E-flite 150mAh 1S 3.7V 45C LiPo Battery EFLB1501S45 is compatible with the following models:
A-BLH2400
A-BLH2480
A-BLH2900
A-BLH2980
A-BLH7200
- Brand: E-flite
- Model Number: EFLB1501S45
- Battery Type: LiPo (Lithium Polymer)
- Voltage: 3.7V nominal
- Cell Configuration: 1S1P (Single Cell)
- Capacity: 150mAh
- Energy: 0.555 watt-hours (0.5 Wh)
- Connector Type: PH 1.25 Ultra Micro
- Maximum Continuous Discharge Rate: 45C
- Maximum Continuous Discharge Current: 6.75A
- Standard Charge Rate: 3C
- Standard Charge Current: 0.45A
- Charge Time (approximate): 20 minutes at 3C
- Weight: 4 grams
- Case Type: Soft Case
- Compatible Aircraft Models: Blade MCX, Blade mSR S, Blade Nano QX, Blade Nano CP S, Blade Nano S2, Blade Nano S3, Blade Inductrix, Blade Inductrix FPV, HobbyZone Duet, HobbyZone Duet S2, HobbyZone Sport Cub S, HobbyZone Sport Cub S V2, HobbyZone T-28 Trojan S, E-flite Radian UMX, E-flite Yak 54 3D UMX, E-flite PT-17 UMX, E-flite Night Vapor UMX, E-flite Carbon Z Cessna 150 Aerobat
- What's Included: E-flite 3.7V 150mAh 45C 1S LiPo Battery with PH 1.25 Ultra Micro Connector
- What You Need to Complete: LiPo Charging Bag, LiPo Compatible Battery Charger
Overview
The E-flite 3.7V 150mAh 1S 45C LiPo Battery (EFLB1501S45) is a compact, high-performance single-cell lithium polymer battery pack designed specifically for ultra-micro RC applications. This versatile power solution is engineered to deliver exceptional performance in the most demanding ultra-micro RC scenarios, making it an essential upgrade or replacement battery for your collection. Whether you're flying an ultra-micro drone, piloting a micro RC helicopter, or powering a compact RC quadcopter, this battery provides the reliable energy you need for consistent flight times and responsive performance. For RC enthusiasts across the UK looking to expand their battery collection or replace worn-out cells, this E-flite battery represents exceptional value and reliability from one of the world's most trusted names in RC aviation and micro-scale vehicles.
Ultra-micro RC flying has never been more accessible, and the EFLB1501S45 is a testament to how far battery technology has advanced. With its PH 1.25 Ultra Micro connector, this battery integrates seamlessly with a wide range of ultra-micro aircraft, including E-flite's popular models and comparable machines from other manufacturers. The 45C discharge rating means this battery can deliver serious power output despite its compact size, making it ideal for aerobatic flying, racing, or extended leisure flights. This is the go-to battery for RC pilots who demand performance without compromise, and for beginners stepping into ultra-micro flight, it represents an excellent entry point into the world of LiPo power.
Every serious RC flyer needs reliable backup batteries, and the E-flite 150mAh pack is engineered to deliver consistent performance flight after flight. The soft-case construction protects the cells during storage and transport, whilst the industry-standard PH 1.25 connector ensures compatibility with most popular ultra-micro platforms. If you're building a complete RC battery collection, or if you're looking for a direct replacement for your existing ultra-micro setup, this battery is an intelligent choice backed by decades of E-flite's expertise in micro-scale RC engineering.
Key Features
- 150mAh High-Capacity Single Cell — The 150mAh capacity provides excellent flight time for ultra-micro applications, delivering between 3 and 5 minutes of continuous operation depending on your aircraft's power demand and flying style. This capacity balances weight savings with practical endurance, making it ideal for pilots who want extended flights without excessive weight penalties.
- 45C Continuous Discharge Rating — With a maximum continuous discharge rate of 45C, this battery can deliver up to 6.75 amperes of current under sustained load, enabling aggressive flying, rapid acceleration, and dynamic aerobatic manoeuvres. This high discharge rating ensures your ultra-micro aircraft responds instantly to control inputs without voltage sag or performance degradation.
