Makita XGT 4Ah Batteries - 2 Pack (BK04-X2) - Super Vac Ventilation Fans
Makita 40V Max 4.0Ah Brushless Cordless Blower Kit - UB001GM101
Makita BL4050F - 40V max XGT 5.0 Ah Li-Ion Battery - Federated Tool Supply
Makita UR003GM101 40V Max 4.0Ah Li-ion XGT Cordless Brushless Loop Handle Line Trimmer Brushcutter Kit
Makita 191K01-6 XGT 40Vmax 2 x 4.0Ah Batteries & Charger Kit
Makita USA - Product Details -GAD01M1
XGT 5.0AH vs 4.0AH - size comparison : r/Makita
Makita USA - Product Details -BL4040
Makita BL4025 40v Max XGT 2.5Ah Li-Ion Battery 191B36-3
Makita BL4040 40V Max XGT 4.0 Ah Lithium Ion Battery (2 Pack) : Tools & Home Improvement
Makita GT200D-BL4040 40V Max XGT Brushless Cordless 2-Pc. Combo Kit 2.5Ah with bonus 40V Max XGT 4.0Ah Battery
Not sure how well-known this is, but it looks like XGT is coming to (more) stores : r/Makita