https://mars.nasa.gov/mer/mission/technology/power/
it is read
… .The Sojourner rover on the Pathfinder mission carried one 40-amp-hour lithium battery. The Mars Exploration Rovers carry two 8-amp-hour lithium batteries. During the rovers' prime missions, their solar arrays were able to produce about 900 watt-
hours of energy per martian day, or sol. Well into the extended mission, efforts to drive Spirit and Opportunity strategically through and toward solar-rich areas is providing up to 410 watt-hours per martian sol. ......
Or does it seem that Martian dust permitting we can have something between 400 and 900 watts per hour? About 1 square meter of solar panels !! (which seems to be seen in that article) ... it seems too much.
Also because On earth 3.2 m ^ 2 of panels (the ones I find on the market) give about 600 watts per hour and 40 kg more even with an irradiation of the sun about 3 times higher! And it seems to me to be too little here
But it would be better to put two recharging generators for lithium batteries…. 45 kg each . Two multimission radioisotope thermoelectric generators (MMRTGs) in total should have a safe 250 watts with 90 kg more.

In conclusion ... even if I put in 24 lipo with a total weight of 13.8 kg I should be with the energy package under 150 kg and with 850 about 850 watts for the PNN on Mars
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