Humen Port Builds 1500 Mu High-tech Industrial Park

Yesterday, the “Industrial Planning and Revision of Lisha Island Fine Chemical Industry Park in Dongguan Humen Port” was reviewed by experts. The plan divides Lishadao Chemical Park into basic material areas and functional high-tech industrial clusters of fine chemicals. Among

Rechargeable battery knowledge highlights

First, let's introduce a few simple basic electrical formulas, and hope that readers without an electronic background can have a few concepts about several physical phenomena.

Voltage (V) = Current (I) x Resistance (R)

Charge quantity (Q) = current (I) x time (T)

Power (

Testing, use and maintenance of UPS batteries

UPS batteries occupy a very important position in UPS power equipment. At present, the maintenance-free sealed lead-acid batteries widely used in small and medium-sized UPS power supplies account for 1/4 to 1/2 of the total cost of UPS power. Not only that, but