Ministry of Economy, Trade and Industry
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Joint Press Release with the Consumer Affairs AgencyRecall of Batteries for Electric-motor-assisted Bicycles Imported by Kanda Musen Denki (Product Replacement)

Serious product accidents occurred involving batteries for electric-motor-assisted bicycles imported by Kanda Musen Denki, causing the products to ignite and to burn their surroundings.

The Ministry of Economy, Trade and Industry (METI) received a report on the incidents and announced them as serious product accidents on October 15, 2014, in accordance with Article 35 (1) of the Consumer Product Safety Act, which relates to accidents of unclear origin in a product.

To prevent further accidents, on June 17, 2014, the company announced an alert to consumers about use of the products in question on its website, and the company has been discussing measures concerning the accidents. In addition to the notice, on December 15, 2014, it also announced on its website that it requests owners to stop using the products and that it will provide a free replacement service for the products.

METI would like to alert consumers who have purchased the products in question to make use of the replacement service offered by the company in order to prevent any further accidents.

1. Nature of the accident and recurrence-prevention measures

1) Nature of the accident

Four serious product accidents involving batteries for electric-motor-assisted bicycles imported by Kanda Musen Denki occurred, causing the products to ignite and to burn their surroundings. The accidents were reported to METI in accordance with Article 35 (1) of the Consumer Products Safety Act (Control Nos. A201300340, A201400159, A201400179, and A201400418).

The cause of the accidents is under investigation, but it is thought that insufficient condensation prevention measures in the products deteriorated insulation performance on the control board, causing the products in question to ignite.

In addition, five product accidents were reported to the National Institute of Technology and Evaluation (NITE) as those that are not subject to Article 35 (1) of the Consumer Products Safety Act.

2) Recurrence-prevention measures

To prevent further accidents, Kanda Musen Denki publicized the occurrence of the accidents on its website on December 15, 2014, and will provide a free replacement service for the batteries in question.

2. Products to be recalled: outline of the products and verification methods

1) Product name: Batteries for electric-motor-assisted bicycles

The products in question include: those mounted on TASKAL series, amadana series, and RUNFUN series of electric-motor-assisted bicycles.

Table of the bicycles on which the products in question are mounted
The products to be recalled are batteries mounted on such bicycles with either of the product names on the frame of the body: TASKAL, amadana, or RUNFUN.

Name of the series TASKAL amadana RUNFUN
Overall view
Product names on the frame

2) Appearance of the products and verification methods

Number of models: 4
Quantity: 28,959 batteries

Appearance

Product number (model number) of the batteries to be recalled, sale period, quantity
Product number (model number) Sale period Quantity

KMD-BC 6.6Ah (KMD-BC6) From April 2012 to July 2014 28,959 batteries
KMD-BC 8.8Ah (KMD-BC8)
KMD-BT 6.6Ah (KMD-BT6)
KMD-BT 8.8Ah (KMD-BT8)

3. Actions by the company

The company will provide a free replacement service for the products in question.

4. Notice by the company

Website: December 15 (Mon.), 2014
Requesting retailers to cooperate in the product recall: December 15 (Mon.), 2014, onward

5. Alert to consumers

Anyone who has purchased any of the products above should immediately contact the company as below (contact counter will open on December 15, 2014).

6. Contact

Contact counter exclusively for the program for free replacement service concerning batteries for electric-motor-assisted bicycles:
Telephone:
0120-565-880 (exclusively for replacement; toll free)
Service hours:
Until January 31, 2015: From 9:00 to 18:00 (every day)
From February 1, 2015: From 9:00 to 18:00 (every day excluding Saturdays, Sundays and holidays)

Website exclusively for replacement
http://taskal.laox.co.jp/project/External Site Link(in Japanese)

Release date

December 15, 2014

Division in charge

Product Accident Information and Analysis Office, Product Safety Division, Commerce, Distribution and Industrial Safety Policy Group

Related Information

Product Safety
Ministry of Economy, Trade and Industry
1-3-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-8901, Japan Tel: +81-(0)3-3501-1511
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