Battery For Ryobi 36V 40V 4.0Ah BPL3640D2 RLM36BL BPL3650D BPL3620D BPL3626D2 OZ | eBay
Amazon.com: RYOBI RY36B40B Lithium + Battery 36 V - 4.0 Ah : Tools & Home Improvement
I'm using my 40v 4ah Ryobi battery to supply a 36v Mower. The mower starts and then stops right away. The connections and voltage works well. When I use 40v 2ah WORX
Ryobi 36V 4.0Ah Battery and Charger Kit - Bunnings Australia