Hey folks! I travel back and forth between China and the US for work every three months, and every time I return, my BMW 430i's battery is dead. I'm looking for a DIY solution to keep the battery charged while I'm away without spending too much on replacements. Ideally, I want something automatic that I can just set up and forget about. I was considering using a backup power station like Ecoflow or Jackery as a trickle charger, but I'm not sure if that's the best way to go. Any recommendations on DIY circuits, safe setups, or alternative ideas would be greatly appreciated!
1 Answer
You might want to look into a battery tender specifically designed for this. They’re built to keep your battery charged while you’re away, and they're pretty affordable—often less than replacing a battery. Jay Leno even uses them on his cars! Definitely better than trying to rig something yourself, unless you really want a project.
True, there are specialized ones that work for long-term situations. Seems like spending a bit upfront could save you a headache later!