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Amperis presents a new generation of portable battery dischargers, with a reduced weight (which facilitates its transport) and with a wide range of voltages and currents to measure the capacity and total voltage of backup batteries in numerous applications.
The ABT-301 is a tester that analyzes the state of the battery. It is an economical and reliable equipment to calculate the internal resistance of the battery and the voltage. With the battery state analyzer, ABT-301 can eliminate batteries to ensure the performance of your battery systems.
The best AC load banks - batteries dischargers for testing UPS, AC supplies... Power resistors are used in generator load banks to avoid fouling of the diesel engine when the generator is operating at low power. Therefore, load bank are also used to reduce wet stacking issue in diesel engines. Etc...
Battery dischargers - The Battery Discharger is an automatic battery analyzer and discharger designed to test the efficiency of industrial batteries of any type, voltage and capacity. The computer can be programmed to precisely discharge the battery at a constant current, adjustable from zero to the maximum value of the model while keeping the battery voltage under control.
Battery tester CA6630 The CA6630 battery resistance tester checks batteries easily, safely and quickly, performing preventive maintenance. It measures the internal resistance (accurate 4-wire method) and the open circuit voltage (simultaneous display), adapted for all types of batteries. Software for PC data transfer and measurement cables.
Technical support for Battery Discharge
A sulphated battery is one which has been left standing in a discharged condition or undercharged to the point where abnormal lead sulphate has formed on the plates. When this occurs the chemical reactions within the battery are impeded and loss of capacity results.
This document does not cover all the electricity theory and technology involved in the process of sulphation in battery operated systems. For more information, please refer to specialized literature.
Most cases of sulphation are caused by:
When a cycled battery is charged repeatedly at low rates but not fully charged, the acid is not effectively driven out of the plates, particularly the lower parts, and sulphation results.
Repeated partial charges which do not effect thorough mixing of the electrolyte also result in sulphation. It is difficult in normal battery operation to determine just when sulphation begins, and only by giving periodic equalizing charges and comparing individual cell specific gravity and voltage reading can it be detected in its early stages and corrected or prevented.
Troublesome sulphation does not occur in less than 30 days.
Permitting a battery to stand in a partially discharged condition for long periods allows the sulphate deposited on the plates to harden and the pores to close. Batteries should be charged as soon as practicable after discharge and not allowed to stand in a completely discharged condition for more than one month. During freezing weather the battery should be recharged immediately following discharge to prevent freezing.
If the level of the electrolyte is permitted to fall below the tops of the plates the exposed surfaces will harden and become sulphated
If acid is added to a cell in which sulphation exists the condition will be aggravated.
In general, the higher the fully charged specific gravity of a cell the more likely is sulphation to occur and the more difficult to reduce. If in any battery there exists cells having specific gravity more than 0.015 above the average, the possibility of sulphation in these cells will be enhanced.
High temperatures accelerate sulphation, particularly of and idle, partially discharged battery.
All cells of a sulphated battery will give low specific gravity and voltage readings. They will not become fully charged after normal charging. An internal inspection will disclose negative plates having a slatelike feeling, sulphated negative-plate material being hard and gritty and having a sandy feeling when rubbed between thumb and forefinger.
The internal inspection should be made after a normal charge, since a discharged plate is always somewhat sulphated. A good fully charged negative plate is spongy and springy to the touch and gives a metallic sheen when stroked with the fingernail or knife. A sulphated positive plate is a lighter brown color than the normal plate.
Thorough and careful attention to the following steps often will restore a sulphated battery to good operation condition.