Powerful chargers are plenty nowadays. MuchMore Legend that charge up to 16 amps, the LRp will only charge up to 12. Orion came out just recently with a 20 amp charger, but then again - I guess it really depends on your lipos if they can handle the high charging rates. Some manufacturers encourage up to 3C but will shorten lifespan of battery. I only charge up to 10 amps max on my 50C SMC batts and they seem to hold pretty well.