This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
electrical:12v:charging [2019/07/17 08:17] frater_secessus [charging deep cycle batteries] |
electrical:12v:charging [2020/01/13 10:39] frater_secessus [absorption stage] |
||
---|---|---|---|
Line 31: | Line 31: | ||
==== absorption stage ==== | ==== absorption stage ==== | ||
- | The absorption stage, sometimes called // | + | The absorption stage, sometimes called // |
- | Absorption **begins when the battery reaches the absorption voltage** ([[electrical: | + | Absorption **begins when the battery reaches the absorption voltage** ([[electrical: |
+ | |||
+ | Example: | ||
+ | |||
+ | |||
+ | In practice absorption takes longer when the battery has been discharged deeply and shorter when it has not.((http:// | ||
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 [to match absorption] without worry. Only when you stop cycling the battery do you need to return float voltage to more regular 13.2v 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)) |
+ | |||
==== float stage ==== | ==== float stage ==== | ||
Line 84: | Line 91: | ||
===== charging other chemistries ===== | ===== charging other chemistries ===== | ||
- | See [[electrical: | + | See [[electrical: |
===== equalization ===== | ===== equalization ===== |