Even more power for the outdoors with the 760 expansion battery. Under normal conditions, the battery of the Anker 760 expansion battery remains in excellent condition for 3,000 charge cycles. This corresponds to 10 years of regular use. Ultra-long durability and maximum safety. The perfect extension for the Powerhouse 767, 2300 W, 4096 Wh, 2000 W output for nearly all devices.