Awesome product oneif my batteries just went bad though so let see how warranty works.
My Wowgo mimi 2 battery popped after 2 years of use, ordered this as a replacement. Arrived about a month after purchase, which was expected since it's coming from oversea.
Comes with new charge port, which was nice. Fully water-proofed around the battery pack area. I made sure to apply silicon to the connector, and a bead around the casing to fully waterproof the battery.
I have not done a full range test, but estimate around 12 miles per charge.
I used the original battery from the S2 for the last 12 months and something between 300-400km (180-250 miles) before it finally died. The battery drained out pretty fast during the last 2 months so I ordered this replacement. Based on the specs it's the same than originally used so everything should be fine. There was some work necessary as the connector was not the same as build-in - but no big deal.
Bought this battery and enclosure for my diy build, at first wowgo forgot to send me the enclosure with the battery I ordered but the resolved that and made it right, both items work great!
Great battery with a really good range for its compact size