1st of all a good lipo is not dangerous. I suggest a smc 5000 or an orion. As far ar their benefit they have great rip if u get the right c rateing and mah. They also stay constant so with a bl system u have 0 power loss for a heat or 2 also u really only need 1 or 2 of them per car. Ive had mine for a year and it runs as good as new just balence it every so often. I love lipo and bl systems their is no maitnence