The storms all vary slightly in their overall size and speed. So you may have just gotten extra unlucky with a large, slow storm. In the next update there will be consumable backup batteries that you can stockpile similar to oxygen filled canisters that will allow you to recharge your battery while out on an EVA. This could also be used to then transfer back to the habitat battery to keep the habitat going during a storm. Unlike oxygen filled canisters though, I think I may implement a failure rate for the batteries where they have a chance of no longer holding a charge, at which point they would change into "Expired Chemical Batteries" (which are an item that technically already exists in the game). This would require you to craft additional batteries.

Fixed the issue and it will be in the next patch.

Somehow your reserve battery charge at that location ended up in the negative. I've had that happen with battery values in the past and obviously I screwed up in preventing it completely. I'll get a fix out soon. The fix should actually reset the battery back to zero so that your current save would still function.

Yes. Just a minor bug fix update. Shouldn't cause any issues loading an old save. A larger feature update is due hopefully before Christmas. 

I'm leaving for the weekend, so I'll have to check it when I get back next week, but this will let me load your save in the editor so I can inspect whatever value might be going funky. Thanks.

If it's still behaving the way you describe then it would be even better if you could provide me with your save file so I could investigate myself. The instructions to access the save file are available on the home page of this forum.

Hmm. Well if there were any solar panels connected to the electrical module and there were no other component failures with it then it should have started generating a charge for you. It should no longer require a reserve charge itself in order to begin charging the battery. You're certain that it didn't have any component failures and that the power switch was turned on?

Made a quick fix for this. Should be available soon.

Not sure why I never marked this as complete, but you can now turn off head bobbing and swaying.