Yes, I have fromeco on board balancers pluged into both of my LiFe batteries. I was having problems with them puffing up when I was charging and balancing with my old charger. I replaced the batteries several differnt times because they kept puffing up. Now that I have these on board balancers on there, I can charge the batteries in the plane and they will balance themselves. Before I had to take them out of the plane to balance charge them. Now they can just stay in there. Ever since, I have not had them puff up on me.