ONE+ 18V Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit (PSK006)
Quick take
This RYOBI ONE+ 18V battery and charger kit includes two 4.0 Ah lithium-ion batteries plus a compatible charger, aiming to reduce downtime by letting you swap batteries while working. It also features an integrated LED fuel gauge and is designed to recharge using any RYOBI 18V ONE+ charger. If you already own ONE+ batteries, the main tradeoff is that you may only need a single battery instead of a two-pack.
Pros and cons
Pros
- Two 4.0 Ah batteries plus a charger, helping you keep projects moving.
- LED fuel gauge helps you monitor remaining runtime at a glance.
- Works across the RYOBI ONE+ 18V battery ecosystem (batteries can recharge on ONE+ chargers).
- Built for day-to-day durability, including robust construction and impact protection.
Cons
- Higher total cost than buying just one battery, so it may not be ideal if you only need a top-up.
- Capacity (4.0 Ah) may not match shoppers who specifically need longer runtime batteries for high-drain tools.
- Compatibility is limited to RYOBI ONE+ 18V systems, so it will not fit other cordless lineups.
What buyers think
Buyer-review evidence strongly points to two themes: convenience and value. Many users mention that pairing two extra batteries with a charger makes tool sessions smoother, since they can switch batteries rather than waiting as often. Reviews also commonly describe the batteries as delivering reliable runtime for common homeowner tasks and working smoothly in ONE+ tools. A smaller but consistent theme is authenticity and quality, with some buyers specifically noting they received branded batteries rather than generic alternatives. There is limited evidence about any long-term durability issues, and one or two mentions focus mainly on the kit feeling pricey compared with cheaper third-party options.
Who this kit is best for
- Ryobi ONE+ owners who want a practical way to expand their battery lineup without waiting for recharges.
- Weekend projects and yard work, where having a second battery reduces interruptions.
- Shoppers who like capacity that feels “enough” for many tools, without jumping straight to higher-capacity packs.
Battery and charger highlights
Two 4.0 Ah batteries for less downtime
With two lithium-ion packs included, the kit is built around the idea that you should not have to pause work just because a battery runs low. That makes it particularly useful for tool setups where you already have one battery and want a backup ready to go.
LED fuel gauge for quick runtime awareness
An integrated LED fuel gauge is intended to help you gauge remaining runtime quickly, so you can plan breaks and avoid unexpected cutoffs.
Designed for ONE+ 18V compatibility
The charger and batteries are meant for the RYOBI ONE+ 18V system. You can also recharge these batteries on any RYOBI 18V ONE+ charger, which helps if you already own other chargers for different kits.
Fade-free power and weather resilience
The kit is described as delivering fade-free power in extreme weather conditions, and the battery chemistry is positioned as resistant to drainage when idle. That combination is relevant if you store batteries between projects and want them to be ready when you return.
Pros and cons in plain English
Pros you can feel during use
- Swapping batteries is fast, since the packs use quick-release style buttons to detach and snap into compatible tools.
- More runtime per session comes from having two batteries in the kit, even if your tools also support swapping with other packs.
- Better visibility through the LED fuel gauge can help you time tasks around battery level.
Tradeoffs to consider before you buy
- Not the lowest-cost route: if your budget is tight or you only need one additional battery, a single-pack option may be a better fit.
- 4.0 Ah is a middle-capacity choice: if you frequently use high-drain tools for long stretches, you may want to compare higher-capacity battery options within the ONE+ family.
- System lock-in: this kit only makes sense if you already own compatible RYOBI ONE+ 18V tools or plan to build around that platform.
How it compares to alternative options
- Compared with a one-battery purchase: this two-pack kit is usually the better match if you regularly pause work for charging. If you rarely run a battery down, you may not need two.
- Compared with higher-capacity batteries: the 4.0 Ah capacity can be a practical balance for home use, but shoppers prioritizing maximum runtime per charge may prefer larger Ah packs.
- Compared with third-party or non-matching ecosystems: the value of staying within the ONE+ ecosystem is straightforward compatibility and charging simplicity across ONE+ chargers.
Price and availability
The kit is offered at a listed price of $139.25 in the US market, and it is currently shown as in stock. If you are checking at another moment, use the live button below to confirm the latest cost.
Verdict
The ONE+ 18V 4.0 Ah battery and charger kit is a strong pick for Ryobi ONE+ owners who want a second battery ready to go, with an LED fuel gauge for quick checks and the convenience of recharging across the ONE+ charger ecosystem. Choose it when you want less downtime during DIY and yard projects, and consider a different capacity or a single-battery option if you only need minimal top-up or use high-drain tools for long sessions.
FAQ
Is this battery kit compatible with Ryobi ONE+ 18V tools?
Yes. The batteries and charger are designed for the RYOBI ONE+ 18V lithium-ion platform, so they should work with compatible Ryobi ONE+ 18V tools.
What does the LED fuel gauge do?
The integrated LED fuel gauge is meant to show remaining runtime at a glance, so you can plan when to swap batteries.
Does this charger work only with this kit’s batteries?
The kit is built for the ONE+ 18V system, and these batteries can be recharged on any RYOBI 18V ONE+ charger. That means the charger is useful beyond this exact kit if you already own other ONE+ chargers.
Is the 4.0 Ah capacity good enough for most home tasks?
For many common homeowner uses, 4.0 Ah is often a practical middle ground. If you run high-drain tools for extended periods, you may want to compare higher-capacity battery options to maximize runtime per charge.
Should I buy a two-pack or just one battery?
A two-pack is a better choice when you want less downtime and prefer having a backup battery during longer sessions. If you only need a small top-up or rarely run a battery down, a single battery may be more cost-effective.
Specifications
| Product Title | ONE+ 18V Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit, 1 (PSK006) |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery & Charger Sets |
| Brand | RYOBI |
| Manufacturer | generic1 |
| Model Name | psk006 |
| Model Number | PSK006 |
| Item Weight | 4.65 Pounds |
| Number of Batteries | 2 Lithium Ion batteries required. |
| UPC | 033287197309 |
| Antenna Location | Ryobi |
| Battery Capacity | 4 Amp Hours |
| Voltage | 18 Volts |
| Reusability | Rechargeable |
| Amperage | 4 Amps |
| Compatible Phone Models | Tools |
| Unit Count | 1.0 Count |
| Battery Weight | 400 Grams |
| Item Dimensions | 12.17 x 9.41 x 4.41 inches |
| Battery Cell Type | Lithium Ion |
| Battery Cell Composition | Lithium Ion |
| Recommended Uses For Product | Ryobi |
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