Printed back cover with a 30 mm fan and a 10 Ah battery
Replaces the metal back with a printed cover that holds a 30 mm fan, a heatsink and a flat 10,000 mAh pack in place of the 18650s.
What it takes
- 3D print
- Disassembly
- Soldering
- Purchase required
Difficulty 3 of 3 — advanced.
Details
Leon2048's Thingiverse design was the first widely shared answer to both heat and runtime: a printed rear cover with a fan cut-out and room for a single 10 Ah LiPo. The fan needs power and the pack needs wiring to the battery board, so it is a soldering project as well as a print.
It also comes up in the forum's plastic-back-panel discussion, where a non-metal back is noted to help Wi-Fi as well.
Links
Open at ThingiverseRelated mods
A 40-pin FPC ribbon from the mainboard's GPIO connector to a breakout board gives a fan its 5 V and ground inside the case.
The adapter board's PWM fan header runs a Raspberry Pi, Waveshare or EDATEC CM5 cooler; printed back covers make the room.
Printed rear cover with a cut-out so the official Raspberry Pi passive cooler (or a Waveshare active one) fits on the compute module.
Remix of the passive-cooler back that gives an EDATEC active cooler its height when the CM5 sits on the HackerGadgets adapter.
A robust printed rear cover that fits the HackerGadgets upgrade boards, the AIO v2 and an active CM5 cooler at the same time.
Two layers of 0.5 mm thermal pad and a small aluminium heatsink on the CM5 SoC, held with thermal tape — about 10 °C cooler under load.