The comparison is simple. Look at the warranty, Bumblebee batteries come with a 3 year where as the hybridrevolt have a 1 year warranty. Also, I've seen Eli give a lot of advice on here that the competitors are just out to sell.I maintain a 2001 manual and a 2006 CVT Insight for family members and also keep a wrecked 2000 for spares. For the last three years, I've charged and swapped out sticks on the two older batteries to get one good one, but it's on its last legs. I use a 300 mA trickle grid charger which gets it charged, but it only is good for a day or so. Seems like the two choices for a new battery with the 8A cells are Bumblebee and HybridReVolt. The Bumblebee is $400. more than the HybridReVolt battery - is it worth it? Has anybody done a comparison?