Harbor Freight Tools


20V Max Lithium 4.0 Ah Battery

This high capacity EARTHQUAKE XT® lithium battery charges in just 85 minutes

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With 20V Max power you get more power, longer runtime and less downtime. EARTHQUAKE XT® 20V Max Lithium batteries charge in 85 minutes or less and can be used with a partial charge. The easy-view fuel gauge tells you exactly how much power remains before you need to recharge. This hardworking battery is designed to withstand impact and long times in storage.

  • Faster charging - get a full charge in 85 minutes or less
  • Easy-view fuel gauge
  • Impact resistant design prevents failure from drops or vibration
  • Temperature control prevents overheating for longer tool and battery life
  • Works with all EARTHQUAKE XT® 20V Max cordless tools

Important Information

  • This item can only be shipped within the 48 contiguous states via Standard Ground Shipping.

63535, 56596
Battery capacity
4.0 Ah
Battery type
Battery voltage (volts)
Charge time
85 minutes
Product Length
4-4/5 in.
Product Weight
1.40 lb.
Product Width
3 in.
Shipping Weight
1.65 lb.
Temperature range (deg F)
32° F to 113° F (0° C to 45° C)
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.