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9833-2 LEGO Mindstorms NXT Transformer thumbnail image

9833-2 LEGO Mindstorms NXT Transformer
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9833-2 LEGO Mindstorms NXT Transformer
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  • Transformer thumbnail

LEGO 9833 Transformer is a Mindstorms set from 2006 currently valued at $32 for new and sealed sets. Originally retailing for $23.99, the set has gained 33% in value since retiring in March 2012, with annual appreciation averaging 2.09%. On the used market, values range from $12 to $14 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Transformer since August 2018. Medium accuracy
LEGO 9833-2 Transformer is a Mindstorms NXT accessory set released in 2006, containing 1 piece. It consists of a standard 9V transformer and charger designed to recharge the LEGO MINDSTORMS NXT #9798 Rechargeable Battery. The unit connects to an AC outlet and was sold as a support component for the NXT system rather than as a construction set. Compatible alternatives for the same battery include chargers #9693 and #8887.

A new and sealed Transformer is currently valued at around $32, with annual growth of approximately 2%. The average used price is $12 for those in good overall condition. New and sealed listings currently range from $25 to $28. Based on current trends, this set could be valued near $32 within the next year. The set was available for 65 months, from October 2006 to March 2012.
All regions

For Sale (New/Sealed)

 (US) Genuine LEGO 9833 Mindstorms Transformer Power AC Adapter Battery Charger
BrickEconomy Choice
$24.99
(US) 9833 45541 Mindstorms Transformer Power AC Adapter Battery Charger $25.00
-21.4%
(US) DACTA 9833 70931 AC Transformer Charger (New) $25.00
-21.4%
(US) NEW Lego 9833 MINDSTORMS 9V Transformer AC Adapter Battery Charger 4237771 $27.50
-13.5%
(US) DACTA 9833 70931 Train 9v Speed Regulator Power Supply Read Description $40.00
+25.8%
All regions

For Sale (Used)

 (US) Used - EUC Genuine LEGO 8887 Mindstorm EV3 NXT Transformer Power Adapter Charger Supp...
$12.99

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 9833-2 Transformer.

Sets in Mindstorms / NXT

8527 Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 577
Availability Retired
8527 LEGO Mindstorms NXT
Retail $249.99
Value $405.08
Growth  +62.0%
Annual growth 2.3%

8529 Connector Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 7
Availability Retired
8529 LEGO Connector Cables for Mindstorms NXT
Retail $9.99
Value $19.98
Growth  +100.0%
Annual growth 3.7%

8528 Converter Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 3
Availability Retired
8528 LEGO Converter Cables for Mindstorms NXT
Retail $9.99
Value $36.39
Growth  +264.3%
Annual growth 9.6%

9798 Rechargeable Battery

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9798 LEGO Mindstorms NXT Rechargeable Battery
Retail $54.99
Value $59.29
Growth  +7.8%

9841 NXT Intelligent Brick

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9841 LEGO Mindstorms NXT Intelligent Brick
Retail $169.99
Value $326.87
Growth  +92.3%
Annual growth 6.5%

9842 Interactive Servo Motor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9842 LEGO Mindstorms NXT Interactive Servo Motor
Retail $24.99
Value $28.24
Growth  +13.0%
Annual growth 2.6%

9843 Touch Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9843 LEGO Mindstorms NXT Touch Sensor
Retail $24.99
Value $32.36
Growth  +29.5%
Annual growth 3.7%

9844 Light Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9844 LEGO Mindstorms NXT Light Sensor
Retail $24.99
Value $16.99

9845 Sound Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9845 LEGO Mindstorms NXT Sound Sensor
Retail $34.99
Value $57.66
Growth  +64.8%
Annual growth 4.9%

9846 Ultrasonic Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9846 LEGO Mindstorms NXT Ultrasonic Sensor
Retail $39.99
Value $45.76
Growth  +14.4%
Annual growth 1.3%

9847 Bluetooth Dongle

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9847 LEGO Mindstorms NXT Bluetooth Dongle
Retail $32.50
Value $32.00

Compass Sensor for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
LEGO Compass Sensor for Mindstorms NXT
Retail $54.99
Value $73.84
Growth  +34.3%
Annual growth 3.7%

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About Mindstorms NXT

The LEGO Mindstorms NXT programmable robotics kit released by LEGO in July 2006, replacing the first-generation LEGO Mindstorms kit. The kit also includes NXT-G, a graphical programming environment that enables the creation and downloading of programs to the NXT.

NXT consists of 30 sets that ran from 2006 to 2011. As of today, 8527 Mindstorms NXT is the most valuable NXT set with an estimated new/factory sealed value of $405.
Summary
Mindstorms NXT Transformer set 9833 was released on October 29, 2006, retailing for $24, it has since been retired. New, unopened sets are valued at $32, used ones can be found for $12.
Read more
This standard 9v transformer/charger plugs in to an AC outlet to recharge your #9798 Rechargeable Battery for LEGO® MINDSTORMS® NXT. 9 volts; requires AC outlet. Related charger is no longer available. If charger is also needed, please order #9693 and #8887.
Description provided by LEGO©