A pair of BB10012 (or maybe a bit larger, footprint permitting) are probably going to replace my 2 FLA Napa factory installs, when they degrade (and they're probably on their way) and need replaced.
The BB LiFePO4 units have a built in BMS that prevents all the horror story stuff you read about online, like charging below 32F, over/under charging, and whatever else negative they come up with. As far as I can tell, they're idiot proof.
I've been in touch via email with BB Technical Support, and they're very good on following up with you and your questions.
They are pricey (obvious), but I will probably break even over time, and they have so many pluses over FLA/AGM/Gel batteries, that I'm going to ignore the price when the time comes, and just do it.
Check with Solacity in Kemptville, ON for any other questions. They're also quite good with support/questions via email. I believe they're also the only retailer for BB in Ontario. There isn't a major dealer network for these things in Canada, yet.