Battery holder for Eachine E52 and JY018 Mini Foldable RC Pocket Drone

The battery on the E52 and the JY018 rc quad copter drones that are available from banggood, come in a plastic 'carrier'. The actual battery within the carrier is a 721855 3.7v, 500mha battery, with a JST plug. The batteries seem quite common and are pretty cheap, but many don't come with the correct 'carrier / adapter' for the above quad-copters.

An example of the price of these batteries is this listing on ebay = https://www.ebay.co.uk/itm/5pcs-3-7V-500mAh-LiPo-Battery-5in1-Charger-for-UDI-