The AlphaBot uses batteries 18650.
But does anyone know if it should be the ones with the button top or the flat top?
Heres a button top: https://www.amazon.com/AllForBest-Protected-Panasonic-18650-Battery-Flashlight/dp/B0821SRZ31/ref=sr_1_1?crid=370I0UOE79SVT&keywords=panasonic+18650+battery+button+top&qid=1576283559&sprefix=panasonoic+18650+battery%2Caps%2C247&sr=8-1
And heres a flat top: https://www.amazon.com/Authentic-Rechargeable-Replacement-18650-LG-Battery-Flashlight/dp/B07YWRYZL4/ref=sr_1_8?crid=370I0UOE79SVT&keywords=panasonic+18650+battery+button+top&qid=1576283559&sprefix=panasonoic+18650+battery%2Caps%2C247&sr=8-8
How does one find information like this out? I've been looking through all the AlphaBot catalogues, electric shops, asking electricians, electric store clerks, google, raspberry pi fb chat groups and whatnot and nobody seems to know this.
To put this into a context, I have already wasted $150 purchasing 18650 batteries, only to find out they are not the version of 18650 batteries that are fitting. This time I really want to purchase the correct type of 18650 batteries. The other time I purchased 18650 batteries for the AlphaBot in a vape shop, only to find out that they are slightly too large for the AlphaBot.
Apparently 18650 is not the same as 18650.