Battery Charger?

2025 MAZDA CX-5
2,000 MILES
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PLUTO34
  • MEMBER
  • 1 POST
I park underground where I have no AC outlet for electric power. I don’t drive my gas powered vehicle much so the battery goes weak, then dead.

I'm not looking for a jump starter. I’m looking for a battery charger that works like this…, I charge a portable battery device using my home's 120ac outlet. I take the charged device to my car and use it to top off my weak car battery. I’ve looked everywhere but can’t find such a charger. Do they exist?
Apr 11, 2026 at 5:21 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Nope, you must have an 120 volt outlet for charging or remove the battery for charging and then reinstall it. Once the battery is charged keep the negative cable off so the battery stays good.
Apr 12, 2026 at 9:45 AM
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