I believe lithium iron phosphate tends to be around 120-150 Wh/kg, pretty decent regular lithium ion tends to be around 150, fairly recent Tesla battery packs a

I believe lithium iron phosphate tends to be around 120-150 Wh/kg, pretty decent regular lithium ion tends to be around 150, fairly recent Tesla battery packs are a bit over 200. (These are types of batteries that have been around for years that you can easily buy as a normal person for a reasonable cost. There's probably a lot of fancy/new battery technology that is somewhat better but either not mass-produced yet or otherwise prohibitively expensive, or trades off some other desirable quality like safety or durability to get more capacity.)