The Renogy 12-Volt Deep Cycle Hybrid GEL Battery is ideal for both standby and cyclic applications in extreme environments. Maintenance-free and leak-proof, it can reliably supply emergency power to security systems and emergency lighting systems, helping prevent any damage that may be caused by a sudden loss of primary electricity. It is also suitable for RVs and boats, where repeated charges and discharges are highly required, given its long service life and outstanding cycle capacity. Moreover, with its high power-to-weight ratio, it can provide maximum storage for any solar or wind system. With the finest materials, state-of-the-art production techniques and the strictest quality control procedures, Renogy Hybrid GEL batteries aim to provide the most reliable and economic rechargeable battery solution. Included with your purchase is a Heavy-duty Battery Box to limit battery movement, prevent accidental spills and protect from external elements. This heavy-duty box uses high impact-resistant polypropylene for reliable protection while tackling rugged environments. On the top of the battery box are vent holes to allow for adequate ventilation. The battery box includes a tie-down strap and brackets for easy installation in a car, boat, camper, motorhome, trailer or caravan. Should you need to connect several batteries in series/parallel to build a battery bank, Renogy offers the Battery Interconnect Cables (not included) in different lengths for your convenience.