Quality Pint Battery Box

The Quality Pint battery box was designed to take advantage of the extra volume allowed by the TFL B.A.N.G. Bumpers to fit a custom 27s1p 21700 MOOD Frame battery pack, with space for an Ennoid XLITE-V4 32 BMS, a generic 5V LED strip, and a Future Motion GT S-series charge port.

Design Features:

• REQUIRES TFL B.A.N.G. Bumpers! NOT compatible with stock Pint X/S bumpers!

• Fits a full GT S-series configuration battery pack in the Pint X/S frame!

• Optimized for MOOD Frame battery packs.

• Compatible with the stock Future Motion GT S-series charge port.

• 2.25mm minimum wall thickness throughout the box.

• Optimized tire clearance while still allowing a larger battery pack.

• Standard Pint LED window for a 128mm LED strip.

• Button head screws were chosen for maximum clamping strength without damaging the plastic box.

• All threads are in the lid, zero threaded inserts!

• CNC lid protects the battery from rider weight.

CNC Instructions:

• Order the lid from a service such as JLC or Xometry from anodized 6061 aluminum. Be sure to include the threads diagram PDF.

Print Instructions:

• Print the box in the strongest material you have access to. I recommend ordering a Nylon SLS print from JLC or Xometry for best results and durability.

• Print the gasket in a soft, compressible filament such as 85a TPU. A harder durometer such as 95a will not compress as much and thus have a weaker seal, and will risk stripping threads as you close up the box.

Assembly Instructions:

• You will need the following screws to assemble the box:

  • M3 x 10mm button head (quantity: 6 screws)

  • M3 x 50mm button head (quantity: 2 screws)

  • M4 x 10mm button head (quantity: 5 screws)

• Cut and adhere a 1mm adhesive EVA foam sheet (found at most craft stores) to the interior ceiling of the lid to protect the battery and electronics.

  • (Optional) A layer of Kapton or Fishpaper tape underneath the foam layer will add insulation and protection in case something wears through the foam over time and many miles of riding.

• Cut an acrylic strip to fit the LED panel (131mm x 11mm) from a thin acrylic sheet (common material, check your local hardware store.) Adhere the window to the outside of the box using a bead of waterproof silicone.

• Fully insert and secure the charge port using waterproof silicone. It should lightly snap into place when the gasket falls into the groove.

• Secure the M20 cable gland with waterproof silicone.

• Use a Goretex waterproof patch to cover the vent hole on the opposite side as the charge port.

• When closing the box after final testing, run a bead of waterproof silicone around the entire rim of the box to ensure the best watertight seal possible.