Photovoltaic energy storage device

The utility model discloses a photovoltaic energy storage device, which belongs to the field of photovoltaic power generation and comprises a box body, supporting legs are arranged in the box body, a placing plate is arranged on the supporting legs, a plurality of groups of storage batteries are arranged on the placing plate and are connected in parallel, a partition plate and the placing plate are provided with ventilation holes, a support is arranged at the top end of the box body, and a ceiling is arranged on the support. A water tank is arranged on the outer wall of the box body; a heat absorption water pipe is arranged in the box body; two ends of the heat absorption water pipe are communicated with the side wall of the water tank; a water pump is arranged on the heat absorption water pipe; the box body is beneficial to protecting the storage battery, the storage battery is prevented from being affected by direct sunlight, rainwater and the like, the safety of the storage battery is improved, the aging o