I have a used Horizon 5200 split LiHV external battery i am going to sell and donate the proceeds to dirtybum. its been charged about 10 times, well cared for .. i even snuggled it once after a sweet flight. I was getting about 29min with this on a stock p3p hooked up to a modded battery. $50 plus shipping. Here's the same battery at Horizon's site for $84
