Dual C-cell & D-cell to 18650 Adapters
Obliczymy ostateczną cenę na podstawie wybranego pliku. Sprawdzisz ją i zaakceptujesz przed płatnością.
Zapisane na tym urządzeniu.
Barrels to adapt 1S 18650 Li-ion for use in 2S C-cell and D-cell devices
- Ocena
- 5 / 5
- Polubienia
- 16
- Pobrania
- 171
- Wydruki
- 2
- Wyświetlenia
- 817
- Oceny
- 1
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Electronics
- Licencja
- Creative Commons — Attribution — Share Alike
Warning!
A typical fully-charged Li-ion cell starts at 4.2v, exceeding the 3v of a 2x alkaline cell configuration by ~40%. While most modern electronics have sufficient design margin for the higher voltage, not all systems are capable. It's on you to ensure your specific device doesn't let the smoke out.
Also be aware that unless your 18650 cell includes protection, voltage should be checked periodically to ensure it doesn't fall below the lower limit of your cell (typically 3.0v) during use and damage your battery.
Use Examples
- Harbor Freight Electronic Fly and Insect Swatter (2x D)
- Motion Sensor Trash Cans (both C and D-cell)
Hardware
1x Adapter
14AWG solid copper wire, 50mm / 70mm (C / D, respectively)
Print Notes
ABS or PLA recommended with 0.2mm layer height (or smaller) and 2-walls or more. I've modeled in a sprue on the positive end for optimal adhesion, so flip sprue-side down with support (needed for the wire radius standoff). An outer brim is also recommended for “guaranteed” adhesion in ABS. 15% infill is plenty.
After removing the sprue and support pad, you may need to enlarge the wire hole with a pick or similar tool before assembly.
Assembly
Thread the 14AWG wire into the outer hole, leaving equal excess on both ends of the via. Bend over the battery-side end into the groove, then pull on the outer-end to remove any free length from the inner bend. Now bend the outer free-end of the wire into the groove and install a 18650 cell.
Updates:
2024-1223: Added FreeCAD source (parametric)