“If you need to charge fast having 2 of these will reduce charge time in 1/2. I can be full charge in 2-3 hrs which is really fast for the number of miles you get on a Burn-E 2. However, I can say I have only had to use BOTH chargers a couple times so in general I use 1 charger because I'm not in a hurry to charge it because of how many miles I get on a charge. It really depends on how much you travel and whether you need a second charger vs the one that comes with it. I do like having the ability to plug in two chargers though when needed.”