I've used Tallys End at Barlborough just off J30 2 Instavolt at Costa 2 Instavolt at McDonalds 1 Chargemaster at the Harvester Not sure of the speeds as I've never needed a full charge when heading back to East Riding so just normally stop for a loo break and a coffee
MK Coachway, Osprey at Lutterworth, Markham Vale, Barlborough are what I'd usually go for on that route. The motorway services you can try if you're stopping anyway (you often get lucky) but those are all just off the motorway with 2+ (many 4+) chargers.