S.A.R.T Development Blog

Day 90 – Energy Issues

Powering the Robot

The new Lithium Polymer batteries that we bought arrived a few days ago, so I started thinking about how we would power the NUC for any extended period of time.

After some quick research on the internet, I found that at absolute worst case scenario the NUC draws around 2.5 amps.  We were considering powering everything with a couple of Lithium Polymer batteries, but if a single 1000 mAh battery connected to just the computer we’d get around 24 minutes at absolute worst case scenario.

1000 mAh / 2500 mAh = 0.4 hours

0.4 hours * 60 = 24 minutes

Obviously connecting more batteries in serial will give us more power, but I’m not completely sure if you can.
EDIT: you can, but connecting more than one LiPo in series is sketchy at best – I’m not really willing to risk it.


Powering the Briefcase Controller

Aaron suggested that we use a UPS, which will allow us to connect the display, PC, POE Injector with the Australian standard plugs, which we all think is a fantastic idea… if it fits in the briefcase.  Otherwise, we might have to MacGyver something on the top with some duct tape and zip ties.

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