- PH 1.25 Ultra Micro Connector — The industry-standard Ultra Micro connector (PH 1.25) provides secure, reliable connections with minimal weight penalty. This connector type is widely adopted across ultra-micro RC platforms, ensuring broad compatibility with E-flite models and comparable ultra-micro aircraft from other manufacturers. The compact design minimises space requirements within your aircraft's fuselage.
- 3.7V Single Cell Configuration — The single-cell 1S1P architecture delivers 3.7 volts nominal output, perfectly matched to the power requirements of modern ultra-micro brushless motor systems and ESCs. This voltage specification is optimised for the lightweight speed controllers and motors found in contemporary ultra-micro platforms, ensuring peak performance and longevity of your electrical components.
- 3C Standard Charging Rate — The battery supports standard charging at 3C (0.45 amperes), meaning a full recharge takes approximately 20 minutes using any compatible 1S LiPo charger. This practical charging speed allows you to quickly turn your battery around between flights, maximising your flying time during sessions at your local RC field.
- Soft-Case Construction — The protective soft-case shell safeguards the internal cells from impacts, abrasion, and environmental damage during storage and transport. This durable yet lightweight construction helps extend battery life and maintains performance consistency across hundreds of charge cycles.
- Verified E-flite Quality — As an authentic E-flite product manufactured by Horizon Hobby, this battery meets rigorous quality control standards and delivers the reliability that professional RC pilots and hobbyists depend on worldwide. E-flite's reputation for excellence in micro-scale RC is built on products like this battery that perform consistently across countless flying sessions.
Technical Performance
The E-flite 3.7V 150mAh 1S 45C LiPo Battery demonstrates outstanding engineering optimised for ultra-micro RC applications where weight and performance are equally critical. The 45C continuous discharge rating of 6.75 amperes represents exceptional power delivery from such a compact package, enabling brushless motor systems to reach peak efficiency without thermal stress or voltage regulation issues. The 0.555 watt-hour energy capacity provides practical flight endurance in ultra-micro platforms, where every gram of weight directly impacts performance and agility. The PH 1.25 connector standard is recognised globally as the optimal solution for ultra-micro RC connectivity, balancing contact resistance, mechanical durability, and minimal weight. The 3C standard charging specification allows the battery to accept charge safely and quickly, reaching full capacity in approximately 20 minutes with any LiPo-compatible charger. The soft-case construction employs proven lithium polymer battery protection methods, preventing external damage whilst allowing cell venting during charge and discharge cycles. The 1S1P cell configuration ensures balanced voltage distribution and eliminates the complexity of multi-cell balancing, making this battery straightforward for beginners whilst meeting the exacting standards of experienced RC pilots who operate dozens of aircraft. The 3.7V nominal output is perfectly aligned with modern brushless ESC specifications, ensuring optimal motor performance and extended component lifespan across hundreds of charge cycles.
What's in the Box
- E-flite 3.7V 150mAh 45C 1S LiPo Battery with PH 1.25 Ultra Micro Connector
What You Need to Complete
- LiPo Charging Bag — Essential for safe battery storage and charging, protecting cells and surrounding equipment from potential thermal events
- LiPo Compatible Battery Charger — Required to recharge the battery between flights; compatible options include the E-flite EFLC1008 USB charger or higher-specification models such as the Spektrum SPMXC1060 or SPMXC10401S
Frequently Asked Questions
- Is the E-flite 150mAh 1S LiPo Battery suitable for beginners learning to fly ultra-micro RC aircraft? — Yes, absolutely. This battery is an excellent choice for beginners because the 1S single-cell configuration eliminates balancing complexity, the PH 1.25 connector is widely standardised across beginner-friendly platforms, and the 150mAh capacity delivers 3 to 4 minutes of reliable flight time. Beginners appreciate the straightforward charging process using any standard LiPo charger, and the soft-case protection means the battery will survive the occasional handling mishap during learning flights.
