The Painswick Stream and Ruscombe Brook join the channel below the junction and flow through the Dudbridge locks, after which the water is discharged into the River Frome below the A419 Dudbridge Road bridge.

This is in contrast, for example, to lithium ion batteries, which are less stable and will be permanently damaged if discharged below a minimum voltage.

Lead-acid batteries should never be discharged to below 20% of their full capacity, because internal resistance will cause heat and damage when they are recharged.

The complaint accuses the city of allowing almost two million gallons of untreated runoff to be discharged into groundwaters below the dump every day.

Each narrow boat travelling through the series of locks (22 of them each 6 ft (1.8 m) deep) with a 25-ton load of coal caused 85 tons of water to be discharged into the brook below the locks.

No lead acid battery should be discharged below 50% of its capacity, as it shortens the battery's life.

The water powers the turbines and is discharged into the river below the waterfalls.

Cooled spent shale is discharged through a water seal with drag conveyor below the retort.

However, if Li-ION cells are discharged below a certain voltage a chemical reaction occurs that make them dangerous if recharged, which is why probably all such batteries in consumer goods now have an "electronic fuse" that permanently disables them if the voltage falls below a set level.