18650 batts. same ones in most e-cig vaporizers so any local vape shop should have emthe best IMO are either the LG brown 18650s(known as turds) or the green/blue samsung 25Rs 18650s (known as smurfs)
make sure you buy real ones though as there are alot of fakes ones out there.
judging by a review video I saw on youtube I presume these come with the blue Samsung 25R battteries
PS Please bring in more Hike and Strike walking sticks.
this unit comes with no instructions unfortunately. Hopefully someone that owns one can help me out. The charger appear to plug into the middle of the baton, but only inserts about half way into the charging hole. Green light on the charger is on whether its plugged into the baton or not. How do you know when it is charging, and when it is fully charged