This is a Solar AGM SLA Battery Replacement for the Permobil X850 Corpus. It is a high quality Set of 2 x 12V 75AH Deep Cycle SLA Batteries which uses AGM technology. It can be used for both cycle and standby applications. The sealed, valve regulated design allows for superior performance in any orientation, even in harsh conditions, without any leaking or maintenance. You will receive Brand New and Factory Fresh AGM SLA Battery with 1 Year Warranty.