QX7 2x18650 battery holder
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EDIT 27.02.21: after using it for a few months, i discovered that the springs lose some of their tensions and if the radio is bumped hard enough, it will momentarily lose contact. As such, i have made the 18650 slots shorter, making for a tighter fit (spring more compressed). Simple 2x18650 holder for QX7 transmitter, there are 2 versions available, one that has the cells in top right and the other one that has the middle right (middle version is not tested, but all critical dimensions are the same). Uses AA style battery contacts, found on ebay or electronics resellers such as TME. Specific one used for measurements: https://www.tme.eu/ee/details/keys5201/patareid-hoidikud/keystone/5201/ https://www.tme.eu/ee/details/keys5223/patareid-hoidikud/keystone/5223/ To create it in the way intended, bend the extending tab on the contacts down 90 degrees , solder the wires in place and then glue them in the slots. (see pictures) It is also possible to use the other solder holes (not the tabs).
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