"Power AGM Dual Purpose Batteries absorbed glass mat (AGM) sealed, maintenance-free batteries feature a number of design elements to provide optimum performance. Robust plates extend the life cycle of Power AGM Dual Purpose Batteries. A separator of glass fibers serves to isolate the positive and negative plates while acting as a pad to absorb the electrolyte. The separator is maintained under compression between plates to assure contact with plate surfaces. A computer-generated grid design is optimized for high-power density. Low calcium grid alloy reduces gas emissions and a flame arresting, one-way pressure relief vent prevents buildup of excessive pressure. Power AGM Dual Purpose Batteries are low temperature tolerant, shock and vibration resistant and have a low internal resistance for higher discharge current and higher charging efficiency. Designed with advanced battery technology, Power AGM Dual Purpose Batteries deliver dependable power with long battery life. Features * Maintenance Free * Absorbent Glass Matt (AGM) technology for efficient gas recombination of up to 99% and free from electrolyte maintence or water adding * Not restricted for air transport companies with IATA/ICAO special provisions A67 * UL reconised componet * Can be mounted in any orientation * Computer designed grid for high power density * long service life, float or cyclic applications * Water Proof and Still Proof."