• Capacity: Using high-quality lithium batteries, the real capacity is 3000 mah, 50% more operating time than original 2.0 Ah WA3525 battery
• Package: 2 Packs 3.0 Ah Replacement batteries for 20 Volt Batteries and noise-cancelling earplug, replace for all 20V batteries WA3520 WA3525 WA3575, not compatible with 18v cordless tools
• Safety: Using an intelligent protection system and high quality battery cells with the same performance to prevent short circuits, overcharging, discharging, and high temperature protection of the battery, obtaining relevant electronic certification, and passing the 1.5 m drop test
• Size: Same size as the original, from professional power tool battery manufacturing factory. Perfect for 20v tools and 20V battery charger, easy to install
• After Service: 7-24 hour after-sales service, and no reason money back within 1 month. Please send amazon message, if there are any issues during use and we will reply within five hours.