PRODUCT DESCRIPTION High Capacity Ampsentrix Plus Replacement Battery For iPhone 8 Plus (Premium). Ampsentrix Plus batteries are same size batteries with more capacity. This is possible due to newer core technologies. Compared with other battery this Ampsentrix Plus battery charge faster, last longer and have a higher power density for more battery life in a lighter package. Our New batteries not only passes industry standards, but we are also certified by official standards.. All iPhone Batteries comes with Zero – Cycle count, OEM TI Gas Gauge Chip, and Pre-installed Battery Adhesive.. Large Capacity Super Durable 3400 mAh Battery compared to 2691 mAh. It’s Specially design Replacement Battery for iPhone 8 Plus.