Power Source WP Series Batteries feature a completely sealed and maintenance free design. Factory pre-charged and deep cycle capable of up to 800 cycles for a typical user. Travel and shipping is made easy by being approved by the FAA, CAB, IATA, DOT, air transport and UPS. Power Source mobility batteries are also Medicare approved according to SADMERC. The appropriate HCPCS to use when billing both gel cell and absorbed glass mat batteries are: E2365 U-1 sealed lead acid, E2361 22NF sealed lead acid, E2363 group 24 sealed lead acid. Special separators, advanced deep cycle plate composition, and a carefully balanced electrolyte system have greatly improved the capability of recovering from deep discharge, up to 800 cycles. Power Source batteries may be used in series and/or parallel to provide a choice between voltage and capacity. The same battery may be used in either cyclic or standby applications without sacrificing life or performance. High-impact resistant ABS non-conductive plastic, styrene, or polypropylene make up the durable case and provides excellent resistance to vibrations, shock, chemicals, and temperature. Discharge currents of over ten times the rated capacity of the battery are a result of low internal resistance specifically found in Power Source batteries. Smaller batteries may even be specific in applications requiring high peak currents. Power Source batteries may be discharged over a temperature range of -15 degree Celsius to 50 degree Celsius.