I have an old car and battery with the Negative dis connected, I charge it, 2 days later it shows 70% charge of 12v or so, is it a junk battery, I think so. Only the Positive is connect but the case is clean
I've no idea what the answer is, but I think I'd clip a headlight to it to drain it down until the light dimmed, then recharge again and see what it looked like. And, ask how he's measuring the charge remaining.
Not entirely clear on the question, but if the battery in question is a conventional type, more than about 5 years old and has sat uncharged in the vehicle for some time you can safely consider it junk even if it seems to take a charge. It might hold out for a couple start cycles in the car and then will surely leave you stranded in short order.
It's either an exchange for a new battery core charge, a lead sale to a scrap dealer, or if you really want to extract every ounce of service life from it, use it in something that won't leave you stranded like a lawn tractor.
Read your original message. You were drunk when you wrote it. Sometimes you're lucid, and sometimes you're not. I don't care enough to watch for a pattern, but I wonder if your most incoherent messages are written from late afternoon onward.
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