That crap will break. These chargers require the a regulator to control current. Batteries will pull 12.5 continuous since there’s not regulator in between and it will burn up fast.
You can say you have used a similar one without issues, but how much have you been ridding the past couple years? I went through 3 before I gave up and just bought the proper meanwell for $200 that has adjustable current and can actually do 12 amp con without burning up.
Was using them for 2 years prior no prob. Actually use it still often to charge lipo to run motors on bench and prior to that used it like crazy charging 3 or 4 times a day maybe a quarter of last year. If ur worried they can’t do their rated current u can simply add the resistor. Or get the way more expensive meanwell one you got. Actually I linked a meanwell. Or I read one for leds is better at putting out their continuous max amps. There are a lot of folks who use them no prob