Due to its outstanding performance, the Renogy 12V Deep Cycle AGM Battery is a favorite in a wide variety of applications. Maintenance-free and leak-proof, the battery is ideal for standby projects that require minimal monitoring. Thanks to its high discharge rate and wide operation temperature range, the battery can also handle cyclic uses, such as RVs, boats, medical equipment, and lawnmowers. With the finest materials, state-of-the-art production techniques, and the strictest quality control measures, Renogy AGM batteries aim to provide the most reliable, convenient, and economical rechargeable battery solution.Need a little more power? Connect several batteries in a series or parallel (up to 4) battery bank with Renogy Battery Interconnect Cables.NOTE:● To avoid cycle life shortening, it is recommended not to discharge the battery below 50%.● It is highly recommended to use a battery balancer to extend the battery service life when multiple batteries are connected in series and/or in parallel.● We highly recommend installing the battery upright. It is allowed to install the battery on its side only if there are special reasons for doing so. DO NOT install the battery upside down.● It is recommended to connect batteries with the same type (AGM), same voltage (V), and same capacity (Ah) from the same brand.