Recharge Mower LI-10BATT 18-Volt Lithium Ion Battery For GTLI-10 & HTLI-10 Battery power is consistent throughout the full cycle. There is no memory, so you can recharge the battery at any time during its cycle. Lightweight, 18-Volt battery is easy to remove and install; conveniently extend your cutting time to allow for continuous use. Extremely Light Weight. Recharge up to three times as often as traditional batteries.