Bsioff 18V 4.0Ah replacement battery for Ryobi ONE+
Product description
This pair of replacement batteries brings extended runtime to common 18V cordless tools, keeping jobs moving when you need continuous power. The two-pack of high-capacity 4.0Ah lithium-ion units suits drills, impact drivers, saws and outdoor equipment and helps reduce interruptions during projects by allowing one battery to charge while the other is in use.
Key Points

These batteries work with the Ryobi ONE+ 18V ecosystem and aim to match the fit and performance expectations of original packs. They include an LED fuel gauge so you can see remaining charge at a glance, which is handy on busy job sites and when working outdoors. 🔋


Built-in safety controls protect against overcharge, over-discharge, overheating and short circuits, offering a more stable output according to the manufacturer. The rugged ABS housing increases resistance to knocks and abrasion, which helps on rougher tasks. ⚡

A two-hour approximate recharge time is quoted with compatible 18V chargers, so downtime between shifts is reduced and swapping capacity is straightforward. Note that charging speed depends on the charger model and conditions.
Technical Specifications



- Name: Bsioff 2-Pack 4.0Ah 18V Lithium-ion Batteries
- Capacity: 4.0 Ah
- Voltage: 18 V
- Pack: 2 batteries included
- Charge time: 2 hours (with compatible Ryobi 18V chargers)
- Compatibility: compatible with Ryobi ONE+ 18V tools including models like P102, P108, P189, P197 and PBP005
- Protection: overcharge, over-discharge, overheat and short-circuit prevention
Usage Recommendations

Keep one battery charging while operating tools to maintain continuous work time. For best results use with chargers listed as compatible by the tool manufacturer and avoid exposing the battery pack to extreme temperatures during storage. When performing heavy load tasks such as prolonged sawing or extended drilling, plan for periodic battery swaps to maintain consistent power and prevent excessive heat build-up. 🛠️
Consider that, as with most aftermarket batteries, performance can vary depending on the tool and the age of the battery. Manufacturers recommend following safety advice for lithium batteries and monitoring the LED fuel indicator before starting a job.
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