No. I tried looking myself with no results. However, there IS a Li-Ion Slim battery available on Ebay for like $16. Myself, and many other Batlabbers have bought these batteries with good results.
Current Fleet (Motorola):
XTS5000R UHF FPP MIII, Spectra UHF A7 head remote mount, Visar UHF, MTS2000 A4 UHF, SP50 UHF