Aldi Xfinity and Ryobi (south africa) battery connector

thingiverse

Edit 2019: Added a new version with 6mm mounting holes for countersunk screws. This STL was created using DesignSpark Mechanical v4 instead of v2, hopefully fixing the non-manifold issue from before. I had no issues slicing with Cura either way. Holds an Xfinity 2.0Ah or 4.0Ah battery, internal view: https://imgur.com/a/Q3I3x Edit: Thanks to HowardB in comments, it also fits the Ryobi 18V batteries, which look identical to your Aldi Xfinity ones (these may be South African only). CLB-1813X - 1300mAh BAT1860X - 1500mAh XB-3000 - 3000mAh The later batteries hold Samsung 20Q inr's and are fitted with a charge display, at <$20... Great value. I assume the controller specs have remained the same. Suspect the 4.0Ah cell has higher discharge max but do not own one yet. Battery BMS cutoff current calculated at 25.3A, full charge 21.25V, discharge cutoff at 13.50V. I wanted this to drive CNC stepper motors and controller. The retaining holes for standard blue electrical spade crimps are 7mm diameter and hold quite firmly. You might need to round the crimp base off with pliers to get it to fit snugly. The wire holes are 3mm, and I used a heavy-duty 10g silicon wire which was 3.5mm diameter. Instead of drilling and weakening the plastic, I used a warmed screwdriver blade to open the holes up a bit. With a press-fit wire, the blades are not even trying to move when unplugging the battery and line up quite well. The clamp works the same as drills etc; you have to use the button on the pack to remove the battery. The electrical blades do not go in as far as tool blade pins but clamping is done near the tip so length is no issue. It seems to be an adequate connection. Heard the model had issues, so I ran it through Netfabb and uploaded the fixed version also.