Cateye Cr1620 Battery Tweet Pricing £3.49 In Stock (Warehouse) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Description Philips: CR1620 Lithium Battery 3v (x1) As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.