No, completely different battery. The 3R uses a common camera battery, but the plus uses a proprietary battery that's got half the case bonded to it.
1978 13BT-40, 70 series mechanicals
1966 FJ45 lwb stock
2003 100 stock
1974V8J40, 1992FJ80, 1985FJ60, 1971FJ55, 1978FJ40, 1974FJ40, 1997 LX450 all long gone.