I've been using FMA Direct products since the year they were first hitting the market, and Ace R/C products well before that. The owner of FMA Direct is Fred Marks, and his history in the development of our hobby is something to hold in awe. In the linked article he provides a lot of information useful to anyone serious about battery powered radio controlled flight.
You just spent up to $250,000 on Drone Sensors-And saved $10 on a battery pack? - sUAS News - The Business of Drones
Fred Marks The Impact of the ASTM Standard on Batteries and BMS on Drone Programs The beginning for drones in the form we know today goes back to WW II as the DennyRadioplane. Batteries have always been the heart of the system. As a point of reference, the UK and US converted manned aircraft to […]