HD03 is a documented battery in the HERCULES 12V 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 | HERCULES |
| Exact model | HD03 |
| Retailer SKU | 57367 |
| Product type | battery |
| System | HERCULES 12V |
| Market | US |
| Voltage label | 12V |
| Capacity | 2Ah |
| Chemistry | lithium-ion |
- Exact Harbor Freight SKU 57367; printed/catalog model field: HD03.
- Both 12V 2Ah and 4Ah listings display HD03; SKU is retained to avoid a false merge.
- The manufacturer lists 2Ah capacity for this exact pack.
Amazon model search
Search Amazon listings for the exact printed model. A search result can include other sellers, variants or unrelated items; check the manufacturer model, battery system, safety notices and seller listing before ordering.
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Search HERCULES HD03 57367 battery pack on AmazonWhat compatibility data says
The exact model is documented, but no direct pair statement is loaded. A platform rule may provide a conditional lead; absent evidence stays unknown.
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.
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.
- Harbor Freight — HERCULES SKU 57367SKU 57367; official model field HD03; 12V battery. Capacity 2Ah. This battery page explicitly states compatibility with all tools in its matching brand and voltage platform. · full_page · Checked 2026-10-30