RE: I will never use Lipoly batteries again
First, I'm really sorry for your friend's loss and will be more careful with all my lipos. Thanks for posting this as it helps all of us avoid this situation.
I believe the other issue was to not use a balancer. Balancer are not optional with Lipos. If one cell is bad, the charger will overcharge the good cells, and this might lead to a fire.
I plan to replace all my lipos with A123. What is the best brand / charger out there?
Arnaud