Routine Preventative Maintenance Agreements
We offer 1 to 3 year Service Agreements with 4 hour on-site
response time for Emergency Service. We also offer Quarterly, Semi-Annual and Annual Preventative Maintenance Agreements. Our
annual maintenance agreements provide discounted services and insure availability of field technicians during
critical shutdown periods. Battery demolition, recycling, installation, and commissioning are also available.
Rectifier Service and Testing
Our service and testing ranges from 3 amp DC rectifiers to 200,000 amp DC rectifiers used in battery charging, uninterruptible
power supplies, transit, metalworking and electro-chemical processes. Services include routine maintenance and testing/replacement
of components such as capacitors, relays and circuit card assemblies. Different charger models have varying limits on the output
voltage control and regulation. It is critical that these systems be maintained to insure the maximum life possible from the battery
system. When required, we also can supply new equipment for equipment in need of replacement.
Specific Gravity Readings
Specific gravity is measured using the latest technology in digital analysis and provides computerized printouts. The Anton
Paar DMA-35N accommodates either alkaline (potassium hydroxide for nickel cadmium battery electrolyte) or sulfuric acid for
lead acid batteries. This method provides automatic temperature compensation and offers better accuracy in results than the
manual bulb/hydrometer method.
DC Internal Resistance, Conductance/Impedance Testing
Using the Midtronics CTA4000 allows the most accurate testing available for trending state of health of batteries. Equipment
allows the expediency of automated results and data recording. We maintain an extensive data base by manufacture and cell type
to insure accurate diagnostics and trouble-shooting.
The absolute best test for determining the status of a battery system is a properly performed capacity test. There is
no substitute for determining the as-found condition of a battery than to discharge the battery at a known discharge
rate that approximates the actual load. This testing should be performed every 2 years on critical power
systems unless the capacity diminishes by more than 10% from the previous discharge test. In this case, the
capacity test should be performed annually.
To make this testing as safe, as quick, and as accurate as possible, AC & DC Power Technologies uses the
Alber BCT2000 test set, Cannon DC loadbank and the 2N load bank. Results are available immediately and allow for
flexible format in reporting. Where the DC plant has only one string of batteries, we offer temporary batteries that
can be connected without taking the system down. This allows the temporary battery to provide emergency power
while the tested battery is being recharged.
UPS Operability Testing
Uninterruptible power supplies should be tested annually to insure cleanliness, operability, and reliability. Our project management
team is experienced with all manufacturers and makes of static type uninterruptible power supplies. All acceptance testing,
commissioning testing and preventative maintenance testing is performed in accordance with manufacturers recommendations
and the NFPA 111 guidelines.
Battery Removal and Recycling
AC & DC Power Technologies LLC provides services to insure your company is never at risk for EPA violations when it
comes to removal, handling, disposal and recycling of spent products. We provide "cradle-to-grave" documentation
for the handling, transportation and ultimate smelting of your retired battery systems.