Thanks for the advises, I too feel its best to go for a new one.
I tried to jump start with a cable, didnt work. so i swaped the smaller battery of my townace and just manage to start the LXH43. Then I replaced the old amoron battery in to the LXH43 kept the vehical on start for an about 45mins. even after that there was not enough charge in the battery to even turn on the CD player, It seems battery is totally drained.