So I visited Cigara at Hammersmith couple days ago aaaaaaaaand... they sold me fake batteries.
First pair was Sony VTC5, checked the serials later and boom same on both. That's a 100% sign of fake. Went back in and was handed two Samsung 25Rs. They have a scored bursting disc under positive contact, real ones have a dimple only. So yeah, fakes again.,
DO NOT BUY BATTERIES FROM THIS STORE.
You will get fakes and possibly get injured when, not if, those go pop. Already contacted Citizens Advice about this.