How many cells in series does your battery have? I'm guessing it's a 20s pack, and if so, you're right to be hesitant, because that charger is set way too high. Lithium chargers will commonly measure at the cutoff voltage when no battery load is present. 97V is a very conservative cutoff for a 24s pack and slightly high for a 23s pack. 97V is kind of an odd cutoff number, are you sure it's not a lead acid battery charger for a 7x12V pack (which would be an 84V pack. If the pack is LiFePo4, then the numbers are different. I'm referring to lithium cells with a 4.2V max per cell fresh off the charger, and a 24s pack.
Aluminum cased chargers are typically quite easy to tune the cutoff voltage using a tiny flathead screwdriver and adjusting the trimpot (adjustable resistor) closest to the charge output wire. Taking the cover off is usually just take off the top 2 screws on each endplate and pop the top off, so a 5 minute job to get the cutoff voltage you want. I adjust every charger I get, because I like to charge to only 4.10V or 4.15V per cell cutoff voltage.
Even after tuning personally oversee the first time you use it to make sure it cuts off at the voltage you want. Just to be safe in the event of a charger failure, I always use a timer on the AC supply to my charger as an extra safety precaution. I'm very familiar with my packs and charge times, so I can estimate charge times pretty well.