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18650 Rechargeable Batteries

Buy reliable and long-lasting 18650 rechargeable batteries from OnBuy that can be powered up hundreds of times and still keep demanding devices running. Shop our 18650 rechargeable battery range and get free UK delivery on many packs and chargers, along with low prices from OnBuy's verified sellers!

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Looking to buy 18650 Rechargeable Batteries?

Fed up with batteries that seem to run out quicker every time you charge them, or spending a fortune on single-use ones? Shop reliable, durable, and long-lasting 18650 rechargeable batteries for your demanding devices now with OnBuy.

Find affordable prices within our 18650 rechargeable battery range and get a single battery, duo packs, four packs, and more. You can also buy packs with chargers, or get household battery chargers on their own to ensure you can always top up.

What is a 18650 battery?

An 18650 battery could easily be mistaken for more common AA batteries that you find in lots of everyday items, like remote controls and other small electronic devices, but they're quite different. Visually, they're slightly larger (the 18650 name comes from its 18x65mm measurements) so they won't fit into AA battery slots, but also they deliver charge differently.

The 18650 battery is designed to support devices that have a high power consumption, like laptops, electronics, and even some electric cars. To do that, they have to be reliable, have a long run time, and be capable of being recharged hundreds of times without suffering a loss in capacity or charge delivery.

How to charge a 18650 battery?

Charging 18650 rechargeable batteries is simple - all you need is a compatible battery charger. Ensure a 18650 battery will fit in the charger before you buy, but then you just need to pop it into the charger and plug in. If you're going to be using the charger regularly, it would be worth looking for features like overcharge, over-current, over-voltage prevention to stop the battery from getting damaged over it's working lifetime.

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