The most common broadcast and camera batteries are the V-port battery and the settlement port battery. The V-port is the interface introduced by SONY in 1993 when the lithium-ion battery was launched, so the SONY cameras are all V-ports. The Anchor Port is also called A port. It is an earlier battery interface than the V port. It is the battery interface of the Anton Company specializing in the production of camera batteries in the United States. Panasonic's cameras are all A-port. The battery interfaces of other camera manufacturers are equipped with V or A ports according to the user's choice. The V-port battery and the A-port battery are lithium-ion batteries, so the interior is composed of an 18650 battery pack plus a circuit board. The quality and safety of the V-port battery, the internal circuit board includes the output protection board of the battery area, the temperature control element and the temperature-sensing element of the battery terminal, the overall circuit is simple and clear, and the inferior V-port battery often has internal circuits that are staggered, and there is a large potential for short circuit. Low cost and simple structure. After a long period of time, there are greater hidden dangers. It is recommended that you choose large-brand manufacturers as much as possible when purchasing batteries to ensure safe use.
| "Direction battery" V-port battery | "Orientation Battery" Ankou Battery |
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| "Direction battery" old battery internal structure | "Direction battery" new battery internal structure |
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