Lithium batteries - including these LiFePO4 types - do need special treatment. A nice feature of those packs from the UK is that they are not just batteries:
Integrated Electronic ‘Battery Management System’ (BMS) provides the following protection:
- Overcharge & over-discharge protection
- Thermal protection
- Over current protection
- Short circuit protection
Originally Posted by padlin
Do they have the same 50% drain limits?
No, it seems generally agreed that these lithium batteries can be safely discharged repeatedly down to a few percent of their capacity - that's about half of their advantage over lead-acid (the other half being that they are less dense so the same volume of battery weighs much less).
I agree that the cost/benefit situation doesn't yet favour lithium for most RV purposes.