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A black rectangular wall adapter with a fixed mains plug and a thin output cable ending in a small connector

Tradernoors

Tradernoors 10V DC adapter for Lego Mindstorms NXT/EV3 7.4V 2200mAh battery 700mA charger

SKU CH-T6J9-393GZ

Charges 7.4V 2200mAh Lego Mindstorms NXT and EV3 batteries with a 10V DC output at 700mA

  • Charges Lego Mindstorms NXT and EV3 batteries
  • 10 V DC output matches original transformer specs
  • 700 mA charge current for 7.4 V 2200 mAh packs
  • 100–240 V AC input works worldwide
  • Class 2 switching supply with CE and RoHS compliance

10V DC adapter for Lego Mindstorms NXT/EV3

This 10V DC adapter powers the Lego Mindstorms NXT and EV3 rechargeable battery packs. It connects to mains supply and delivers a regulated 10 volt output for charging. The unit is a new, corded electric power supply designed for these specific robotics systems.

Suits owners of NXT and EV3 rechargeable batteries

Builders who use the 7.4V 2200mAh lithium-ion battery with NXT or EV3 sets can charge it with this adapter. It is not for users who need a USB charger, a lower voltage supply, or a power source for non-Lego devices. The fixed 10V output limits it to compatible battery packs only.

10V DC fixed output voltage

The adapter provides a constant 10 volt DC output, which is the critical specification for charging the 7.4V battery packs used in Mindstorms NXT and EV3. Using a different voltage risks damage or failure to charge, so this figure determines compatibility.

Highlights

  • Charges Lego Mindstorms NXT and EV3 batteries
  • 10 V DC output matches original transformer specs
  • 700 mA charge current for 7.4 V 2200 mAh packs
  • 100–240 V AC input works worldwide
  • Class 2 switching supply with CE and RoHS compliance

Specifications

No published specifications for this item yet.

Questions about this item

Does the 10 V DC adapter run hot or draw much power when charging a 7.4 V 2200 mAh battery all day?

It supplies 10 V at up to 700 mA, so continuous charging stays within a low Class 2 power envelope and generates minimal heat.

What must I already own to use this charger with my Mindstorms kit?

You need a compatible 7.4 V 2200 mAh lithium-ion rechargeable battery pack for NXT or EV3.

Will the 10 V 700 mA output work with older 7.2 V 2200 mAh packs I still have?

Yes, the adapter is listed for both 7.2 V and 7.4 V 2200 mAh packs, so it charges either voltage.

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