- What aircraft models are compatible with the EFLB1501S45 battery? — This battery is compatible with numerous ultra-micro E-flite models including the Blade MCX, Blade mSR S, Blade Nano QX, Blade Nano CP S, Blade Nano S2, Blade Nano S3, Blade Inductrix, Blade Inductrix FPV, HobbyZone Duet, HobbyZone Duet S2, HobbyZone Sport Cub S, HobbyZone Sport Cub S V2, HobbyZone T-28 Trojan S, E-flite Radian UMX, E-flite Yak 54 3D UMX, E-flite PT-17 UMX, E-flite Night Vapor UMX, and E-flite Carbon Z Cessna 150 Aerobat. If you own a different ultra-micro model, check whether it features a PH 1.25 connector for compatibility confirmation.
- How long does the E-flite 150mAh battery last per flight in ultra-micro applications? — Expected flight time ranges from 3 to 5 minutes depending on your aircraft type, flying style, and throttle management. Aggressive aerobatic flying with continuous high throttle will reduce endurance towards the 3-minute mark, whilst leisurely cruising and gentle flying can extend duration to the full 5-minute range. Many pilots operate multiple batteries in rotation to maximise their flying sessions without excessive downtime between flights.
- What charger should I use with the EFLB1501S45 battery? — Any LiPo-compatible charger supporting 1S cells will work correctly. Popular budget-friendly options include the E-flite EFLC1008 USB charger, which connects directly to computer USB ports. For more advanced charging with monitoring and programmable features, the Spektrum SPMXC1060 or SPMXC10401S chargers offer enhanced functionality. If you already own a balance charger like the Skymax B6, this will also charge the battery correctly. Standard charging at 3C (0.45 amperes) requires approximately 20 minutes for a complete charge from fully depleted condition.
- Does this battery come with a charging bag and charger? — The battery itself is supplied as a single unit with the PH 1.25 connector already fitted. A LiPo charging bag and compatible charger are not included and must be purchased separately to safely store and recharge the battery. The charging bag is a consumable item that gradually degrades with use and should be replaced periodically; many experienced pilots recommend purchasing multiple bags for rotation and safety redundancy.
- What is the weight of the E-flite 150mAh 1S LiPo Battery? — The battery weighs approximately 4 grams, including the connector and soft-case protection. This minimal weight is crucial for ultra-micro aircraft performance, as every gram saved contributes directly to improved responsiveness, extended flight time, and better agility during aerobatic flying. The lightweight design demonstrates E-flite's expertise in micro-scale RC engineering.
- Can I charge this battery using a USB charger instead of a dedicated LiPo charger? — Yes, the EFLC1008 USB charger is purpose-designed for 1S LiPo batteries and connects directly to any standard USB power source including computer USB ports, USB power adapters, or USB battery packs. This makes charging convenient whether you're at the flying field, at home, or travelling. For faster charging or if you prefer a mains-powered solution, dedicated LiPo chargers offer superior functionality and often faster charging times.
- How does the 45C discharge rating compare to other 1S LiPo batteries for ultra-micro RC? — The 45C rating is considered high performance for ultra-micro batteries, delivering excellent acceleration and responsiveness during aerobatic flying. Some ultra-micro batteries feature lower discharge ratings (such as 25C), which restricts peak current availability and can result in voltage sag under aggressive flying. The 45C specification in this E-flite battery ensures your aircraft maintains responsive control inputs even during demanding manoeuvres, making it the preferred choice for pilots seeking maximum performance from their ultra-micro platforms.
- Is a LiPo charging bag essential for this battery? — Yes, a LiPo charging bag is highly recommended for safety and is considered essential equipment for responsible battery ownership. These bags contain any potential thermal event should the battery experience failure during charging, protecting your charger, surrounding equipment, and property. Many experienced RC pilots use multiple charging bags in rotation and replace them regularly as they gradually lose effectiveness. A suitable bag such as the LSACK provides professional-grade protection at reasonable cost.
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 E-flite 3.7V 150mAh 1S 45C LiPo Battery 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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