• Package: 2 Packs 5.0Ah Replacement battery for Worx 20 Volt Batteries and noise-cancelling earplug, Replacement for all worx batteries 20V WA3520 WA3525 WA3575, not compatible with 18v cordless tools
• Capacity: Using high-quality lithium batteries, the real capacity is 5000mah, more operating time than 2.0ah WA3525 battery
• Size: Same size as the original, from Professional power tool battery manufacturing factory, Compatible with worx 20v tools and worx 20V Battery Charger ,easy to installation
• 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 1.5m drop test
• 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.