Lithium Polymer (LiPo) batteries power modern RC vehicles, drones, and electronics, but their performance depends on the right connectors. These components ensure efficient power transfer, prevent overheating, and extend battery life. This guide outlines key LiPo connector types, their differences, and how to match them to your needs.
What Are the Two Connectors on LiPo Batteries?
LiPo battery connectors link batteries to devices, managing power flow and cell health. They are divided into two categories:
1. Power Connectors (e. g., XT60 for drones, EC5 for RC cars) for high-current discharge.
2. Balance Connectors (e. g., JST-XH) to monitor cell voltages during charging.
Mismatched connectors can lead to voltage drops, overheating, or fires.
Common types include the XT series, EC series, Deans, and JST, each designed for specific power demands.
LiPo Battery Connector Types Overview
LiPo batteries come with various connectors, depending on their intended use. Here are some popular ones:
- Deans Connector (T-Plug): Ideal for RC enthusiasts needing low-resistance connections in high-performance setups.
- XT60 and XT90 Connectors: The XT60 suits smaller projects, while the XT90 can handle more power.
- EC5 and EC8 Connectors: The EC5 is perfect for lower power needs, whereas the EC8 is designed for higher currents in RC vehicles.
- Anderson Powerpole Connector: Highly versatile, especially useful for 12V applications.
- JST Connectors: These smaller connectors work well with mini RC models and are available as Micro JST or JST-PH, depending on your needs.
- PH 2.0 and Molex Picoblade Connectors: Best for small LiPo batteries in micro models or compact devices; they’re lightweight and save space.
RC LiPo Battery Connector Types
Apart from EC3, EC5, and EC8, there are other popular RC battery connectors like Deans, XT30, XT60, and XT90. Each has unique features, such as current capacity, size, and ease of use. Choosing the right connector depends on your RC model’s power needs and specific requirements.
| Connector | Current Rating | Typical Use Case |
| XT30 | ≤30A | Micro-drones |
| XT60 | ≤60A | Medium drones, 1/10 cars |
| XT90 | ≤90A | Large drones/EDF jets |
| EC3 | 60A | Small helis/FPV quads |
| EC5 | 90A | 4S+ buggies/trucks |
| EC8 | 120A | Giant-scale models |
| Deans | 60A | Legacy RC gear |
| JST-RCY | ≤5A | Micro-electronics |
What Is The Difference Between JR and JST LiPo Battery Connectors?
JR and JST connectors are common in the RC hobby industry, differing mainly in size and compatibility. JR connectors are larger for bigger models, while JST connectors are smaller for smaller models and devices. Within JST, subtypes like JST-PH and JST-XH serve specific purposes; for example, JST-PH is used in small LiPo batteries for micro RC models.
What Are The Differences In LiPo Battery Connectors For Different Voltages?
LiPo battery connectors vary in design, current capacity, and voltage application:
- Low Voltage (e.g., 3.7V): JST-PH, Molex Picoblade, Micro JST, and PH 2.0 are used for micro RC models and small devices.
- Mid-Range Voltage (e.g., 7.4V – 11.1V): Deans, XT30, and XT60 connectors are suitable for various RC models, planes, cars, and drones requiring moderate power.
- High Voltage (e.g., 14.8V+): XT90, EC5, and EC8 connectors are designed for larger RC models needing higher voltage and current capacity.
Practical Recommendations
- Match Connectors to Power Needs:
use XT60 connectors for 30–50A systems and switch to XT90 or EC5 for over 50A.
- Prioritize Safety:
Always use balance connectors with a matching charger.
- Avoid Adapters:
Direct soldering reduces resistance.
- Inspect Regularly:
Check connections for melted housings or loose pins, as these indicate overloads.
Conclusión
Understanding LiPo battery connectors is crucial for hobbyists and engineers who work with these batteries. Whether handling large RC models, small gadgets, or 12V systems, selecting the right connector is essential for smooth and safe operation. Consider your project’s specific needs to choose the best connector for the job!
