1. To what voltage can it be squandered so that it does not collapse?
2. How long will it withstand charge / discharge cycles?
3. How long will it last? They say that 12V is almost a deep discharge. That is, if the battery is discharged to 0.7V, can not it be used? But how much capacity is this? Those same 60Ah?
4. How to use BMS for such a battery?