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3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.
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3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.
No memory effect and rechargeable, Longer storage life than NiMH battery.
3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.
Item #: 222916591

3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing

Item #: 222916591

GBP 25

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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us Imported from USA store

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Order now and get it around Monday, September 28
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No memory effect and rechargeable, Longer storage life than NiMH battery.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Capacity
This 4000mAh battery pack offers extended usage for devices, ensuring longer operation times for RC airplanes, fishing lights, and more, without frequent recharges.
Versatile Compatibility
Designed for various applications, this battery pack is ideal for DIY projects, doorbells, and other devices, making it a versatile power source for hobbyists.
Convenient Charging
Included JST-2P USB charger cable allows for easy and quick recharging, simplifying the process and eliminating the need for separate charging equipment.

Product Details

Shop 3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc. online at a best price in Guernsey. B0F271DX8J
Country of OriginThis item will be imported from US
Item Weight0.5 lbs (230 grams)
What is in the box3.7V 4000mAh Li-ion... For more details, please check description/product details

Dangerous Goods

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • RC Airplane Enthusiasts

    Perfect for hobbyists needing reliable power for their remote-controlled airplanes during prolonged flying sessions.

  • DIY Projects

    Ideal for individuals working on electronic projects requiring a compact power source with a stable output.

  • Outdoor Users

    Good choice for fishing and camping enthusiasts needing portable lighting solutions powered by rechargeable batteries.

Not Suitable For
  • High-Power Devices

    Not suitable for devices requiring significantly higher voltage or capacity than the provided 3.7V and 4000mAh.

Product Description

3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What devices can I use this battery in?

    Answer: This battery is compatible with walkie talkies, electric drills, fishing lights, RC cars, LED headlamps, digital cameras, and mobile speakers.
  • Question: How many times can this battery be recharged?

    Answer: The battery can be recharged up to 1000 times.
  • Question: Does this battery have any protections?

    Answer: Yes, it has protections against overcharging, over discharging, over current, and short circuits.

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Pros

  • Long-lasting power
  • Versatile applications
  • Easy to recharge
  • Lightweight and portable
  • Includes charger cable

Cons

  • May take some time to fully charge.

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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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GBP 25

Order now and get it around Monday, September 28

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
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Fastest cross-border delivery

Features & Benefits

  • 3.7V rechargeable lithium-ion battery pack with 4000mAh capacity.
  • Made of two 2000mAh power cells for enhanced performance.
  • Suitable for various devices: walkie talkies, RC cars, digital cameras, and more.
  • Equipped with multi-protections against overcharging, discharging, and short circuits.
  • Economical with up to 1000 recharge cycles and 80% capacity maintenance for 12 months.
  • Compact size: 68*36.5*19mm, ensuring fit for multiple applications.

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