Dongcheng lithium electric drill.
1. According to the query on Dianping.com, in terms of technology: Dongcheng lithium electric drill uses advanced lithium battery technology, with long battery life and fast charging function, while the lithium electric drill Dayi lithium is a traditional electric drill. low price power tool High and short lifespan.
2. In terms of functions: Dongcheng lithium electric drill has powerful torque and high-speed rotation, which is suitable for various working scenarios, while Dayi lithium electric drill has two adjustment levels, high and low, and the rotation speed can be adjusted according to the intensity of pressing. It is not as convenient and fast as Dongcheng lithium electric drill.
The difference between Dongcheng 20/65-2-5 and 18/65-3-5 lithium battery is that the number of cellses individual is different. The voltage difference is that the potential difference between 18 V and 20 V is 2 V, followed by the number of single cells. 18V is composed of 5 cells connected in series to obtain a battery pack of 18.5V. 20V is composed of 6 cells connected in series to obtain a battery of 22.2V (18650 cells each have a nominal voltage of 3, 7V). After voltage stabilization, the standard voltage 18V type 20V is obtained. Three 3.7V lithium batteries connected in series, maximum 11.1V and 12.6V lithium battery charging circuit solutions.