Black and Decker Rechargeable Mower

I've owned this mower for a little over two years now and it has far exceeded my expectations.  Not having to bother with hauling gas and oil.  No tuneups. Several of my neighbors have commented on how quiet this mower is compared to their gas mowers.
The runners on St. Augustine lawns in Florida are more like cutting rope and this mower plowed right through my 1/4 acre yard with charge to spare. Extremely quiet compared to a gas mower and of course non-polluting.  Can do a quick charge in about two to three hours, but I usually just leave it plugged in when not in use.  I really love the single handle height adjustment which is much faster than messing with each wheel individually. The only thing I would like to see Black and Decker add is a self propelled model for the times you have to mow uphill.  Maybe they could put in a 36 volt battery or something like the Remington that lets you plug in and gives you an extra power boost. So far my two year old battery still shows full capacity. I checked with a Black and Decker repair center and they said a new battery costs about $100 and they should last for 5 years or so. So the way I figure $20 dollars a year isn't very much to spend compared to tuneups, plugs, gas and oil changes.