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QS8-S Anti Spark Connector 150A High Current Plug for Electric Vehicle Lithium Battery

QS8-S Anti Spark Connector 150A High Current Plug for Electric Vehicle Lithium Battery

The QS8-S series is a two-pole anti-spark high-current power connector, equipped with built-in pre-charge auxiliary pins, thick full gold-plated copper terminals, supporting 120A continuous current, 180A instantaneous peak discharge. It comes in black and blue two-color PA66 flame-retardant housings, specially designed for medium-sized multi-rotor FPV drones, industrial AGV robots, RC off-road vehicles, portable small energy storage power packs and medium-capacity lithium battery packs. Built-in anti-spark pre-contact pins eliminate electric arc sparks during live plugging/unplugging of lithium batteries, greatly improving field operation safety for drone and robot maintenance. Large-diameter thick gold-plated banana terminals reduce loop resistance and heat buildup, avoiding plug melting and overheating under full-load discharge. The split housing design with separate plastic dust caps simplifies wire soldering/crimping; compatible with 10AWG / 12AWG high-temperature flexible silicone wire. Fully RoHS compliant, widely used for 3–12L agricultural spray drones, educational robotics, RC racing models and small portable lithium energy storage equipment.

Model:
QS8-S Anti Spark Connector
Brand:
Huamao

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QS8-S connector anti-spark connector High Current Connector RC lithium battery male female plug Gold Plated Terminal Lithium Battery Connector

Product Description

Built-in anti-spark pre-charge pin solves the fire hazard of open sparks during live battery replacement for medium agricultural drones and industrial AGVs, far safer than non-anti-spark XT60/XT90 plugs. Thick gold-plated large-area conductive poles provide stable 120A continuous load capacity, fully meeting full-throttle power demand of 3–12L spray multi-rotors without plug overheating melting. Removable separate dust caps protect gold contacts from workshop dust and moisture oxidation, extending connector service life during frequent disassembly. Black/blue dual color options allow equipment manufacturers to distinguish different battery voltage grades or equipment models for easy inventory management. Split open rear wire cavity simplifies cable assembly work, no complicated internal barriers blocking soldering operations.

Every QS8-S connector passes strict factory safety testing before shipment, including 120A long-hour load temperature rise test, anti-spark arc suppression test, 48h neutral salt fog anti-corrosion screening and terminal tensile retention test. We supply single male/female bare plugs, matching dust caps and finished silicone wire adapter cables for medium agricultural drone manufacturers, educational robot brands and RC hobby factories.

Specifications

Connector Model	QS8-S male plug / QS8-S female socket
Rated Current	Continuous 120A; instantaneous peak 180A
Rated Voltage	DC 800V
Housing Material	PA66 nylon plastic
Compatible Wire Gauge	10AWG / 12AWG
Operating Temperature Range	-40℃ ~ +180℃

Advantages

Built-in anti-spark pre-charge pin safety design: Eliminate electric arc sparks during live battery plugging, solving fire safety hidden danger of medium-capacity lithium batteries for drones and robots, much safer than ordinary XT series non-anti-spark connectors.
Thick full gold-plated oversized conductive terminals: Ultra-low loop contact resistance, minimal heat accumulation under 120A full continuous load, avoid plug melting and lithium thermal runaway risks for medium multi-rotor UAVs.
Independent matched plastic dust caps: Protect exposed gold-plated contacts from dust, moisture and physical scratches when disconnected, effectively preventing contact oxidation and signal/power interruption faults.
Dual black/blue color housing selection: Manufacturers can use color coding to differentiate battery voltage levels, equipment series or positive/negative circuit groups for convenient production and after-sales maintenance management.
Open rear large wire cavity compatible with 10/12AWG silicone wire: Easy manual soldering and crimping operations, greatly improving lithium battery cable assembly production efficiency.
Medium UAV & robot exclusive customization service: Supply bare plugs with dust caps and finished battery extension cables; small-batch prototype samples available for medium agricultural spray drone, industrial AGV robot and RC racing model product development verification.

Application

Medium-Size Agricultural Spraying Multi-Rotor Drones:3L~12L agricultural spray drone main lithium battery QS8-S power plug, medium cargo transport multi-rotor aircraft anti-spark high-current connector, small aerial survey UAV ESC main power assembly terminal
Industrial AGV & Educational Robots:Workshop lightweight AGV robot lithium battery QS8-S connector, school educational programming robot power anti-spark plug, automated sorting mini handling robot power terminal assembly
RC Hobby Racing Models:Medium-size RC off-road car high-discharge LiPo battery QS8-S plug, mid-scale RC boat lithium power connector, 600-size RC helicopter ESC main power plug
Small Portable Outdoor Energy Storage Equipment:1000W~3000W camping portable energy storage lithium pack QS8-S connector, portable solar small power station anti-spark power plug, handheld mobile welding machine auxiliary lithium power terminal
Lithium Battery Test & Small Aging Equipment:Desktop multi-channel lithium cell capacity tester parallel power distribution QS8-S plug, small battery aging test bench medium current connecting terminal, portable battery discharge detector power connector

FAQ

Q1: What is the difference between QS8-S, QS9L and QS12 anti-spark connectors?

A: QS8-S is medium-current 120A continuous, suitable for 3–12L small/medium drones and AGV robots; QS9L supports 180A continuous for large agricultural UAVs; QS12 reaches 240A continuous for heavy-lift 20L+ spray drones. QS8-S is more compact for medium power lightweight equipment.

Q2: What is the function of the separate plastic caps on the left and right of the product picture?

A: They are dust protection caps, which cover the gold-plated banana terminals when the plug is disconnected, preventing dust, water vapor and scratches from oxidizing the gold contacts and increasing contact resistance.

Q3: Can QS8-S completely eliminate sparks when live plugging lithium batteries?

A: Yes, built-in pre-charge auxiliary pins make contact first to buffer instantaneous surge current, no obvious electric arc spark appears during live plug/unplug of medium-capacity lithium packs, greatly reducing ignition risk.

Q4: What wire gauge matches QS8-S plug?

A: It supports 10AWG and 12AWG high-temperature flexible silicone heavy current wire, matching medium-discharge lithium battery main power wiring for small and medium drones and robots.

Q5: Can we customize finished extension cables with QS8-S plugs on both ends?

A: Fully supported, we can assemble arbitrary length adapter cables with 10/12AWG silicone wire for battery parallel charging and power distribution use.