Should I completely discharge a deep-cycle battery the first few times I use it? No. A marine/RV deep-cycle battery does not require a complete discharge at any time in its service life. For best results, we recommend a shallow or moderate discharge the first 5 to 20 cycles.
The Washington Monument is open daily: 1  Regular Hours: 9:00 a.m. to 5:00 p.m. Last tour begins by 4:00 p.m. 2  Summer Hours: (Memorial Day to Labor Day) 9:00 a.m. to 10:00 p.m. Last tour begins by 9:00 p.m.
Museum Hours . Daily 10 AM to 5 PM Closed Thanksgiving and Christmas Day. Hours subject to change. Museum Guide. To prepare for a visit to the Museum, download or print a copy of our guide. (PDF)