The other thing to look for is the design and how the charger gets its power. Watch out when comparing super-fast chargers, as the times stated might only apply to a specific size of battery with a specific capacity, not the 2,300mAh AAs you have in mind. ![]() ![]() As a result, they come with a higher price tag. This requires more technology to manage the voltage and ensure the batteries don’t overcharge or get too hot. Fast or rapid chargers work at much higher speeds, taking anywhere from four hours to under an hour to charge your batteries. Slower, cheaper chargers are usually labelled as overnight chargers, taking somewhere between six and nine hours to charge a set of AA batteries. The most significant thing that marks out one charger against another is its charging speed. Rechargeable lithium-ion batteries in these sizes are still a fairly new phenomenon, and usually need a specific charger or USB charging cable.īest microSD card 2023: Give your smartphone, tablet, camera or handheld games machine a storage boost How to choose the best battery charger for you What should you look for in a battery charger?Īll the battery chargers on test are designed to charge standard NiMH and older NiCad batteries in the most common AA, AAA and 9v formats. The best 9V battery charger | £15 | HiQuick 2-slot 9V Battery Charger.The best high-speed USB charger | £21 | HiQuick LCD Screen Battery Charger.The best value 8-slot charger| £18| EBL 8 Slots Fast Charger.The best cheap USB charger | £7 | AmazonBasics Overnight USB Charger. ![]()
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