's specifications to ensure compatibility before using this battery.
• Why do I need a balance charger for this LiPo battery? — LiPo batteries are picky about charging and require a special balance charger because the chemistry is sensitive to incorrect voltage. A balance charger uses the JST-XH balance lead to monitor each individual cell in the 2S pack and charge them equally. This ensures both cells reach exactly the same voltage, preventing cell imbalance which can lead to reduced capacity, inconsistent performance, and safety hazards. Balanced cells also extend battery lifespan significantly. Using a regular charger or an incorrect charging mode is risky and can lead to overcharging, cell imbalance, overheating, or even fires. Always use a proper LiPo balance charger set to LiPo mode.
• What is the maximum safe voltage for charging this battery? — Each cell in this 2S LiPo pack has a maximum safe charging voltage of 4.2V per cell, meaning the fully charged pack reaches 8.4V. Never charge beyond this voltage, as overcharging can cause cells to swell, lose capacity, or fail catastrophically. Your LiPo balance charger should have a built-in voltage cut-off that automatically stops charging when the battery reaches safe voltage, but always monitor the charging process and never leave charging unattended.
• What is the minimum safe voltage for using this battery? — Do not discharge this battery below 3.0V per cell, which means stopping use at 6.0V for this 2S pack. Discharging below this voltage can permanently damage the cells, preventing the battery from holding a charge and creating safety hazards. Since LiPo batteries don't have built-in protection circuits, it's your responsibility to monitor voltage and stop using the battery before it reaches the danger zone. A voltage checker or low voltage alarm is a worthwhile investment to help you track battery health.

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 Overlander 7.4V 55C 3250mAh LiPo Sport Track Pack – 2581 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.