Common lead acid battery faults, Physics

common lead acid battery faults:

Careful treatment of lead acid batteries prevents damage and early failure, however, some common faults associated with lead acid batteries are:

Sulphation is the formation of hard, permanent lead sulphate on the plates and appears as random greyish white patches. Sulphation causes an increase in the internal resistance of the battery, leading to possible overheating and buckling of the plates.

Sulphation is caused by continually undercharging the battery or by discharging below 1.8 Volts or 1150 SG and is severe there is no cure, however if mild it can sometimes be cured by giving the battery a long low charge.

Buckling is twisting and bending of the plates. Because the active material is squeezed out of the plates the capacity of the battery may be reduced, if severe it can lead to internal shorting of the battery.

Buckling is caused by excessive charge and discharge currents being imposed on the battery and by the effects of sulphation.
There is no cure for buckling only prevention.

Sedimentation is the collection of discarded active material from the plates at the bottom of the cell.

Sedimentation may result in shorting of the plates and complete loss of capacity, slight shedding is normal in a well maintained battery.

 

Posted Date: 9/13/2012 2:06:15 AM | Location : United States







Related Discussions:- Common lead acid battery faults, Assignment Help, Ask Question on Common lead acid battery faults, Get Answer, Expert's Help, Common lead acid battery faults Discussions

Write discussion on Common lead acid battery faults
Your posts are moderated
Related Questions
For the square voltage waveform displayed on an oscilloscope shown in Figure, find  (a) its frequency,  (b) its peak-to-peak voltage.

True or False. The specific gravity of a fluid that sinks in water is greater than 1.00.

For the magnetic circuit shown in Figure find the current I in the coil needed to produce a flux of 0.45mWb in the air gap. The silicon iron magnetic circuit has a uniform cros

Longitudinal Wave A wave is a disturbance of a medium that transports energy by the medium without enduringly transporting matter. Within a wave, particles of the medium are te


(1) In Boolean algebra only two types of state variables (0 and 1) are permitted. (2) The variables (A, B, C ....) of Boolean algebra are subjected to three operations.

Where do you find the null points in the combined field due to the earth and a bar magnet, when i) the N-pole of the magnet is taken towards the north of the earth, ii) the

Define Electric Circuits So far we have only looked at electric charges sitting still and static discharges (like a shock or lightning). When we count on the charges moving thr


An open barge has the dimensions 22x40x12m. If the bargeis made out of 4.0-cm-thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in f