- Battery Type: LiPo (Lithium Polymer)
- Battery Voltage: 3.7V nominal
- Number of Cells: 1S (single cell)
- Capacity: 150mAh
- Maximum Burst Discharge Rate: 50C
- Connector Type: JST PH1.25 (Ultra Micro)
- Watt Hours: 0.56 Wh
- Hard Case: No
- Programmable: No
- Quantity in Bundle: 3 batteries
Overview
The SPM 3.7V 150mAh 1S 50C LiPo Battery with JST PH1.25 Connector is a compact and reliable power solution from Spektrum, one of the most trusted names in RC hobby electronics. This battery is specifically designed for ultra-micro RC applications, making it the ideal choice for small-scale RC cars, drones, and other compact RC models that require dependable, high-performance power delivery. Whether you're a dedicated RC enthusiast in the UK looking to expand your battery collection, or a beginner just starting out with micro-scale RC vehicles, this battery offers the performance characteristics you need to keep your models running at their best.
What sets this battery apart is that you receive a bundle of three SPMX1501S50 batteries in a single purchase, providing excellent value for money and ensuring you always have a charged spare ready to go. The JST PH1.25 connector is the industry-standard ultra-micro connector type, guaranteeing compatibility with a vast range of Spektrum-equipped micro RC models and other brands that utilise this connector standard. This is particularly important for UK RC car enthusiasts and RC drone pilots who demand seamless integration with their existing equipment without the need for adapters or modifications.
These LiPo batteries deliver consistent performance across their discharge cycle thanks to the robust 50C discharge rate, which provides excellent power delivery even in demanding flight or driving conditions. The single-cell 1S configuration with 3.7V nominal voltage makes these batteries perfectly suited for ultra-micro aircraft, micro RC quadcopters, and lightweight RC vehicles where weight and size are critical factors. Spektrum's reputation for quality and reliability means you can trust these batteries to perform consistently, mission after mission.
Key Features
- 50C Maximum Burst Discharge Rate — The 50C discharge capability means these batteries can deliver rapid bursts of current when needed, whether you're accelerating hard in a micro RC car or pushing your RC drone through aggressive flight manoeuvres. This high discharge rate ensures responsive performance and prevents voltage sag that could compromise control and power delivery during demanding usage.
- 3.7V 1S Single-Cell Configuration — The single LiPo cell with 3.7V nominal voltage is purpose-built for ultra-micro applications where lighter weight and minimal size are essential design requirements. This voltage is standard for countless micro RC models available in the UK market, ensuring broad compatibility across different manufacturers and platforms.
- 150mAh Capacity — The 150mAh capacity is precisely calculated for ultra-micro RC applications, providing adequate runtime without adding unnecessary weight that would compromise flight characteristics or handling in small-scale vehicles. For typical micro RC models, this capacity delivers satisfactory flight times or driving sessions that allow you to enjoy extended operational periods between battery swaps.
- 0.56 Watt Hours Energy Storage — This energy specification (derived from 3.7V × 150mAh) indicates the total power available per charge cycle, giving you a clear measure of how much operational time you can expect from each battery under normal conditions.
- JST PH1.25 Ultra-Micro Connector — The JST PH1.25 connector is the industry-standard ultra-micro connector used across countless RC models, micro drones, and portable devices. This universal compatibility eliminates the need for adapter cables and ensures reliable power transfer without loose connections that could disrupt your RC flying or driving sessions.
- Bundle of Three Batteries — Rather than purchasing a single battery, you receive three complete units in this bundle, providing exceptional value and ensuring you always have fully charged batteries ready for your next session. This is particularly valuable for RC enthusiasts who want to maximise their operational time without lengthy recharging waits between flights or driving sessions.
- LiPo Chemistry for High Performance — Lithium Polymer battery chemistry delivers superior energy density compared to older battery technologies, meaning you get longer runtime and more consistent power delivery in a lighter, more compact package. This makes LiPo the preferred choice for performance-focused RC applications where every gram of weight matters.
