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electrical:12v:charging [2020/04/27 20:54] frater_secessus [absorption stage] |
electrical:12v:charging [2020/10/18 11:52] frater_secessus [three stage charging] |
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- | [[lifestyle: | + | [[lifestyle: |
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+ | > “Three stage chargers are easier on your batteries, charge them faster, fuller and help you use less water”((https:// | ||
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+ | > A [ [[electrical: | ||
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+ | > Charging lead acid batteries is not something that you decide to do, or start or stop. The old statement, "I need to idle the engine for a few minutes to "top off" the batteries." | ||
====== charging deep cycle batteries ====== | ====== charging deep cycle batteries ====== | ||
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===== three stage charging ===== | ===== three stage charging ===== | ||
- | Three stage or " | + | Three stage((some mfg claim 4 or more charging stages, including equalization or proprietary stages. |
SternWake sums up smart charging: | SternWake sums up smart charging: | ||
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Some controllers will allow the user to configure the time or ratio of capacity/ | Some controllers will allow the user to configure the time or ratio of capacity/ | ||
> If your charge controller only holds [absorption] voltage for an hour or two, that is likely not enough time. As long as [there is a load] and you cycle the battery daily, you could set float voltage to 14.8v((for example - secessus)) [to match absorption] without worry. Only when you stop cycling the battery do you need to return float voltage to more regular 13.2v((for example - secessus)) levels. Premature application of float voltage by automatic charging sources is a battery killer.((http:// | > If your charge controller only holds [absorption] voltage for an hour or two, that is likely not enough time. As long as [there is a load] and you cycle the battery daily, you could set float voltage to 14.8v((for example - secessus)) [to match absorption] without worry. Only when you stop cycling the battery do you need to return float voltage to more regular 13.2v((for example - secessus)) levels. Premature application of float voltage by automatic charging sources is a battery killer.((http:// | ||
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+ | If Absorption cannot be completed in the max amount of time configurable in the controller (due to damaged/old batteries), **charging at the minimum rate and/or at higher voltage may help [[electrical: | ||
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Common Vfloat values range between 13.2v for stored batteries to 13.8v for banks that are deep cycled each day. | Common Vfloat values range between 13.2v for stored batteries to 13.8v for banks that are deep cycled each day. | ||
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+ | also see [[electrical: | ||
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**Manual chargers** will not be affected by load as they are controlled by the user. | **Manual chargers** will not be affected by load as they are controlled by the user. | ||
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+ | ===== battery voltage while charging ===== | ||
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+ | Battery Voltage = Battery Voc((resting voltage)) + (Charge Current x Ri((internal resistance))) | ||