Overlander Balance Extension Lead Pack 2s 3s 4s 5s 6s LiPo JST-XH 2143

Overview

The Overlander Balance Extension Lead Pack 2s–6s LiPos (Model 2143) is an essential accessory for any RC enthusiast who operates lithium polymer batteries. Whether you're charging 7.4V 2S, 11.1V 3S, 14.8V 4S, 18.5V 5S, or 22.2V 6S LiPo batteries, this versatile extension lead pack provides the flexibility and safety needed for convenient and secure charging sessions. Designed with the RC hobby community in mind, this product simplifies battery maintenance and charging across a wide variety of RC models, from RC cars and RC boats to RC helicopters, drones and RC planes. The pack includes five individual JST-XH balance extension leads, making it an affordable solution for expanding your RC charging capabilities without breaking the bank.

As an RC enthusiast in the UK, you understand the importance of reliable battery management. The Overlander Balance Extension Lead Pack delivers professional-grade quality at an accessible price point, making it suitable for everyone from beginners discovering their first RC car to experienced racers maintaining complex multi-battery setups. Overlander is a trusted brand recognised for quality RC batteries and accessories, and this extension lead pack upholds those standards with meticulous attention to construction, safety and performance. The pack's compatibility with JST-XH connectors—the industry standard for LiPo balance leads—ensures broad applicability across most modern RC equipment you'll encounter in the UK market.

Unlike improvised solutions or low-quality alternatives, this properly engineered extension lead pack reduces mechanical strain on your battery connectors during repeated charging cycles, thereby extending the lifespan of your valuable LiPo packs. Safer charging means better battery longevity, more consistent performance, and ultimately better value for your RC investment. Whether you're setting up a dedicated RC charging station or simply need extra reach to charge your battery more conveniently, the Overlander Balance Extension Lead Pack 2143 is the intelligent choice.

Key Features

• Wide Compatibility (2S to 6S LiPos) — This extension lead pack works seamlessly with 2S, 3S, 4S, 5S and 6S LiPo battery configurations, covering every standard voltage from 7.4V to 22.2V. This broad compatibility means a single pack can serve your entire fleet of RC models, making it exceptionally practical for hobbyists with diverse equipment.
• JST-XH Connector Type — The leads feature JST-XH type balance connectors, which is the universal standard for modern LiPo batteries in the RC hobby. This ensures compatibility with virtually all contemporary LiPo packs without requiring additional adapters or converters.
• High-Quality 22AWG Silicone Wire — Each lead is constructed from premium 22AWG (0.6mm diameter) soft silicone wire, chosen specifically for its combination of flexibility and durability. Silicone insulation remains flexible even in cold conditions and resists heat degradation, ensuring these leads will function reliably through countless charging cycles.
• Optimal 95mm Extension Length — At approximately 95mm (just under 10 centimetres), each lead provides sufficient reach to extend your battery's balance connector away from the main pack without creating excessive slack that clutters your charging setup. This length is precisely engineered to balance accessibility with workspace organisation.
• Five Leads per Pack — The pack contains five individual extension leads, giving you flexibility to extend multiple batteries simultaneously or maintain spare leads for redundancy and convenience across different charging sessions.
• Enhanced Safety During Charging — By extending the balance leads away from the main battery connector, these extension leads reduce mechanical strain on your LiPo connectors during charging. This is particularly important during extended or high-amp charging sessions where stress on connectors can lead to premature wear or connection failures.
• Durable Soft Silicone Construction — The flexible silicone wire resists cracking and maintains its integrity through thousands of bend cycles, making these leads suitable for both permanent installations and portable charging setups that require regular packing and unpacking.
• Overlander Brand Reputation — Overlander is a well-established manufacturer of RC batteries and charging accessories, recognised across the UK and Europe for quality, reliability and safety. When you choose Overlander, you're choosing a brand with a proven track record in the RC community.

