This is a battery holder for the E-Flite 1S 200maH LiPo battery
This battery is for the Inductrix FPV version.. but may also hold other 1S batteries with a 13mm x 6mm body size.
This might fit others like the mylipo.de 1S 205maH batteries too. (untested) for the Tiny Whoop
Update: Oct 21, 2016: uploaded new version.. the previous one had some issues when printing.