Custom Battery Packs for Drones and RC Models
A drone or RC battery must deliver high current in short bursts at low weight. Jetray builds custom LiPo and Li-ion packs for drone, FPV and RC model brands, to your cell count, connector and shape.

What decides the pack
- 01Cell count (S). 2S, 3S, 4S, 6S and higher set the voltage.
- 02Capacity (mAh). Sets flight time and weight.
- 03Discharge rate (C). Sets how much current the pack gives. A pack sized to the average current alone will sag in a climb.
- 04Weight. Every gram costs flight time.
- 05Connector. Power plug and balance plug must match your speed controller and charger.
LiPo or Li-ion
Brands we can offer include Panasonic, Samsung, LG, Molicel and EVE for cylindrical cells. Send your peak current and weight limit, and we check the cell and layout. Cell selection →
What we can set

- Voltage and layout cell count and series-parallel layout.
- Connectors and leads power and balance connectors, wire gauge and length.
- Shape a tray fit, a flat brick or a custom pack to fit the airframe.
- Protection and balancing a protection board where the design allows it, and balance leads for chargers. BMS design →
- Smart data CAN, UART and Bluetooth can be set up to your requirement for packs that report state to the aircraft.
- Charger a matching charger.
- Brand your label and packaging. OEM, ODM and private label →
Shipping and documents

Lithium batteries for drones are shipped under transport rules, and air freight is strict. UN38.3, IEC 62133 and MSDS documents are available, with transport and certification reports for the shipment. Tell us your markets, such as the US, EU or UK, and the shipping mode. Quality and certification →
Order and delivery
Custom battery pack samples are charged, and you fly them before the batch. Custom packs usually take one to two months. MOQ depends on the product. We supply distributors. Prototyping and samples → Cost and MOQ →

Mistakes to avoid with drone and RC packs
Choosing by capacity only
TAP TO SEE WHYWrong connector
TAP TO SEE WHYIgnoring weight
TAP TO SEE WHYShipping without checking
TAP TO SEE WHYRough handling
TAP TO SEE WHYOptions you can set
Mark what you want to discuss. Your picks go into the quote form below.
From first message to delivery
Send the model, motor current, weight limit and connectors.
We propose the cell and build, and quote.
We build a charged sample, and you test it in the model.
We adjust cells, weight or connectors from your notes.
Batch production, final test and worldwide shipping.
Frequently asked questions
It is the discharge rate relative to capacity. A higher C rating means the pack can give more current. Always ask for the continuous and burst ratings and how they were tested.
LiPo for high current and low weight. Li-ion for long range. Your peak current and weight limit decide.
Yes. Send the plug type and polarity.
Yes. Send the drawing or photos.
We work with drone and RC brands, makers and distributors. Send your target models and quantities.
Yes. Private label is supported.
Building drones or RC models?
Send the cell count, capacity, peak current and weight limit. We reply within 24 hours.
Your drone and rc battery packs
Values from the tools above are already here. Add what you know and send.
Your message to an engineer
Fill what you know. Blank lines are fine.Goes straight to our sales engineers, the same as the quote form. Need to attach a drawing? Use the quote form or email it.
Building drones or RC models? Send the cell count, capacity, peak current and weight limit.
Request a Quote→













