Ryobi Battery RB18L13 18V One+
(8 reviews)
Compatible with every tool in the Ryobi One+ range, this genuine RB18L13 battery offers a 4Ah capacity at 18V for constant, reliable power.
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Characteristics
- Capacity: 4 Ah / 72Wh
- Voltage: 18V (Lithium+)
- Compatibility: Ryobi One+ tool range
- Constant power, fast charging, genuine Ryobi
Detailed overview: Ryobi Battery RB18L13 18V One+
The RB18L13 is a genuine Ryobi battery, compatible with the entire One+ range of cordless tools: drills, drivers, saws, grinders, sanders and many more. Thanks to Lithium+ technology, it delivers constant power throughout the discharge, fast charging and an excellent lifespan. With a 4Ah capacity (72Wh) at 18V, it suits both occasional DIY and more intensive use. An on-board 4-LED fuel gauge lets you check the remaining charge at a glance, so you are never caught out in the middle of a job.
This battery is not just for tools: paired with the Ryobi 18V One+ 150W inverter, it becomes a self-contained 230 V socket holding 72 watt-hours, enough to run a laptop or a lamp far from any mains supply.
Frequently asked questions: Ryobi Battery RB18L13 18V One+
Yes, and that is the range's central selling point: Ryobi has not changed the One+ 18V mount since its launch, so a recent pack also powers a much older tool. Just check that your tool carries the One+ logo and not another of the brand's platforms.
Not necessarily. A pack left flat for several months drops below the threshold the protection electronics will accept, and the charger then refuses to start. That is sometimes recoverable with a brand charger, often not. To avoid it, store your packs at around half charge and top them up every six months: that is what makes the biggest difference to their lifespan.
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Published on 03/07/2026, updated on 30/07/2026