Technical Performance
These Spektrum LiPo batteries are engineered with professional-grade quality standards that reflect decades of Spektrum's experience in RC electronics and power systems. The 50C discharge rate capability ensures that even demanding micro RC applications receive stable, responsive power delivery without voltage sag that could impair performance or cause loss of control. The 150mAh capacity has been precisely calibrated for ultra-micro models, striking the optimal balance between runtime, weight, and physical dimensions. Each battery in this three-battery bundle meets Spektrum's rigorous quality assurance standards, ensuring consistent performance across all three units so you can confidently use any battery from the set without worrying about individual unit variation. The single-cell configuration eliminates the complexity and weight of multi-cell batteries whilst still delivering the voltage required by modern ultra-micro RC systems. The JST PH1.25 connector is gold-plated for superior electrical contact and corrosion resistance, ensuring reliable power transfer even after extended use and exposure to humidity typical of UK RC flying fields and outdoor RC car tracks.
What's in the Box
- Bundle of 3 × SPM 3.7V 150mAh 1S 50C LiPo Battery with JST PH1.25 Connector
Frequently Asked Questions
- What RC models are compatible with the SPM 3.7V 150mAh 1S 50C LiPo Battery? — These batteries are designed for ultra-micro RC applications including micro RC quadcopters, micro RC fixed-wing aircraft, ultra-micro RC helicopters, and lightweight micro RC cars. Any model equipped with a JST PH1.25 connector or compatible charging system can use these batteries. The single-cell 3.7V configuration is standard across most micro RC platforms, making these batteries compatible with a broad range of Spektrum-equipped models and many other manufacturers' micro-scale vehicles.
- Is this battery suitable for RC beginners? — Yes, these batteries are excellent for beginners who are starting with micro RC models. The pre-assembled configuration with soldered connector means you don't need to perform any assembly or modification. The included bundle of three batteries allows beginners to maintain continuous flying or driving without extended downtime between charging cycles. Additionally, Spektrum's reputation for quality and safety means the batteries include proper build quality and construction standards that protect against common failure modes.
- How much runtime can I expect from the 150mAh capacity? — Runtime depends on your specific RC model and throttle usage, but ultra-micro models typically achieve 5-15 minutes of continuous operation per charge with the 150mAh capacity. This makes these batteries ideal for cumulative flying or driving sessions where you rotate between multiple batteries, charging one whilst flying or driving another. The 150mAh capacity is the industry standard for ultra-micro models where weight is critical to performance.
- What does the 50C discharge rate mean? — The 50C discharge rating indicates the maximum continuous current the battery can safely deliver without damage. In practical terms, this 50C rating means the battery can discharge at up to 7.5 amps continuously (150mAh × 50C = 7500mA), providing responsive, powerful performance for demanding applications like aerobatic micro RC flying or high-speed micro RC driving. This high discharge rate prevents voltage sag that could compromise control responsiveness.
- What is the difference between this battery and other ultra-micro LiPo batteries? — The SPM 3.7V 150mAh from Spektrum is part of a professional-grade product line with stringent quality control standards. The 50C discharge rating is competitive and ensures responsive performance. Spektrum's reputation for reliability means these batteries include proper construction standards, safety features, and quality assurance that protect your valuable RC models from power-related failures.
- How should I safely store these LiPo batteries when not in use? — LiPo batteries should be stored in a cool, dry location, ideally at around room temperature. The batteries should be stored in a partially charged state (roughly 50% state of charge) for long-term storage rather than fully charged, which can reduce battery lifespan over time. Many RC enthusiasts store LiPo batteries in dedicated fireproof bags or metal containers as a safety precaution. Always follow Spektrum's safety guidelines included with the battery.
- Can I charge these batteries with any standard charger? — You must use a LiPo-compatible charger that supports 1S (single-cell) charging. Standard chargers designed for older battery chemistries will not work with these LiPo batteries. Spektrum offers compatible chargers and balance charging systems designed specifically for their battery range. Always ensure your charger is set to the correct cell count (1S) and chemistry (LiPo) before connecting the 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 SPM 3.7V 150mAh 1S 50C LiPo Battery: JST PH1.25 Connector O-SPMX1501S50 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.
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