Technical Performance

The Overlander Balance Extension Lead Pack represents a careful engineering balance between electrical performance, mechanical durability and practical usability. The 22AWG (0.6mm) silicone wire gauge is precisely selected for balance charging applications, where currents are typically measured in milliamps rather than amps—far lower than main discharge connectors. This wire gauge provides sufficient conductivity for accurate cell balancing while maintaining maximum flexibility, a critical characteristic when routing balance leads around a charging station or through tight spaces in your RC workshop. The soft silicone insulation is rated for high temperature environments, an essential consideration since balance leads may be near other electronics or power supplies during charging operations. The JST-XH connector interface is the global industry standard for LiPo balance connections, approved by major battery manufacturers including Turnigy, Overlander itself, Venom, and countless others. The 95mm length is precisely calibrated: too short and the extension becomes impractical; too long and excess wire creates safety hazards and workspace clutter. Each lead in the five-pack has been manufactured to identical specifications, ensuring consistency across all five units. The construction quality ensures these leads will outlast many battery cycles, making them an economical addition to any RC enthusiast's toolkit. For RC hobbyists managing 2S through 6S LiPo configurations—the complete range of voltage options for RC cars, boats, helicopters, drones and planes—this single pack provides comprehensive coverage without requiring multiple different products.

What's in the Box

• 5 × JST-XH Balance Extension Leads (95mm length each)

Frequently Asked Questions

• What does a balance extension lead do? — A balance extension lead extends the balance connector of your LiPo battery away from the main discharge connector. This serves two critical purposes: first, it provides safe access to the battery's cell balance taps during charging, allowing your charger to independently monitor and charge each cell to optimal voltage; second, it reduces mechanical strain on the main battery connector during the charging process, extending overall battery lifespan and preventing connection failures.
• Is the Overlander Balance Extension Lead Pack suitable for beginners? — Yes, absolutely. This is one of the simplest RC accessories to use—you simply plug the extension lead into your battery's balance connector, then plug the opposite end into your LiPo charger's balance port. No soldering, no special tools, and no technical knowledge required. Beginners benefit immediately from the improved safety and convenience these leads provide.
• Which LiPo batteries are compatible with this pack? — These extension leads work with any LiPo battery featuring a JST-XH type balance connector in 2S, 3S, 4S, 5S or 6S configurations. This includes the vast majority of contemporary LiPo batteries sold in the UK market. If your battery has a JST-XH balance port, these leads will connect perfectly.
• What is the difference between 2S, 3S, 4S, 5S and 6S? — These numbers refer to the cell count in your LiPo battery. A 2S battery has two cells (7.4V nominal), 3S has three cells (11.1V), 4S has four cells (14.8V), 5S has five cells (18.5V), and 6S has six cells (22.2V). This single extension lead pack works with all these configurations because the JST-XH balance connector format remains identical regardless of cell count—only the number of balance leads differs.
• Are these leads suitable for high-current charging? — These extension leads are designed specifically for balance charging, which operates at milliamp currents far below the high-amp discharge currents your batteries handle during use. They are not suitable for main power connections but are perfect for their intended balance-charging purpose.
• Can I use these extension leads with non-Overlander batteries? — Yes. The JST-XH connector is an industry standard used by most major LiPo manufacturers including Turnigy, Venom, Spektrum and many others. If your battery has a JST-XH balance connector, these Overlander extension leads will work perfectly regardless of the battery brand.
• How durable are these extension leads? — The 22AWG soft silicone wire construction ensures these leads will maintain their flexibility and conductivity through countless charging cycles. Silicone insulation resists degradation far better than cheaper PVC alternatives, making these leads a long-term investment rather than a consumable product.
• What is JST-XH? — JST-XH is a specific connector standard developed by JST Manufacturing. The XH designation indicates a 2.5mm pitch spacing between pins. This connector type has become the de facto global standard for LiPo battery balance leads due to its reliability, compact size, and secure connections. All major RC battery manufacturers now use JST-XH connectors on their LiPo packs.

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 Balance Extension Lead Pack 2s–6s LiPos 2143 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.