They have a special on it. $136 for the battery.
Probably many people return it, because they don't know regular 14.4V car alternator chargers shut off the BMS on the battery. (Hence the diodes, but you can also solder some resistors in parallel with the charge wire).
I bought mine nearly 2 years ago. Just verify if the size is still similar to the stock battery.
https://www.amazon.com/dp/B0BGRZP5Q6