The ME-XP expansion pack gives you 3X the storage capacity of the battery inside the main Lion Safari ME solar generator when its connected to the ME (Safari ME is required).
Charge Retention: Up to 2 Years
Min Charge Time with Main Unit: 4.5 hours
Cycle Life: 3,500+
Dimensions: 16.7" x 9.6" x 9.8"
Weight: 44.5 lbs