This is an order from one of my customer.
This battery pack have built in over charge, over discharge and short circuit protection, 12.6V 1.5A charger provided. It is a 10.8V 27Whr battery pack, operated from 12.6V (when fully charged) down to 9V (when fully discharge), can be used for most 12V powered device that use less than 12W. It take aproximately 2-3 hours to fully charge the battery.