I have an 1100W 44A 24V PSU. Should I get a Powerlab6 or an iCharger 306b and why is the one you picked better than the other choice in your opinion?

ive been debating between thse two chargers for my next upgrade since ill be running multi carpet classes this winter. i been thinking of trying the junsi this time.
im currently running two chargers a cellpro 4s and an xtrema.

i really do like the safety features of the fma products but there is one thing that annoys me about the fma i have. cold temperature error. once in a while i will race at an outdoor track near here and late in the evenings ive been left empty handed as the charger goes into emergency charge mode due to cool temperatures. i see on page 80 of the pl6 manual has an error code for temperature out of range.

If you need 40 amps then choice is clear.