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electrical:severe_battery_use [2020/06/10 13:35] frater_secessus [limiting the damage] |
electrical:severe_battery_use [2020/07/08 12:38] frater_secessus [increasing effective Absorption duration] eternal |
===== limiting the damage ===== | ===== limiting the damage ===== |
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Deep cycling generally extends the amount of time for a battery to complete Absorption. | |
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* get power back into the battery ASAP after deep discharge; drive for [[electrical:12v:alternator|alternator charging]] or run a [[electrical:generator|generator]] to get bulk stage going. Solar alone //might// be sufficient but it might require meaningful [[electrical:solar:overpaneling|overpaneling]]. | * get power back into the battery ASAP after deep discharge; drive for [[electrical:12v:alternator|alternator charging]] or run a [[electrical:generator|generator]] to get bulk stage going. Solar alone //might// be sufficient but it might require meaningful [[electrical:solar:overpaneling|overpaneling]]. |
| * fully charge lead-chemistry batteries as often as possible |
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===== increasing effective Absorption duration ===== | ===== increasing effective Absorption duration ===== |
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While you may not be able to increase the //actual// Absorption duration,((as when the controller setpoint is maxxed out)) you can achieve a similar effect with one or more of these techniques: | Deep cycling generally extends the amount of time for a battery to complete Absorption. At some you may run into the controller's maximum Absorption duration. While you may not be able to increase the //actual// duration,((as when the controller setpoint is maxxed out)) you can achieve a similar effect with one or more of these techniques: |
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* if duration setpoint is maxxed then set Vfloat == Vabs. Absorption duration will effectively be "until the sun goes down". | * if duration setpoint is maxxed then [[electrical:12v:eternal_absorption|set Vfloat == Vabs]]. Absorption duration will effectively be "until the sun goes down". |
* charge at a lower current (charging minimum). While [[opinion:frater_secessus:charging_faster|overall charging will take about the same amount of time]], Bulk's share of that time will increase and [[electrical:12v:charging#absorption|Absorption will take somewhat less time]]. | * **charge at a lower current** (charging minimum). While [[opinion:frater_secessus:charging_faster|overall charging will take about the same amount of time]], Bulk's share of that time will increase and [[electrical:12v:charging#absorption|Absorption will take somewhat less time]]. |
* charge at a higher voltage (Vabs), this will decrease Absorption duration. Keep a close watch on water levels for flooded batts, and also mind the max allowable voltage for AGM/Gel. | * **charge at a higher voltage** (Vabs), this will decrease Absorption duration. Keep a close watch on water levels for flooded batts, and also mind the max allowable voltage for AGM/Gel. |
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