Severely Discharged Batteries: Notes
Risk of injury. Follow all warning messages and safety precautions. Refer to WARNINGS AND SAFETY PRECAUTIONS .
A Battery -A- is designated as "severely discharged" if the resting voltage is less than 11.6 V.
Do not check or charge a Battery -A- when the visual indicator has >>no color or is bright yellow<<. Jump starting must not be used!
There is a risk of explosion during testing, charging or jump starting.
These Batteries -A- must be replaced.
- Severely discharged Batteries -A- freeze earlier.
- Batteries -A- that have frozen must no longer be used.
Batteries -A- that have not been used for a long time will discharge by themselves.
In severely discharged Batteries -A-, the electrolyte consists almost completely of water, because the acid portion has been greatly reduced.
Severely discharged Batteries -A- become sulfated, meaning all of the plate surfaces of the Batteries -A- harden.
The sulfation process may be reversed if a severely discharged Battery -A- is recharged immediately.
If the Battery -A- is not recharged, the plates will continue to harden, and the ability to accept a charge will decrease. This results in reduction of battery performance.
Severely discharged Batteries -A- in vehicles must be replaced prior to delivery. Pre-existing damage cannot be ruled out.