CSBattery OPzS 2V  Tubular GEL deep cycle batteries are recognized as the most reliable and high quality battery system in the industry. They are designed with advanced patented GEL technology, Long service life designed with 20-25 years, 80% DOD over 2000 cycle Cycles, the batteries comply to the most popular international standards, such as IEC60896-21/22, BS6290-4, Eurobat Guide. 
OPzS Tubular Deep Cycle Flooded Batteries 2V500Ah, 1000Ah, 1500Ah 2000Ah most popular models Advanced Features:
Environmentally friendly         Completely Maintenance-Free        Non-Spillable construction design.  
Wide Operating Temperature Range(-20°C~+60°C)         Longer Life(20years designed life)          Explosion Proof 
Valve Regulated & High Discharge Rate Capability         Low Self Discharge         Independent of Position
Ease of Shipment         No need of balanced charge or boost         No Memory 
Chinese Best Quality OPzS Tubular Deep Cycle Solar Flooded Battery Applications:
Communication equipment Telecommunication control equipment Emergency lighting systems   Electricpower systems Power station
Nuclear power station Solar powered and wind powered systems  Load leveling and storage equipment   Marine equipment  Power generation plants
Alarm systems Uninterruptible power supplies and stand-by power for computers Medical equipment  Fire and security systems Control equipment
Stand-by electric power.