Batteries

Ryobi RB4L30

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Ryobi RB4L30 4V USB 3.0 Ah
The Ryobi RB4L30 4V USB3.0 Ah is a compact and portable battery providing stable power to small tools and USB-charged devices. Ideal for users needing a flexible, convenient, and reliable power source.

7.8

Capacity
5/10
Quality
9/10
Compatibility
9/10
Value for money
8/10
Total rating: 7.8/10
BrandRyobi
Battery systemRyobi 4V USB Lithium
Product titleRB4L30
Voltage4V
Capacity3.0 Ah
Battery typeLi-ion
Weight60 g
Compatible chargers1
Product pageLink
Compatible chargers
Similar batteries
Compatible chargers
Ryobi RC43P 3-port USB Lithium Fast Charger
1. Ryobi RC43P

4V, 2.0 A

500 SEK
The Ryobi RC43P is a 3-port USB charger with a 2A charging current. It sequentially charges three USB Lithium™ 4V batteries and features indicator lights displaying charging status. Ideal for users with multiple USB Lithium™ tools.
7.5/10
Ryobi RB420 4V USB 2.0 Ah
1. Ryobi RB420

4V, 2.0 Ah

250 SEK
The Ryobi RB420 4V USB 2.0 Ah is a lightweight and compact battery for smaller tools and devices. With fast charging and a compact size, it’s a great choice for portable use and shorter work sessions.
7.5/10

FAQ

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.
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.