I use XT90's every single day. Wires are 12awg, maybe a random one is 10awg, I find 10awg about the limit for me to solder a XT90. Anything bigger conductor wire (lower gauge wire) and I would have to concentrate a bit harder and have a steadier hand and I would probably slightly melt a housing or two on the first 2 or 3 connectors that need to be replaced with 8awg. I'm only 35a.
I get home from a ride and I unplug the batteryies
I then plug them into the chargers
48v 15ah has one XT90 + 36v split (18v+18v in series) and that adapter just added another 3 XT90's into the mix for every day use in the adapter alone + the two XT90's for the split.
I then unplug the chargers at a lower voltage
The next day I plug the chargers back in to charge to full, then ride
Repeat, every single day
Count how many times they are unplugged and plugged in to use in a year and use 325 days instead of 365.
They last a long time, in the winter I abuse my XT90's by pulling on the cable sometimes (very bad I know)
They last for about a couple years or 3 before one breaks off and needs to be replaced which I did a couple weeks ago. My solder jobs aren't crappy crappy, but they are not great either
If it was possible to crimp XT90's (You cant) they would last way more then 3 yrs for me.
I do not know much about Anderson PP's 45 variants, I did buy them, I did try to solder (dont have a crimper) and it did not work. The problem I see is that they are to small, so being to small means they could be more weak when I use them to last. For me they are just to small, you have to be a little more careful with them plugging and unplugging them.
I would vote for soldered XT90's, can you get them?
Hobbyking is to expensive now with shipping.
Local rc shops are like 5x the price.
Grin has XT60 Amass, I wish they would have XT90's.
I dont trust the usual places (amzn/eby/ali's)