Fully sealed SK series lead-acid maintenance-free battery（12V/4-200Ah）

Fully sealed structure, suitable for maintenance-free applications in various supporting equipment rooms and office spaces 

◆ Precise gas composite technology based on oxygen circulation mechanism, eliminating regular fluid replenishment maintenance； 

◆ Triple-sealed structure, strict air tightness inspection to prevent leakage and acid creep。 

Using modern valve-regulated lead-acid battery technology (VRLA), the performance is more stable and the consistency is better 

◆ Adopting the lean liquid structure of AGM (Superfine Glass Fiber Adsorption Technology), the electrolyte is adsorbed evenly, there is no excess free electrolyte inside, the air permeability is good, the chemical reaction is sufficient, the use efficiency of the electrode plate is higher, and the life is longer; 

◆ The high-quality safety valve design keeps the air pressure stable and prevents the effusion of acid mist. 

Use advanced production technology and raw materials to extend the normal service life of the battery 

◆ Adopt high-strength compression assembly process to increase battery assembly tightness and prevent active material from falling off； 

◆ Using high-purity raw materials and fine manufacturing technology, the battery's self-discharge electrode is small, and it can be stored continuously for more than half a year without charging at room temperature。

Application of unique manufacturing technology, especially suitable for UPS, inverter power supply and DC screen configuration of power system 

◆ Adopt advanced casting welding technology to prevent internal virtual welding and micro short circuit, so that the internal resistance of the battery is extremely low, and the high current discharge characteristics are good； 

◆ Adopt advanced casting welding technology to prevent internal virtual welding and micro short circuit, so that the internal resistance of the battery is extremely low, and the high current discharge characteristics are good

Environmental conditions:Use environment temperature:-30℃ ～ 45℃，Generally, it is appropriate to control the temperature between 10℃~30℃.

Use at a lower ambient temperature, the effective capacity of the battery will decrease; while using at a higher ambient temperature, the service life of the battery will be greatly reduced (Generally speaking, every 10°C increase in temperature, the battery life 30% reduction).

Note: The company may modify and change the above indicators at any time without notice.

◆    Storage environment temperature: -20°C to 40°C, generally controlled between 0°C and 40°C.

Design life

◆    Floating life:

SK series small batteries below 24Ah have a normal floating charge design life of 3 to 5 years (20°C to 25°C). SK series medium-sized batteries above 33Ah have a normal floating charge design life of 5 to 7 years (20°C to 25°C).

◆     Floating life:

SK series small batteries below 24AH have a normal floating charge design life of up to 3 to 5 years (20°C to 25°C). SK series medium-sized batteries above 33AH can have a normal floating charge design life of 5 to 7 years (20°C to 25°C).