[Remaining battery indicator LED] The batteries built with 4-LED Fuel Gauge System allows immediate feedback on state of charge. Fast charge with original 82V battery charger
【Safety and Reliable】The lithium battery Replacement for built in protection against potential damage caused by overcharging, overheating and short-circuit protection.The battery replacement approved certified.
[What You Get, Customer Service]: 2 packs batteries, Manual. 30-day money back and 12-month limited warranty. CONTACT US: Please contact through "Your Orders" tab in Amazon account (allow 24hrs for reply), we will give you the most satisfactory solution.