Check the listing for details. Bescor NMH-120-RST-AG 12V Nickel Metal Hydride Battery. Condition: Used. Listed at 139.99 USD. NMH batteries are rated to give 500 to 1,000 cycles in normal usage. These batteries can be stored either discharged or charged. If stored fully charged they will self discharge over time. However, storing the batteries in a cool, dry place (refrigerator) will slow down the self discharge process. It is best to use these batteries at least once every 6 months., otherwise the internal organic materials inside the battery will dry out and the battery’s performance will deteriorate. Bescor’s automatic chargers, models NMH-ATM and NMH-ATMX are recommended for maximum battery life. All brand new battery packs require 3 to 5 charge/discharge cycles to achieve the rated run times. This is a Restock item that has had its box opened or has been repackaged. It may have minor cosmetic flaws and may have been sold to a customer and returned. Please contact your Sales Pro for more information on this and other products.