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9798 LEGO Mindstorms NXT Rechargeable Battery thumbnail image

9798 LEGO Mindstorms NXT Rechargeable Battery
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9798 LEGO Mindstorms NXT Rechargeable Battery
  • Rechargeable Battery thumbnail
  • Rechargeable Battery thumbnail

LEGO 9798 Rechargeable Battery is a Mindstorms set valued at $59 for new and sealed sets, up 8% from an original retail price of $54.99. The set retired in September 2010 with annual appreciation averaging 0.48% since. Used copies are valued between $20 and $25 depending on condition.

Set Value (New/Sealed)

This represents the current new/sealed value of the set Rechargeable Battery since October 2007. Medium accuracy
LEGO 9798 Rechargeable Battery is a Mindstorms NXT accessory released in 2006, containing 1 part. It is a lithium-based rechargeable unit designed for the NXT Intelligent Brick, increasing the brick’s depth and potentially requiring model adjustments. The battery is recharged using Transformer 9833 and is intended for use with the LEGO Mindstorms NXT set 8527.

Based on current trends, this set could be valued near $60 within the next year. The set was available for 35 months, from October 2007 to September 2010.
Rechargeable Battery is a rare LEGO set. We have not seen set 9798-1 available in good/new condition online or in retail stores for over 2 years. Given how hard it is to find, the estimated value in new condition of $59.29 may not reflect its true collectible worth.

For Sale (New/Sealed)

There are currently no new/sealed listings available for 9798 Rechargeable Battery at this time.
All regions

For Sale (Used)

 (US) Used - NXT Mindstorms Rechargeable Battery Charger for Very Light Gray NXT #9833
$19.99
--1.2%
(US) Used - Some scuffs to top of box...not tested...sold as is $20.00
(US) Used - This has been tested and holds a charge, we also sell the set with the chargin... $25.99

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%

9833-2 Transformer

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9833-2 LEGO Mindstorms NXT Transformer
Retail $23.99
Value $31.80
Growth  +32.6%
Annual growth 2.1%

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 Rechargeable Battery set 9798 was released on October 24, 2007, retailing for $55, it has since been retired. New, unopened sets are valued at $59, while used sets sell around $20.
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No more disposable batteries!
Add the rechargeable battery to your LEGO® MINDSTORMS® NXT robot and end your need for AA batteries! Rechargeable battery is lithium. Requires #9833 Transformer, sold separately, to recharge battery. Please Note: Building instructions for NXT models do not include instruction for incorporating the rechargable battery. This battery will increase the depth of your NXT intelligent brick so you will need to adjust your models accordingly.
Description provided by LEGO©