The easy-to-use interface that includes filters, compare options.
I bought a triangle pack in March 2016, but the battery suddenly died in Oct 2016.
I reported the issue to EM3ev and they were very concerned. Asked me to do a few tests and it was determined that the battery had a faulty BMS that resulted in two rows out of 13 rows of cells died.
They did a replacement pack with upgraded batteries for free. Even though I offered to pay USD300 to share in the cost, they refused! I received the new battery 2 weeks after I first reported the issue.
They let me keep the old battery and I was able to salvage about 100 of the cells.
The new battery has been installed for the last month and has already done 700km with no issues.
I would like to commend EM3ev for their professionalism and pride in their company and products.