ok terminatorX5, will have a tinker in the back and see if the indicator says time for recycling, although motordavids writeup on replacement says his indicator showed all was fine in terms of acid level yet he still needed a new one, and this vent hole business is weird....not all replacements have a vent hole so you have to punch out a hole in the battery to put the tube in, man not too keen on that either...whats the best way to do this voltage test you mention?