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Buy Varta CR2430 Lithium Coin Battery 3V for £0.65 at Amazon.co.uk.
Buy Duracell Rechargeable AAA 900 mAh Batteries, Pack of 4 for £4.97 at Amazon
Buy Varta CR2032 Lithium Button Batteries, Pack of 10 for £3.66 at Amazon.
Duracell Recharge Batteries are now available on Amazon at a fair price.