Where did you buy your battery from? In Australia? Also is it easy to convert from lead acid batteries to lithium ions and then there's the charger to consider. Would the old charger work on the new battery, possibly not. I am pretty clueless. $175 gets me new batteries for 2 bikes, I have a friend who will rewire them for very little cost. I need to replace the batteries on the second bike so I can sell it in working order to try and recoup some of the money I foolishly spent buying it. Did you buy that battery online?