Overview of Whoop Battery Connectors
The tiny whoop drone market has evolved several battery connector standards, each attempting to solve the limitations of its predecessors. Here’s a comprehensive analysis of the main connector types:
PH2.0 Connector
Specifications:
- Current Rating: 4.5A continuous
- Weight: 0.4g per set
- Pin Type: Crimped pins, 0.5mm wide square pins
Pros:
- Lightweight design
- Widely available
- Compatible with most chargers
Cons:
- High internal resistance
- Significant voltage sag under load
- Less durable due to crimped pins
BT2.0 Connector
Specifications:
- Current Rating: 9A continuous, 15A burst
- Weight: 0.6g per set
- Pin Type: 1mm banana connector
Pros:
- Lower internal resistance than PH2.0
- Better power delivery
- Durable banana-style connector
Cons:
- Proprietary BetaFPV design
- More expensive
- Limited battery options
A30 Connector
Specifications:
- Current Rating: 15A
- Weight: 0.6g per set
- Resistance: 1.6mOhm
Pros:
- Compatible with BT2.0
- Similar performance to BT2.0
- More affordable than BT2.0
Cons:
- Newer standard
- Confusing gender naming convention
- Limited availability
GNB27 Connector
Specifications:
- Current Rating: 9A continuous, 15A burst
- Weight: 0.8g per set
- Pin Type: Copper plated pins
Pros:
- Very low resistance
- Durable construction
- Good power delivery
Cons:
- Heavier than alternatives
- Being phased out in favor of A30
- Inconsistent manufacturing tolerances
Recommendations
For new builds:
- Tiny Whoops: BT2.0 or A30 connectors are ideal choices, offering the best balance of weight and performance
- High-Power Builds: Consider GNB27 for maximum current handling
- Budget Builds: PH2.0 remains adequate for basic flying but upgrade when possible
Important Note: Avoid using adapters between different connector types as they introduce additional resistance and negate the benefits of better connectors. If upgrading, it’s recommended to convert all batteries and equipment to the same connector type for optimal performance.