If you are looking to make small extender battery for you ebike or escooter, this might be for you. It is original battery in nice housing, 20 Sony VTC5/VTC5a cells, 5.2Ah. Nice to take with you if your battery dies or to connect it parallel to your to ride longer. Easy to open, you can use pins outside or make your own wire from inside. Led charge status on one side too.
Price: 60Eur +shipp