Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery vs Hercules 20V Lithium-Ion 2.5 Ah Compact Battery
Both are Hercules 20V packs that fit the same tools, so the choice is runtime versus weight and price. The 5.0 Ah pack doubles capacity and runs high-demand tools longer, but it weighs 1.5 lb and costs $74.99 at eBay as of October 31, 2026. The 2.5 Ah pack is lighter and quicker to top up, with a 60-minute charge time and a 3-year warranty. Buy the 5.0 Ah for saws, grinders and long jobs; buy the 2.5 Ah for drills, drivers and overhead work.
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Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery
Choose the Hercules 5.0 Ah if you run circular saws, grinders or other high-draw tools and want the longest runtime per charge.
Pros
- Double the capacity of the 2.5 Ah pack
- Longer runtime in saws and grinders
- Fuel gauge and overload protection
- Impact-resistant housing
Cons
- 1.5 lb adds weight to hand-held tools
- No listed charge time or warranty
- Costs $74.99 at eBay as of October 31, 2026
- One buyer reported a 'New' pack already 2 years old by manufacture date
What separates them
| Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery | Hercules 20V Lithium-Ion 2.5 Ah Compact Battery | |
|---|---|---|
| Capacity | 5.0 Ah | 2.5 Ah |
| Runtime per charge | About twice the runtime of the 2.5 Ah in the same tool | Half the runtime of the 5.0 Ah |
| Weight | 1.5 lb | Lighter compact pack (weight not listed) |
| Charge time | Not listed | 60 minutes |
| Warranty | Not listed | 3 years |
| Fuel gauge | Easy-view indicator | Easy-view LED indicator |
| Protection | Temperature and overload protection | Thermal control |
| Tool compatibility |
Price history
$79.99$74.99
- Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery: lowest $74.99 on Oct 31 at Harbor Freight Tools; $74.99 on Nov 2.
- Hercules 20V Lithium-Ion 2.5 Ah Compact Battery: lowest $79.99 on Nov 2 at The Detail Culture.
Prices at every store
Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery
- AmazonCheck price at Amazon
- eBayCheck price at eBay
- BuildsupplyCheck price at Buildsupply
Hercules 20V Lithium-Ion 2.5 Ah Compact Battery
- The Detail CultureCheck price at The Detail Culture
- BuildsupplyCheck price at Buildsupply
Specs compared
| Spec | Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery | Hercules 20V Lithium-Ion 2.5 Ah Compact Battery |
|---|---|---|
| Battery Capacity | 5 Ah | 2.5 Ah |
| Voltage | 20 V | — |
| Item Weight | 1.5lbs. | — |
| Item Length | 4.45in. | — |
| Item Width | 3in. | — |
| Battery voltage | — | 20V |
| Capacity | — | 2.5 Ah |
| Charge time | — | 60 minutes |
| Fuel gauge | — | Easy-view fuel gauge displays battery charge le… |
| Cell type | — | lithium-ion battery cells |
What reviewers say
Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery
Buyer feedback on this listing centers on the seller rather than the battery itself: shipping, packaging and communication are all rated well. One buyer complained that a pack sold as new was already two years old by its manufacture date.
Pros
- Items arrived as described and well packaged
- Fast shipping and quick handling
- Good pricing compared with elsewhere
- Responsive seller communication
Cons
- One pack sold as new was two years old by manufacture date
Questions and answers
- Which pack lasts longer per charge?
- The 5.0 Ah pack. It holds twice the charge, so expect roughly double the runtime in the same tool.
- Which is better for a drill or impact driver?
- The 2.5 Ah. A drill rarely drains a pack in one session, and the lighter pack is easier on your wrist.
- Is the 5.0 Ah worth the extra weight?
- Yes for saws, grinders and long jobs where runtime matters more than 1.5 lb in your hand. No for quick drilling and driving.
- Do both fit the same tools?
- Yes. Both work with all Hercules 20V cordless tools and use the same charger.
- How long does the 2.5 Ah take to charge?
- 60 minutes, per the listed spec. The 5.0 Ah charge time is not listed.
- What warranty do they carry?
- The 2.5 Ah lists a 3-year warranty. The 5.0 Ah listing does not state one.
More comparisons
- Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery vs Hercules 20V Li-Ion 5.0Ah 2-Pack Battery Bundle HC01-2P
- Hercules 20V Lithium-Ion 2.5 Ah Compact Battery vs Hercules 20V Li-Ion 5.0Ah 2-Pack Battery Bundle HC01-2P
- Hercules 20V Lithium-Ion 5.0 Ah Extended Performance Battery vs Hercules 20V 12Ah Battery
- Hercules 20V Lithium-Ion 2.5 Ah Compact Battery vs Hercules 20V 12Ah Battery
