3.7V 30C 350mAh LiPo Battery YY702025 for Drones - Compoden
3.7V 30C 350mAh Lithium-Polymer Rechargeable Battery (YY702025) for Drones
This is a compact 3.7V lithium-polymer cell with a 350mAh capacity and a continuous 30C discharge rating, giving you up to 10.5A of burst current. The YY702025 form factor is widely used in micro drones, tiny FPV quads, and small RC aircraft where weight and power density matter. Its lightweight build and stable voltage under load make it a reliable power source for short, high-performance flights.
Key Specifications
| Specification | Value |
|---|---|
| Nominal Voltage | 3.7 V |
| Capacity | 350 mAh |
| Continuous Discharge | 30C (10.5 A) |
| Dimensions | 7 x 20 x 25 mm (±1 mm) |
| Weight | ~8 g |
| Connector | JST-PH 2.0 mm (2-pin) |
What You Can Build With This
- Micro brushed or brushless racing drone (65–75mm frame)
- Tiny RC plane or foam glider power system
- Portable 3.7V USB charger using a boost module
- Wearable battery pack for Arduino LilyPad or Gemma projects
Compatibility
This 1S LiPo works directly with most micro drone flight controllers that accept a 3.7V input, such as the BetaFPV F4, Happymodel Crazybee boards, and any whoop-style all-in-one unit. It also pairs well with 3.7V coreless motor sets and small servos. For Arduino or Raspberry Pi Pico, combine a TP4056 charger module and a 5V boost converter to power the board safely. Do not connect it directly to a 5V logic board without voltage regulation.
Wiring Notes
Red wire is positive (+), black is negative (-). Always charge to 4.2V maximum using a proper LiPo charger; exceeding this can cause permanent damage or fire. The 30C rating means you can continuously draw up to 10.5A – stay within this limit and check connector temperature during high-current use. Never short the terminals or puncture the cell pouch.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, but the Uno expects 5V. Connect the battery to a TP4056 charger module’s output, then feed that into a boost converter (5V/1A) to power the Uno’s Vin pin. Do not connect the battery directly to Uno’s 5V or 3.3V rails.
Which charger module should I use?
A TP4056-based USB charging module with overcharge protection is ideal, as it safely terminates charging at 4.2V. Avoid using any charger without a dedicated LiPo charge profile.
Does this battery have built-in over-discharge protection?
No, this cell does not include a protection circuit. For long-term use, add an external low-voltage cutoff module or set your flight controller’s voltage alarm to 3.2V–3.3V to prevent over-discharge damage.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items