Battery powered printer

How many car batteries would it take to run a reprap for about 2 hours?

Typical power requirements, with some margin, after warm up phase:

- 1.5 A per stepper
- 2 A extruder heater
- 8 A heated bed
- (0.1 A controller)

Accordingly:

8 A without heated bed, 16 A with heated bed. With a typical small car battery (45 Ah) this means 5 hours of printing without heated bed, 2.5 hours with one.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

Have you done a search? I'm sure this Q was asked before.

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Waitaki 3D Printer