ROFL, you don't trust them because you can purchase them for a cheap price. Perhaps they actually mass produce these cells. The company is currenty in contract w/ chevy, saturn, dewalt. Do I really need to go on? These cells are very safe and a have a lifespan of around 1500 cycles. You can purchase them for a lot off their website. Or you can purchase dewalt 36 volt battery packs which contain 10 cells for under $100 shipped off of ebay. Not to mention you can lay them out over a chasis how every you wan to. You can wire them up side by side or make them in to a saddle pack. I have seen a lot of 4wd mod guys running these cells in a 2s 2p configuration because they are a durable saddle pack. They normally get 15 minutes of run time w/ a gtb 4.5 or 6.5. Their low voltage cut off is around 2 volts per cell so you will actually know when you need to pull them off the track. Their discharge is more linear then lipos too. They have 3.6 volts for like 15 seconds, 3.3 volts for like 6 minutes and then they hit 4 volts in like 15 seconds.