Make sure the battery is compatible with your tool brand and battery system. Check the voltage (V), capacity (Ah), and whether it’s an original or third-party model. Most modern batteries are Li-ion.
Batteries
Ryobi RB1840X
The Ryobi RB1840X 18V 4.0 Ah delivers reliable power for demanding tasks. With longer lifespan and stable performance, it’s a great choice for both professional users and enthusiasts.
8.0
Capacity
6/10
Quality
9/10
Compatibility
9/10
Value for money
8/10
Total rating: 8.0/10
| Brand | Ryobi |
| Battery system | Ryobi 18V ONE+ |
| Product title | RB1840X |
| Voltage | 18V |
| Capacity | 4.0 Ah |
| Battery type | Li-ion |
| Weight | 700 g |
| Compatible chargers | 5 |
| Product page | Link |
Compatible chargers
Similar batteries
Compatible chargers
1. Ryobi RC18118C
18V, 1.8 A
750 SEK
The Ryobi RC18118C is an 18V 1.8A car charger that connects to a vehicle's 12V outlet. It allows charging of ONE+™ batteries during travel, providing flexibility for users needing to charge batteries without access to wall outlets.
7/10
2. Ryobi RC18120
18V, 2.0 A
500 – 600 SEK
The Ryobi RC18120 is a compact charger with a 2.0A charging current, compatible with all 18V ONE+™ batteries. It charges a 2.0Ah battery in about 1 hour and features a charging indicator displaying the battery's status during charging.
7.8/10
3. Ryobi RC18640
18V, 4.0 A
1,400 – 1,600 SEK
The Ryobi RC18640 is a multi-charger that can charge up to six 18V ONE+™ batteries sequentially. It is perfect for job sites where multiple batteries are used and need continuous charging.
8/10
4. Ryobi RC18240
18V, 4.0 A
1,000 SEK
The Ryobi RC18240 is a dual charger with a 4.0A charging current, allowing simultaneous charging of two 18V ONE+™ batteries. It speeds up workflow by reducing charging time and is ideal for users with multiple tools.
8.3/10
5. Ryobi RC18150
18V, 5.0 A
750 – 1,000 SEK
The Ryobi RC18150 is a fast charger with a 5.0A charging current, providing quick charging for 18V ONE+™ batteries. It is ideal for users who need to minimize charging time and maximize productivity.
8.5/10
Similar batteries
1. Ryobi RB1820C
18V, 2.0 Ah
650 – 700 SEK
The Ryobi RB1820C 18V 2.0 Ah is a small and lightweight battery, perfect for lighter tasks. With fast charging and compatibility within the ONE+ series, it’s a budget-friendly choice for shorter jobs.
7.5/10
2. Ryobi RB1825C
18V, 2.5 Ah
800 SEK
The Ryobi RB1825C 18V 2.5 Ah offers slightly longer runtime than the 2.0 Ah version without becoming bulky. Ideal for hobbyists needing more power for medium-length tasks.
7.8/10
3. Ryobi RB18L25
18V, 2.5 Ah
700 – 800 SEK
The Ryobi RB18L25 18V 2.5 Ah provides longer runtime and is a great balance between weight and performance. Ideal for both home users and professionals wanting more flexibility in their tools.
7.8/10
4. Ryobi RB1840T
18V, 4.0 Ah
1,400 – 1,500 SEK
The Ryobi RB1840T 18V 4.0 Ah is a high-performance battery offering longer runtime and fast charging. Perfect for users who want to work longer without changing batteries as often.
8/10
5. Ryobi RB18L50
18V, 5.0 Ah
1,100 – 1,300 SEK
The Ryobi RB18L50 18V 5.0 Ah provides maximum performance and long runtime. Perfect for professionals and advanced DIYers needing a battery that can handle longer and more demanding work sessions.
8.3/10
6. Ryobi RB1850X
18V, 5.0 Ah
1,300 – 1,400 SEK
The Ryobi RB1850X 18V 5.0 Ah is a high-capacity battery that delivers optimal power transfer and efficiency. With extended lifespan, it’s a great choice for users demanding consistent performance.
8.3/10
7. Ryobi RB1860X
18V, 6.0 Ah
1,600 – 1,700 SEK
The Ryobi RB1860X 18V 6.0 Ah is ideal for longer work sessions. With improved power and extended runtime, it’s a must-have for users who want to work without interruptions.
8.5/10
8. Ryobi RB1880T
18V, 8.0 Ah
2,000 SEK
The Ryobi RB1880T 18V 8.0 Ah is a powerful battery with long runtime. Perfect for professional users and advanced projects requiring maximum energy.
8.5/10
9. Ryobi RB18120T
18V, 12.0 Ah
2,500 SEK
The Ryobi RB18120T 18V 12.0 Ah is one of the most powerful batteries in the ONE+ series. It delivers extreme runtime and reliable power for the most demanding tasks. Perfect for professionals and advanced users needing long-lasting performance.
8.8/10
FAQ
A quality battery typically lasts 3–5 years with normal use, or up to 1,000 charge cycles. Lifespan depends on how often it’s charged, how it’s stored, and the temperatures it’s exposed to. Well-maintained batteries last longer and perform better over time.
Higher voltage (e.g., 18V or 40V) provides more power, while higher capacity (Ah) extends runtime. Heavy-duty tools require both higher voltage and capacity for best performance.
Charge batteries regularly and avoid full discharges. Store in a cool, dry place and clean the contacts as needed. Always use compatible chargers.
Yes, especially if you work for extended periods or use demanding tools. Extra batteries give you flexibility and reduce downtime. Higher-capacity batteries can also be more cost-effective over time.
