Model on Pack: CEF20UK
Barcode: 5 000394 079809
Item was on shelf next to the other batteries! It was marked for £0.99 too.
1 x charger which can charge 2 x AA or 2 x AAA
2 x AA Duracell Rechargeable Batteries included - 1700mAh
Found at Ruislip Sainsbury's
Looks like this deal could be uk wide! could not see it online