Xfinity battery holder for hobby vehicles etc.

thingiverse

/* ---------- USE AT YOUR OWN RISK ----------------------------------- Please ensure that your electrical design is safe. Lithium batteries are delicate and potentially dangerous. Hazards include: * explosion and destruction of the battery due to short circuit * destruction of the battery due to prolonged overload and overheating * fire, burns to skin or plastic damge due to incorrectly rated wiring * incorrect polarity will damage most electronics. Aldi sell Xfinity batteries and chargers (and associated power tools) a few times a year as "special buys" in their supermarkets in Australia, and possibly elsewhere. The batteries are nominally 20V and either 2AH or 4AH. Most of their tools use one battery but the lawn mower, chain saw and pole-pruner use two. The pins are Jaycar CAT.NO: PT4631 (Non-insulated Spade Plug 6.3mm Pk 10). Other types could be used, but make sure that they are at not shorter than these. Attach the wires to the pins before inserting them into the plastic body. The pins should be a tight fit in the body, if not, once you have established that everything is working, add a very small drop of super glue. Unfortunately Aldi do not specify current or power ratings for their tools or batteries. Examination of their water pump shows an 8 amp manual reset circuit breaker in series with the battery holder. It would be prudent to install similar in your design. The variable "baseplate"in the SCAD file determines if a base plate will be printed. This consumes far more plastic (and more time!) but makes a neater job and also means that the battery will be positively retained until its release button is pressed. Either way, try to mount the battery in such a way that it will not get wet. ---------- USE AT YOUR OWN RISK -------------------------------- */