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We should give some headroom here, so aim for at least 150Wh of energy storage, or limit the fans to a lower current draw. We should check how much room we have for the fans, and also check with Adrian to see if we should be using smaller ones. We have asked Adrian about the number and specs / size of the fan because we might downsize them. This would mean requiring a smaller battery.
This means we will need at least a 10S2P of the NiMH C size cells, but 3P would be preferable.
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