My Yaesu HT needed a new battery and I bought one from Batteries America. They advertise in the QST magazine. Their ad in the magazine shows your HT rig and the battery required. Contact info is: www.batteriesamerica.com
or 800-308-4805 or email firstname.lastname@example.org
I was pleased with their service, delivery, price, and knowledge of the products they sell.
Hope this helps.
1991 FJ80 converted to an HDT with an A442, Safari intercooler, 3" exhaust, factory Toyota subtank, 3" lift, 285's, Warn 9500xi, rear drawer system, 42qt Engel fridge.