Had to get some 4ah battery. And I needed a jigsaw. Cheaper than the tool with a 1.5ah battery : r/ryobi
Ryobi 000998993DG9 OP4040 40V 4AH BATTERY Power Pack - Walmart.com
Ryobi RB18L40 18V One Lithium 4.0ah Battery for sale online | eBay
A Ryobi Battery Comparison | A Detailed Guide
Bought these off FB marketplace. Both are 40v 4aH batteries, but look different. One charger has a USB port? Left battery is 0P40401. Right battery is 0P40404. What's the difference? : r/ryobi
4AH Lithium Battery Confusion : r/ryobi
Battery 36V 4.0 Ah Ryobi BPL3640D2 Lithium + Max Power on sale at £ 219.9