Ryobi P108 18V ONE+ 4.0Ah High-Capacity Replacement Battery
- Ryobi P108 18V 4.0Ah Li-ion replacement battery for the ONE+ platform.
- Compatible with Ryobi 18V ONE+ lithium and NiCd tools and Ryobi 18V chargers.
- Uses a 5S2P 18650 battery configuration and is suitable for cordless drills and power tools.
- Retail-ready packaging and included compliance documents support distributor resale and international shipping.
This is a replacement battery for the Ryobi 18V ONE+ system. The P108 is a high-capacity 4.0Ah pack (5S2P, 18650) that works with all Ryobi 18V ONE+ lithium and NiCd tools. It also works with Ryobi 18V chargers. This is a Ryobi ONE+ battery replacement and 18V 4.0Ah P108 Li-ion replacement for cordless drills and power tools.
The P108 is made by Dongguan Ruineng New Energy (Nuranu), a high-tech custom battery factory since 2012. It is made on a fully automated assembly line where each battery is tested at the end of the line. It is designed for original equipment manufacturers (OEM), hardware distributors, and private-label brands that need the same fit and performance as OEM products at factory-direct prices.
Compatible Host Tools
- Ryobi 18V ONE+ drills, drivers & saws
- ONE+ lithium and ONE+ legacy tools
- P102 / P107 / P108 compatible platform
Target Applications
- 18V ONE+ Cordless Tools: The high-capacity 4.0Ah P108 sustains long runtime across the broad Ryobi 18V ONE+ tool range — from drills to high-demand saws.
- Backward-Compatible Fleets: The P108 runs the entire ONE+ lineup, including legacy tools — one high-capacity pack for the whole platform.
- Private-Label Distributors: Sourced with your branding and carton-ready packaging for the Ryobi 18V ONE+ platform.
Core Technical Advantages
1. High-Capacity 18V 4.0Ah
A 5S2P string of Grade-A 18650 cells delivers a genuine 4.0Ah — high runtime in the standard ONE+ form factor.
2. Full ONE+ Backward Compatibility
The P108 is compatible across the entire Ryobi 18V ONE+ system, including older ONE+ tools — a true universal ONE+ replacement.
3. Verified Charger Handshake
BMS handshakes correctly with genuine Ryobi 18V chargers; charging and protection behave identically to the OEM ONE+ pack.
Technical Specifications
| Feature | Specification |
|---|---|
| Replacement Model | P108 |
| Compatible Brand | Ryobi (Ryobi 18V ONE+) |
| Nominal Voltage | 18V |
| Rated Capacity (real) | 4.0Ah |
| Cell Type | 18650 · 2000mAh |
| Configuration | 5S2P |
| Shell Color | Green + Black |
| Proprietary Mold | No (standard form factor) |
| Net Weight | Confirmed at order |
| Battery Dimensions | Confirmed at order |
| Inner Box | Confirmed at order |
| Master Carton | Confirmed at order |
| Qty per Carton | Confirmed at order |
| Carton Net / Gross | Confirmed at order |
Packaging & Wholesale Logistics
The P108 is shipped in a box ready for retail, designed for distributors to resell and for shipping internationally. Every batch of products is shipped with UN38.3 transport test reports, IEC 62133 safety certificates, MSDSs, and CE Declaration of Conformity. This helps ensure that customs can easily clear the products in the EU, US, UK, AU, and JP markets.
| Item | Details |
|---|---|
| MOQ | 100 units (catalog) · 500 units (private label) |
| Lead Time | 25–35 days standard · 18–22 days expedited |
| Payment | 30% T/T deposit + 70% against B/L |
| Warranty | 12 months |
Product Video
Frequently Asked by Distributors:
Is this an 18V 4.0Ah P108 Li-ion replacement battery for Ryobi ONE+?
Yes, the P108 is a replacement battery. It is an 18V 4.0Ah Li-ion battery. It is for the Ryobi 18V ONE+ system. Instead of replacing the batteries in an old P108, it’s better to use a new pack with fresh Grade-A cells and BMS. This new pack is more reliable and works with all the other ONE+ models (P102, P104, and P107).
What is the MOQ for the P108 replacement battery?
The standard MOQ for the P108 is 100 units. You can get paid samples of 1–10 units to check the BMS-handshake before placing an order. Private-label or custom-spec runs start at 500 units.
Is the P108 drop-in compatible with original Ryobi chargers?
Yes. The P108 BMS is updated with special software so it works right with real Ryobi chargers. It charges, shows the fuel level, and locks out safety features like the original equipment manufacturer (OEM) pack. Handshake is validated on 100% of units at the end of the line.
Are these Ryobi replacement batteries any good?
Yes. Our P108 uses high-quality cells from leading brands like Samsung, LG, Panasonic, and BAK. These cells are matched in capacity and resistance, and their performance is validated by a battery management system (BMS) for 100% of units. It is made as a professional-grade Ryobi replacement battery, not a low-cost copy, and is backed by a 12-month warranty.
Will Ryobi or Home Depot replace my battery — and how is your P108 different?
Ryobi’s own warranty covers genuine packs if you get them from Home Depot or Ryobi service centers. We are an independent factory that supplies new P108 replacement packs. These packs are a direct, lower-cost alternative when a pack is out of warranty or you need a large supply. They have full UN38.3 / IEC 62133 / CE documentation.
Do you replace the cells in my old Ryobi battery?
We supply complete, ready-to-use P108 replacement packs — we don’t offer cell replacement or rebuild services. A new pack with fresh Grade-A cells and a fresh BMS is far more reliable than replacing the cells in an old Ryobi battery, and it comes with full safety documents.
How do I install the P108 replacement battery?
It installs just like a real Ryobi pack. First, slide it onto the tool or equipment until it latches. Then, charge it using any real Ryobi charger that works with that platform. You don’t need to change it or buy an adapter.
Which Ryobi tools is the P108 compatible with?
The P108 is a direct replacement for the Ryobi 18V ONE+ platform. It has the same latch geometry as the original and fits the corresponding Ryobi 18V ONE+ tools and equipment.
What cells and configuration does the P108 use?
The P108 uses high-quality 18650 cells (2000mAh each) arranged in a 5S2P configuration for a nominal 18V and a true rated capacity of 4.0Ah. Before assembly, cells are matched based on their capacity (±20 mAh) and internal resistance (±5 mΩ). You can specify your preferred cell brand (Samsung, LG, Panasonic, or BAK) when you place your order.
What is the warranty on the P108?
All P108 replacement packs come with a 12-month warranty against manufacturing defects. Every batch of products is shipped with the following documents:
– UN38.3 test report
– IEC 62133 certificate
– MSDS
– CE Declaration of Conformity
These documents are needed to clear customs worldwide.