I bought the battery to increase the range for long rides. It arrived in good shape and fully charged.
Bought this 350 step through second hand. Battery was about a year old and then we had to purchase a new one. New battery is great, but the other didn’t last that long.
350 battery replacement and backup battery good so far. Managed a 52 mile / 4500 ft of elevation gain ride yesterday. Can’t complain!
My battery on assist 2 lasted 13 miles on a steep 13 mile climb no breaks in the climb.