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Faqs
How do I know when it is time to replace my battery?
by Lifeline content | Jul 19, 2022 | General
Perform a capacity test. Short duration load tests and impedance/conductance measurements are not reliable to determine the actual capacity of a battery.
What causes some batteries to have convex or concave end walls?
by Lifeline content | Jul 19, 2022 | General
Lifeline® AGM batteries contain a pressure relief valve (PRV) that prevents excessive pressure buildup when the battery is being charged, and automatically reseals once the pressure is released. A slight bulge in the battery container (convex end walls) can appear...
How can I tell if my battery is fully charged?
by Lifeline content | Jul 19, 2022 | General
For a battery at room temperature, it can be considered fully charged with the charging current falls below 0.5A per 100Ah of rated capacity. The open circuit voltage (after at least 4 hours of rest) will be 2.17 volts per cell or higher (13.0 volts for a 12-volt...
What is the best charge voltage setting for outdoor applications if temperature sensing is not available?
by Lifeline content | Jul 19, 2022 | General
NONE! Charging voltage varies widely depending on the battery’s temperature and there is no single voltage that will work over a wide temperature range. Batteries will fail prematurely if this is attempted.
What is the best way to charge my battery?
by Lifeline content | Jul 19, 2022 | General
Charge with a 3 stage charger that compensates the voltage setting as teh battery temperature changes.
Can Lifeline® AGM batteries be installed in sealed containers?
by Lifeline content | Jul 19, 2022 | General
NO! Do not install Lifeline® AGM batteries in a sealed container or enclosure. During storage, charging, or discharging hydrogen gas can be released and must be ventilated to prevent the possibility of ignition and/or explosion.
What is the maximum number of batteries that can be connected in parallel?
by Lifeline content | Jul 19, 2022 |
There is no theoretical limit to the number of batteries that can be connected in parallel. As more batteries are paralleled together, the risk of one faulty battery affecting the entire battery bank increases. Depending on the criticality of the application, there...
What depth of discharge should be used when sizing a battery?
by Lifeline content | Jul 19, 2022 |
To get the best cycle life, the average depth of discharge should be as low as possible. Concorde recommends the average depth of discharge to be no greater than 50% of the battery’s 20 hour rating.
Why should I choose Lifeline® AGM batteries?
by Lifeline content | Jul 19, 2022 | General
Concorde has been supplying Lifeline® AGM batteries to the marine and recreational vehicle marketplace for over 20 years, providing excellent performance, reliability and life. With this long history and wide variety of successful applications, prospective customers...
What is the difference between AGM batteries and Gel batteries?
by Lifeline content | Jul 19, 2022 | General
Both AGM and Gel batteries utilize oxygen recombination and pressure relief valves to minimize water loss and allow maintenance-free operation. That is where the similarities end. AGM batteries have the advantage of being mountable in any orientation without capacity...