RYOBI ONE+ 18V Lithium-Ion 1.5 Ah Battery
The RYOBI P189 is a compact 18V ONE+ lithium-ion battery rated at 1.5 Ah and 27 Wh. RYOBI says to use it with ONE+ 18V cordless products only. It has an onboard LED fuel gauge, fade-free power, and anti-vibration durability.
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Will This Battery Work in Your Tool?
RYOBI’s P189 manual says to use the pack with RYOBI ONE+ 18V cordless products only. Run this quick check before you buy.
This pack is not made for RYOBI 40V or USB Lithium tools, or for other brands’ 18V systems. The P189 and the PBP002 are separate RYOBI models. The PBP002 has an LED fuel gauge, which makes the model number on the label worth checking.
RYOBI P189 Specifications
| Property | Detail |
|---|---|
| Brand / model | RYOBI P189 (18V ONE+ 1.5 Ah Compact Lithium Battery) |
| Platform | RYOBI 18V ONE+ |
| Chemistry | Lithium-ion, rechargeable |
| Rated voltage | 18 V |
| Rated capacity | 1.5 Ah (1,500 mAh) |
| Nominal energy | 27 Wh |
| Intended use | RYOBI ONE+ 18V cordless products only |
| Battery protection | Built-in protection features (RYOBI gives no threshold values) |
| Cold-weather operation | Down to 0°C (32°F), starting with a light-duty task |
| Charging temperature (P118B charger instructions) | 10°C to 38°C (50°F to 100°F) |
| Hot or cold pack | Charging waits until the pack reaches an acceptable temperature |
| Full drain before recharge | Not needed |
| Charge time (PCG002 charger) | As little as 45 minutes for a 1.5 Ah battery, per RYOBI |
| Long-term storage | Over 30 days: below 27°C (80°F), dry, 30% to 50% charge, charge normally every 6 months |
| Internal cells | Not user-replaceable. RYOBI says not to disassemble the pack. |
| Warranty | 3-year limited warranty advertised for 18V ONE+ batteries. Proof of purchase and eligibility rules apply. |
| Dimensions and weight | Not confirmed. RYOBI documents do not state them and retail listings conflict. |
Capacity and runtime depend on the tool, the load and the temperature. Charge time depends on the charger. Values come from RYOBI manuals and product pages, plus a Techtronic Industries Australia safety data sheet for the 27 Wh rating.
RYOBI P189 Battery Replacement Difficulty
Swapping the complete pack is an easy, tool-free job. It uses the external latches and does not involve opening the battery. The harder parts are picking the right model and having a compatible charger. Tap a slice to highlight it.
- 20% Releasing the latches
- 20% Fitting the new pack
- 35% Choosing a compatible battery & charger
- 25% Charging & checking the pack
The difficulty score and effort split are an editorial estimate based on RYOBI’s published latch-release procedure for tools such as the P215 drill/driver, not an official rating. Replacing the cells inside the pack is not rated here, because RYOBI says not to do it.
How to Replace the Battery Pack in Your Tool
Charge the new pack first. Then tap each step to tick it off as you go.
- 1Stop the tool and lock the triggerRelease the trigger, let the tool stop, then lock the switch trigger as your tool manual describes.
- 2Remove the old battery packPress the latches on both sides of the pack and pull it out of the tool.
- 3Insert the new battery packSlide the charged pack into the tool until the latches snap into place.
- 4Check the pack is secureMake sure the latches on both sides have snapped in before you use the tool.
Release the trigger to reset the tool and try again. If it still does not run, recharge the pack. A hot or cold pack may need time to reach a normal temperature before it charges. The trigger lock position varies from tool to tool, so follow your tool manual.
Devices That Use This Battery
The P189 works with products in the RYOBI 18V ONE+ system. These examples come from kit listings and RYOBI product pages. Confirm your exact model in its manual first.
- Drill/driversP215 kits include the P189
- Impact driversP1817 combo kit includes two P189 packs
- Handheld sprayersPSP01 kit includes the P189
- Chemical sprayersONE+ models rated for a 1.5 Ah pack
- Grass shrubbersKit with a P189 battery
- Bluetooth stereosP746-P189 bundle, now discontinued
- Digital inflatorsONE+ range, check the model
- Fans and lightsONE+ range, check the model
Safety, Storage & Disposal
RYOBI tells users not to disassemble the battery pack to replace the internal cells. Replace the complete pack instead. Do not use a pack that is damaged or modified.
- Keep the pack dry, clean and free from oil and grease.
- Do not charge it in damp or wet places.
- For storage over 30 days, keep it below 27°C (80°F) at a 30% to 50% charge.
- Cover the terminals with heavy-duty tape and ask your local waste authority about recycling.
RYOBI P189 Battery: FAQ
What is the RYOBI P189 battery used for?
The P189 is an 18V, 1.5 Ah lithium-ion battery for RYOBI ONE+ 18V cordless products. RYOBI’s manual says to use it with ONE+ 18V products only.
Is the RYOBI P189 the same as the PBP002?
No. Both are RYOBI 18V ONE+ 1.5 Ah lithium-ion batteries, but RYOBI lists them as separate models. The PBP002 has an LED fuel gauge, and those features should not be assumed for the P189.
How long does the P189 take to charge?
It depends on the charger and the battery temperature. RYOBI says its PCG002 charger can charge a 1.5 Ah battery in as little as 45 minutes.
Do I need to fully drain the battery before recharging?
No. The P189 manual says the battery does not need to be completely discharged before you recharge it.
Can I replace the cells inside the P189?
RYOBI tells users not to disassemble the pack to replace the internal batteries. Replace the complete battery pack instead.
How should I store a P189 for a long time?
For storage over 30 days, keep it below 80°F (about 27°C), away from moisture, at a 30% to 50% charge. Charge it normally every six months.
