nosram (lrp)lipos 7.4 2s2p 5000mah 25c

[lind5]

hi guys i run these nosram 25c 7.4 2s2p 5000mah lipos
do any of you rate these lipos
i have been told that nosram and lrp are the same company
(not sure if this true)

i run 2 at the same time at 14.8 v
i have balanced them every time and they seem to hold up ok
but if anyone has some more info on these that would be great

i was looking to upgrade soon to have a bit more power
ive been looking at the zippy-r lipos

im gonna run the mambamonster in my bl lst my motor is the 1515/1.5 2700 kv there seems to be so many opinions on this forum to what you should run and what you shouldnt
i would like to be getting about 50mph + would this be possible

should i stay 4s or go bigger would my motor allow me to go bigger

if your kv is lower you can un more voltage
if kv is higher keep voltage lower is this right or have i got it all wrong

i have cooked 2 esc's (quark monster pro/mtroniks truck genisis)
running my motor and above lipos not sure if im just unlucky or my set up is all wrong ....these were both in my g3revo conversion (51 spur 18 pinion)

sorry about the amount of question but i need to get it right this time
cheers guys