500w portable and camping lithium battery

What is a dry battery (disposable battery)?
The dry battery and liquid battery are only limited to the primary battery and the early development of the voltaic battery. At that time, the liquid battery consisted of a glass container filled with electrolyte, in which the electrochemical active electrode was immersed. Only later, the battery with completely different structure was introduced, which can be placed in any position without spillage, which is very similar to the existing primary battery. Early batteries were based on paste electrolyte. At that time, it was dry battery. In this sense, today's primary battery is also a dry battery.

What is liquid battery?
In principle, liquid battery is applicable to some secondary batteries. For large solid lead acid or solar cells, this liquid sulphosulfonic acid electrolyte is more commonly used. For mobile equipment, it is recommended to use lead-acid batteries that do not spill and are maintenance free, and have been used for many years. Sulfuric acid is fixed by gel or a special small glass pad.

In short, portable battery belongs to a category of mobile power supply, which refers to portable power supply with small size and convenience. Portable batteries are usually characterized by large capacity, multi-purpose, small size, long service life, safety and reliability. At present, the products using portable batteries in the market include mobile phones, digital cameras, MP3, MP4, PDA, handheld computers, handheld game consoles and other digital products and smart wearable products.