The Best Batteries (AA, AAA, Coin & 9V)
The top-rated batteries on Amazon UK right now: Amazon Basics 20-Pack AA Alkaline High-Performance Batteries (best overall), Duracell CR2032 Lithium Coin Batteries 3V (runner-up), DURACELL Plus AAA Batteries (best value). All are ranked by genuine customer ratings and review volume, with live Amazon prices.
Batteries are the ultimate rebuy, and the good news is that the value gap is huge. For everyday, frequently-changed devices, own-brand alkalines like Amazon Basics deliver performance close to the big names at a fraction of the price per cell. Save the premium Duracell and Energizer cells for standby kit like smoke alarms and emergency torches, where the longer guaranteed shelf life genuinely matters. For coin cells (CR2032) and 9V, buy on price per unit, and switch to rechargeables only for high-drain gadgets you power daily.
How often this category is on offer: we record Amazon's price once a day. Of the 45 products here with at least two weeks of checks since 4 Sept, 7 showed a discount of 10% or more at every check, 14 never did, and 24 dipped in and out. Discounts here come and go, so waiting for one is realistic if you are not in a hurry. How we count this
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Top Household Batteries, Chargers & Accessori products
46 products 
Frequently asked questions
Are Amazon Basics batteries as good as Duracell?
For everyday devices, effectively yes. Independent drain tests show own-brand alkalines like Amazon Basics run close to Duracell and Energizer at a much lower cost per cell. The main advantage of premium brands is a longer guaranteed shelf life, which suits batteries you store for years, like those in smoke alarms.
Should I buy rechargeable or single-use batteries?
Rechargeables (NiMH) pay off for high-drain gadgets you use daily, such as game controllers, flashes and wireless mice. For low-drain devices like remotes, clocks and smoke alarms, single-use alkalines are cheaper and last for years without self-discharging, so they remain the sensible choice there.
What batteries do smoke alarms need?
Most take a 9V or AA battery, and a few use a sealed 10-year lithium cell. For replaceable ones, a premium long-shelf-life brand is worth it here specifically, because you want reliability from a battery that sits unused for a long time before it is ever needed.