R8400809 is a documented battery in the 18V Power Tools system. This page identifies its sourced specifications, exact-model restrictions and the next check before use.
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Verified model facts
| Field | Manufacturer-sourced value |
|---|---|
| Manufacturer | RIDGID |
| Exact model | R8400809 |
| Product type | battery |
| System | 18V Power Tools |
| Market | US |
| Voltage label | 18V |
- Retained to represent four explicit legacy incompatibilities. Capacity, cell chemistry, and launch date were not established in the reviewed source.
Amazon model search
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What compatibility data says
- battery to tool — R84082: incompatible. Explicitly starred in the manufacturer correlation supplement as incompatible with R8400809.
- battery to tool — R84083: incompatible. Explicitly starred in the manufacturer correlation supplement as incompatible with R8400809.
- battery to tool — R848: incompatible. Explicitly starred in the manufacturer correlation supplement as incompatible with R8400809.
- battery to tool — R860720: incompatible. Explicitly starred in the manufacturer correlation supplement as incompatible with R8400809.
Exceptions, source limits and safety
- Check the exact region, revision and current manufacturer instructions.
A missing rating is not zero or universal support. Charger AC input and pack-to-tool use are separate checks.
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Official sources
These source records were reviewed as of 2026-10-30; access methods differ. Open the latest manufacturer manual for your exact type, region and revision before use.
- RIDGID — Tool/appliance/battery pack/charger correlation supplement, revision 34The starred models R860720, R848, R84082 and R84083 are expressly incompatible with R8400809. The document contains a charger/battery correlation table and model-specific tool references. R86090 is not starred and is not included in the listed R8400809 exclusions. Date is the printed document revision, not a product launch date. This hist · pdf_text · Checked 2026-10-30
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