Difference between brushless and brushed lithium-ion drills
Release time: 2025-07-29
Brushless lithium drills are superior to brushed lithium drills in terms of performance, lifespan, and efficiency, but they are more expensive; brushed lithium drills are low-cost and easy to maintain, making them suitable for scenarios with limited budgets or light use.
Brushless cordless drills outperform brushed cordless drills in terms of performance, lifespan, and efficiency, but they are more expensive; brushed cordless drills are low-cost and easy to maintain, suitable for scenarios with limited budgets or light use.
Core Performance Comparison
Efficiency and Energy Consumption
Brushless motors reduce energy loss through electronic commutation, with efficiency 15%-20% higher than brushed motors, resulting in longer battery life and less heat generation. Brushed motors lose more than 30% of their energy due to carbon brush friction, leading to higher electricity costs in the long run.
Lifespan and Maintenance
Brushless motors have no carbon brush wear, and their lifespan can be 2-3 times that of brushed motors (brushed motors last about 5000-10000 hours), and there is no need to replace carbon brushes; brushed motors require regular maintenance, and although the cost of replacing carbon brushes is low, it is frequent.
Noise and Interference
Brushless motors operate at less than 70 decibels, and the electric sparks from brushed motors can interfere with electronic devices.
Applicable Scenario Analysis
Brushless cordless drills: Suitable for high-frequency, high-precision operations (such as professional woodworking, decoration), and scenarios requiring long battery life and stable output.
Brushed cordless drills: Suitable for scenarios with limited budgets, occasional home use (such as assembling furniture), where high starting torque is required but durability requirements are not high.
Other Considerations
Price difference: Brushless drills are typically 30%-50% more expensive, but long-term use can reduce maintenance and energy costs.
Repair difficulty: Brushless motors require professional repair in case of failure, while brushed motors can have their carbon brushes replaced independently.
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