48v 15amp split pack

My 11yr old ping 48v15amp split pack is on its last leg. Anyone no where I can get a decent spilt pack for my saddle bags.
Pings quality has gone downhill thru the years an Id prefer a battery built in the states.
48v15amp split or 48v10amp split .
thanks
Chris
double post, I apologize ,could not delete

http://em3ev.com they're in china but run by an englishman, they built split packs. i have and old one tha'ts two modules of a123 pouch cells, it's still going though it doens't get used a lot these days.

Nice to see you after all these years. Thank you for your advice. You are truly a ebike legend.
I'm going to check then out.