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Easy to Use
LED Status Light System
Blue Light Solid/Red Off - Fully Charged
Blue Flashing/Red Solid - Standby
Blue off/Red Solid - Charging
LED Status Light System
Blue Light Solid/Red Off - Fully Charged
Blue Flashing/Red Solid - Standby
Blue off/Red Solid - Charging
High-Resolution Digital Display
LED Status Light System
Customizable Sound Profiles
LED Status Light System
USB A to B - Charging cord required


Voices of the Pros
Rules Compliance
Team Vortex:
USA National Champions
World Robot Olympiad
Junior Division
"Using the ZX4 charger helped us conform to World Robot Olympiad rules of only a single hub in the pit area"
Cost Effective
Team Orange Astronaunts
USA National Champions
World Robot Olympiad
Elmentary Division
"The ZX4 allowed us to spend less for our compeition charging needs"
Easy to Use
Anonoymous First LEGO League Coach
"This charger really helped us perform at FLL competitions. So easy to use. Just wait for the blue light to go solid"
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