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Europe’s Biggest in E-Bike Batteries Offers 4-Year Warranty


KARLSTEIN, Germany – BMZ is extending its warranty term to 4 years for its batteries used at Model Year 2017 e-bikes. The 48 months term applies in particular for BMZ batteries used in all electric bikes that are distributed through dealer cooperative ZEG.

Europe’s Biggest in E-Bike Batteries Offers 4-Year Warranty
Next to 4 year warranty for its batteries on ZEG e-bikes, BMZ also offers a service tool for dealers. – Photo BMZ

BMZ is Europe’s biggest factory for e-bike batteries. Last September the German company launched its new 3Tron battery system which is composed of the world 1st 21700 cells. With 3Tron the lifespan of an e-bike battery is increased to 12 years, claims BMZ. 3Tron e-bike batteries are expected for Model Year 2018 e-bikes. And maybe they will feature an even longer warranty term. In the meantime for Model Year 2017 electric bicycles a 4 year term stands which, as said, applies to e-bikes distributed through ZEG.

 Service agreement

For the 4 years warranty term BMZ and ZEG have signed a service agreement. According to this agreement, BMZ offers a warranty to the buyers of ZEG e-bikes that their batteries will have a residual capacity of more than 60 percent after a period of 48 months. This means, if a customer rides his e-bike for a distance of 100 kilometers today, he can still ride it for 60 kilometers under the same conditions after four years. BMZ offers a warranty of 24 months to for rental e-bikes.

 Warranty claims

The date of purchase by the end customer is key when it comes to asserting warranty claims. Proper handling of the batteries and chargers is a prerequisite for granting the warranty. For chargers there is a 24-month warranty. A comprehensive warranty agreement, which will be sent to the ZEG dealers separately, specifies all the details.

 Long-standing partnership between BMZ and ZEG

BMZ and ZEG are linked by a long-standing partnership. ZEG, ‘Zweirad-Einkaufs-Genossenschaft eG’ is Europe’s biggest dealer cooperative. Some 960 independent bicycle dealers based in the German speaking countries as well as in the Benelux and France are ZEG members. The in Cologne, Germany based cooperative maintains business relations with all renowned bicycle and e-bike brands.

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