today, i repaired my dads aircompressor. put an adapter on it so i can use my plane batteries. its works 100% better than the lead-acid 12v that was in it. HOWEVER...it was not good enough, dad wants the orginal battery (long been out of date) and he is too #$#$ lazy to carry the extra battery (half the weight of orginal) and connect it with the plug i soldered on it. what a lazy A##, he has gotton to be. fussy when he gets a new battery how can he use it since i put the connector on it...uhhhh...wire cutters, unsolder the connector. does this man even think anymore...i mean im the person that has the disability, not him! Never a thank you, or good job, your smart....NOTHING, what i get is....how am i gonna use it now, why the ^%$ did you do that, you never help out around the house, you owe me more money....so clearly NOBODY in real life likes me. everyone treats me the same way.