---
title: "HERCULES 20V 4 Ah Lithium-Ion Battery (#71305) — Price History & Coupons | Price Caliper"
description: "HERCULES 20V 4 Ah Lithium-Ion Battery (Harbor Freight #71305): Current price $72.99 (regular $72.99, all-time low $72.99). Compares to MILWAUKEE 48-11-1840 ($139.00). View full daily price history, active Super Coupons, and 28/90 real-sale verification."
image: "https://www.harborfreight.com/media/catalog/product/cache/3d22b64dd135f1249009afe013614425/7/1/71305_W3.jpg"
---

[**Live Event :**
Early Black Friday Deals — 66 Official Event Deals · Ends Wed, Nov 25 — Browse Black Friday Deals →](/promo/black-friday)

[HERCULES](/brands/hercules)

Item #71305

# HERCULES 20V 4 Ah Lithium-Ion Battery

Current Price
$72.99
Everyday list price

All-Time Low
$72.99

Observed Nov 13, 2026

Deal Status

Regular Price
No active discount today

[View on Harbor Freight](https://www.harborfreight.com/20v-4-ah-lithium-ion-battery-71305.html)

28-Day Baseline: Day 2/28

Compare to [MILWAUKEE](/compare/milwaukee) **48-11-1840** at $139.00 (save $66.01 / 47%)

Last checked Nov 14, 2026 06:41 UTC

Steady Everyday Price

Holding steady at its $72.99 everyday price with no lower sale spans recorded yet.
Eligible for storewide 15%–20% Off Single Item or Under-$20 weekend promotions.

## Price History

[30 days](/item/71305?range=30d#chart-h)
[90 days](/item/71305?range=90d#chart-h)
[180 days](/item/71305?range=180d#chart-h)
[1 year](/item/71305?range=1y#chart-h)
[All](/item/71305?range=all#chart-h)

**Public Price**

**ITC Member Deal**

Most Common Price (90d)

Most Common Price
$72.99
Most common price over last 90 days

All-Time Low

$72.99

Nov 13, 2026

All-Time High
$72.99
Standard list price

Price Spans Recorded
1
Since Nov 13, 2026

View Quick Price & Benchmark Summary Table (Item #71305)

| Benchmark / Specification | Verified Value |
| --- | --- |
| **Harbor Freight Item Number** | #71305 |
| **House Brand** | [HERCULES](/brands/hercules) |
| **Department** | [Power Tools](/categories/power-tools) |
| **Current Effective Price (Public)** | $72.99 |
| **Regular List Price** | $72.99 |
| **All-Time Low Price** | $72.99 (observed Nov 13, 2026) |
| **90-Day Most Common Price** | $72.99 |
| **28-of-90 Real-Sale Verification** | Baseline Day 2/28 |
| **Compares To Name-Brand Tool** | [MILWAUKEE](/compare/milwaukee) **48-11-1840** ( $139.00 list — save $66.01 / 47% ) |

## Price Span History Log

Click any multi-day span to view day-by-day log

| Date Span | Days | Public Price | ITC Member | Regular Price | Promotion |
| --- | --- | --- | --- | --- | --- |
| Nov 13, 2026 – Nov 14, 2026 | 2d | $72.99 | — | $72.99 | Regular Price |

## Price & Coupon Q&A — Item #71305

### What is the lowest price on the HERCULES 20V 4 Ah Lithium-Ion Battery (#71305) at Harbor Freight?

The lowest tracked price for the HERCULES 20V 4 Ah Lithium-Ion Battery (Harbor Freight item #71305) is $72.99 (recorded on Nov 13, 2026). Its standard regular price is $72.99, its most common 90-day price is $72.99, and its all-time high is $72.99 across 1 recorded price span since Nov 13, 2026.

### Is there an active Harbor Freight coupon or Inside Track Club (ITC) deal for item #71305?

There is no active item-specific Super Coupon or Inside Track Club discount for item #71305 today; it is currently selling at its $72.99 regular price. You can set a free instant email price drop alert or view the interactive daily price history step-chart at https://pricecaliper.com/item/71305.

### Is $72.99 a good price for Harbor Freight item #71305?

Steady Everyday Price: Holding steady at its $72.99 everyday price with no lower sale spans recorded yet. Eligible for storewide 15%–20% Off Single Item or Under-$20 weekend promotions. Harbor Freight compares item #71305 to the MILWAUKEE 48-11-1840 ($139.00), making the current $72.99 price $66.01 less than the competing model.

### What name-brand tool does Harbor Freight item #71305 (HERCULES 20V 4 Ah Lithium-Ion Battery) compare to?

Harbor Freight compares the HERCULES 20V 4 Ah Lithium-Ion Battery (item #71305, current price $72.99) to the MILWAUKEE 48-11-1840 ($139.00 list price), saving $66.01 (47%) off the MILWAUKEE price. Browse all Harbor Freight vs. MILWAUKEE tool comparisons at https://pricecaliper.com/compare/milwaukee.

## More HERCULES Tools & Deals

[Browse all HERCULES →](/brands/hercules)

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