Charging Base for BISSELL CrossWave X7 Cordless Pet Pro Multi-Surface Wet Dry Vac, series 3011, 3055, 3276, 3277, 3279. Follow these instructions to charge your BISSELL CrossWave X7 Cordless Pet Pro Multi-Surface Wet Dry Vac: Plug the charging cord into the bottom of the Charging Base. Then, plug the adapter into a suitable wall outlet. Place your machine onto the dock to charge. The Battery Lift Indicator will illuminate when charging. For maximum run time, charge the machine for 4 hours. For After Cleaning Care with the Charging Base, follow these instructions: Place the machine on the Charging Base. Make sure the solution in the clean water tank reaches the Clean Out Cycle line. If it does not, fill tank with water to that line. Note: for best results, run the Clean Out Cycle no more than two times after each cleaning session. Empty the dirty water tank prior to starting the Clean Out Cycle. Push the Clean Out Cycle Button to start the 40-second cycle. Empty the dirty water tank. Charging Base CrossWave X7 1631828