903048 3.7V 1100mAh JST 25C Replacement Battery for RC Drone Helicopter Quadcopter

$8.88

✅ Brand New | 📱 For RC Drone / Helicopter | 🚚 Ships in 3-7 days

8 in stock

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📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.

Compare✅ Qingsm Tech⚠️ eBay / AliExpress
Warranty Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo recourse, seller can ignore you

🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.

📦 Shipping Cost & Delivery Time (Economy Shipping from China)

📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient's CPF, as it is required for Brazilian customs and shipping. Thanks! We appreciate your understanding.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $4.00 (approx. €3.50) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

🔋 Can't find your battery model? Use our FREE Battery Lookup Service – tell us your device and we'll find a match within 24 hours. 👉 battery.qingsm.tech/find-my-battery

Description

Battery type: 903048 Li-Po (1S)
Battery capacity: 1100mAh
Rated voltage: 3.7V
Discharge rate: 25C (27.5A burst)
Battery type: Li-Polymer (LiPo)
Connector type: JST (2-pin / Small White Plug)
Dimensions: Approx. 55 x 30 x 9 mm
Weight: Approx. 26.5g
Compatible with: RC Drone, Helicopter, Quadcopter, Airplane, RC Car, Boat, DIY Electronics Projects
Package include: 1 x battery
Power up your RC aircraft with this high-performance 903048 replacement battery. This 3.7V 1100mAh lithium-polymer pack features a 25C discharge rate, delivering reliable energy for quadcopters, helicopters, and other RC vehicles—providing extended flight time and consistent power output.
Built with grade A Li-Po cells and advanced 25C high-rate technology, this battery provides stable voltage output and consistent performance. Features built-in PCB protection against overcharge, over-discharge, and short circuits for safe operation. The JST connector ensures secure, plug-and-play compatibility with most RC drones and helicopters.
Compatibility Note: Designed for RC drones, helicopters, quadcopters, airplanes, cars, and boats using 1S 3.7V configuration with JST connector. Confirm your device uses JST plug before purchase. For best performance, use with a compatible Li-Po balance charger.
Battery Care Tips: Avoid full discharge (keep above 20%). Cool down before recharging. Do not overcharge. Store at 3.8V for long-term storage. If swelling occurs, stop use immediately.

Condition: Brand New – Never used, premium quality

CE/RoHS/UN38.3 Certified – Safety tested

90-Day Warranty – Hassle-free replacement

Ships in 3-7 days with tracking – Fast delivery

PayPal Buyer Protection included – Secure checkout

✅ 100% Compatibility Guarantee – If it doesn’t fit, we’ll refund you. No questions asked.

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Frequently Asked Questions

Yes, this 3.7V 1100mAh 25C Li-Po pack with JST connector is designed for RC drones, quadcopters, helicopters, airplanes, and cars that use 1S battery configuration.

The battery has a genuine capacity of 1100mAh at 3.7V. It features a 25C continuous discharge rate (27.5A burst), providing ample power for high-performance RC applications.

We offer 90-day warranty and 100% compatibility guarantee—if it doesn't fit, we'll refund you. Orders ship in 3-7 days with tracking provided. For full details, please refer to our "What to Know Before You Buy" page (in the main menu).

✅ Ready to order?

This battery is in stock and ready to ship within 3-7 days. 90-day warranty included.

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