RYOBI 18-Volt ONE+ Lithium-Ion 4.0 Ah High Capacity Battery (2-Pack)
We are not ready to call this price.
We check at least every 12 hours and hold a day-by-day record of what this cost — 3 days of it so far. Calling a price high or low needs 7 of those days and at least one change, because a range needs two prices: this one has not moved since we started watching. If it is still $112.00 on October 18, this box will say so — a price that has held for 10 days is an answer too.
Two 4.0 Ah batteries, 8 Ah in all: $14.00 per amp-hour at today’s $112.00. Every platform, per amp-hour
Tell me when it drops
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Price history
Tracking since October 8, 2026 · 3 of 7 days to a verdict
The price has not changed since we started watching, so there is no line to draw yet. A chart appears the first time it moves.
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
Where to buy
- Held for
- 2d
- Checked
- 8h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
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What it is
4 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Weight
- 2.2 pounds
- Dimensions
- 7.44 × 6.1 × 3.74 inches
- Model
- 2 X RB18L40
- Warranty
- 30 days limited warranty
Cheaper in Tool batteries, and what changes
Things we track on the same shelf for at least 10% less than $112.00, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
RYOBIONE+ 18V Lithium-Ion 4.0 Ah Rechargeable Battery, ABS Plastic, Up to 3X Runtime vs 1.5Ah, LED Fuel Gauge, Black, PBP005$70.00 at Amazon $42.00 lessWeight: 1.59 pounds instead of 2.2 poundsDimensions: 6.3 × 4.96 × 4.61 inches instead of 7.44 × 6.1 × 3.74 inches
RYOBIP193 6.0 Amp Hour 18V Lithium Ion Battery w/ Onboard Fuel Gauge$88.20 at Amazon $23.80 lessDimensions: 7.09 × 6.46 × 3.62 inches instead of 7.44 × 6.1 × 3.74 inchesWarranty: 30 Day Limited Warranty instead of 30 days limited warranty
RYOBIONE+ 18V High Performance Lithium-Ion 2.0 Ah Compact Battery (2-Pack)$69.99 at Amazon $42.01 lessWeight: 1.87 pounds instead of 2.2 poundsDimensions: 5.5 × 3.3 × 3 inches instead of 7.44 × 6.1 × 3.74 inches
Others we track in Tool batteries
See all Tool batteries prices
RYOBIONEAND 18V 8.0 AH Lithium-ION HIGH Performance Battery$120.15 · low $104.971 retailer · 4 recorded prices
DEWALT20V MAX 5 Ah Lithium-Ion Battery and Charger Starter Kit (DCB205C)$106.99 · low $106.971 retailer · 3 recorded prices
DEWALT20V MAX* XR Battery, 4.0-Ah, 2-Pack (DCB204-2), Black$106.561 retailer · 1 recorded price
DEWALT12V MAX* Batteries, 3.0-Ah, 2-Pack (DCB124-2)$118.44 · low $118.391 retailer · 4 recorded prices- RYOBIP193 6.0 Amp Hour 18V Lithium Ion Battery w/ Onboard Fuel Gauge$88.201 retailer · 1 recorded price
DEWALT20V MAX XR POWERPACK 8.0 Ah Power Tool Battery (DCB2108)$127.331 retailer · 2 recorded prices
$112.00
at Amazon · we earn a commission