This QS9L anti-spark male & female plug with built-in pre-charge resistor is a heavy-duty high-current power wiring solution, specially designed for large UAV, agricultural plant protection drones and high-power RC lithium battery systems. Equipped with professional pre-charge resistor anti-spark technology, it eliminates electric arc and spark ablation during plugging and unplugging. Matched with ultra-soft 200°C high-temperature silicone wire, this harness delivers stable, overheat-free high-power transmission for large-capacity drone battery packs.
Key Features
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Built-In Resistor Anti-Spark ProtectionThe integrated pre-charge resistor enables slow pre-charging on initial connection. It effectively suppresses intense sparks and arc burns, protecting the connector terminals from damage, extending product lifespan and greatly improving daily operation safety.
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Extreme High Current CapacityLarge-diameter gold-plated pure copper terminals ensure ultra-low contact resistance. Paired with thick 8AWG high-spec silicone wire, it supports
120A+ continuous current and 200A+ peak current, fully meeting heavy-load power demands of large industrial and agricultural drones.
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Industrial Grade DurabilityThe housing is made of flame-retardant, high-temperature resistant engineering nylon, featuring excellent impact resistance, aging resistance and UV stability. It withstands long-term vibration, outdoor harsh environments and frequent mating cycles.
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Secure Anti-Vibration Lock StructurePrecision snap-in locking design creates a firm tight connection after docking. It will never loosen or accidentally disconnect under strong vibration during high-intensity drone flight. Standard QS9L interface ensures perfect universal compatibility.
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Premium Ultra-Flexible Silicone WireHigh-grade 200°C heat-resistant soft silicone cable offers outstanding bending durability, oil resistance and ageing resistance. It can be easily routed and installed inside narrow internal drone spaces.
Common Applications
Agricultural plant protection drone battery power connection
Large industrial survey and mapping UAV power systems
High-power RC aircraft and heavy-load RC model builds
Large-capacity lithium polymer battery pack assembly
Drone ESC and power distribution module internal wiring
High-current new energy mobile power equipment
Product Advantages
Pre-charge anti-spark design prevents terminal burn and greatly enhances use safety
Outstanding high-current performance with zero overheating under full long-time load
Ultra-flexible high-temperature wire adapts to complex internal installation layouts
Firm locking structure ensures stable connection during intense drone operation
Universal QS9L standard for wide compatibility with mainstream drone battery systems
Customization Services
Custom wire harness length and wire gauge options
Custom wire color sequence and insulation processing
Single-end / double-end pre-terminated plug assembly
Bulk OEM private labeling and custom packaging support
Custom processing for battery factory mass production
