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electrical:depth_of_discharge [2020/03/09 15:43]
frater_secessus [Depth of discharge / State of Charge] 		electrical:depth_of_discharge [2020/05/13 11:33]
frater_secessus [Depth of discharge / State of Charge]
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-====== Depth of discharge / State of Charge ======+===== Depth of discharge / State of Charge =====
  
 {{ http://popupbackpacker.com/wp-content/uploads/2013/12/State-of-Charge-Chart-Trojan.jpg?200|}}//Depth-of-discharge (DoD or DOD)// refers to how low a deep cycle battery is taken between [[electrical:12v:charging|full charges]].  DoD is the inverse of //State of Charge (SoC)//.  Example:  a battery at 30% DoD is at 70% SoC. {{ http://popupbackpacker.com/wp-content/uploads/2013/12/State-of-Charge-Chart-Trojan.jpg?200|}}//Depth-of-discharge (DoD or DOD)// refers to how low a deep cycle battery is taken between [[electrical:12v:charging|full charges]].  DoD is the inverse of //State of Charge (SoC)//.  Example:  a battery at 30% DoD is at 70% SoC.
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 DoD has a **significant impact on longevity of deep cycle batteries**.  For this reason [[electrical:inverter|Inverters]] and other high-load devices may have a [[electrical:12v:lvd|low voltage cutoff]]. DoD has a **significant impact on longevity of deep cycle batteries**.  For this reason [[electrical:inverter|Inverters]] and other high-load devices may have a [[electrical:12v:lvd|low voltage cutoff]].
 +====== effect of SoC on battery life ======
 +
 +
  
 The **most common discharge limit for deep cycle batteries is 50% DoD**.  This gives a good balance between usability and longevity.  The **lowest cost per Ah** occurs around 30% DoD although this requires buying, installing, and moving //dead lead// or unusable battery capacity.((20% DoD is the limit at which manufacturers rate their battery's cycles.))   The **most common discharge limit for deep cycle batteries is 50% DoD**.  This gives a good balance between usability and longevity.  The **lowest cost per Ah** occurs around 30% DoD although this requires buying, installing, and moving //dead lead// or unusable battery capacity.((20% DoD is the limit at which manufacturers rate their battery's cycles.))  
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   * lowest cost per Ah happens at 30% DoD   * lowest cost per Ah happens at 30% DoD
   * longest life happens at 20% DoD   * longest life happens at 20% DoD
-  * least battery weight happens at 80%+  * least battery weight happens at 80% DoD
 so make your DoD decision based on what is most important to you. so make your DoD decision based on what is most important to you.
 +
 | |  **T105 Ah**| |  **Cost**|  **weight per set**|  **Target Ah**| | | | | |  **T105 Ah**| |  **Cost**|  **weight per set**|  **Target Ah**| | | |
 | |  225| |  $260.00|  124|  175| | | | | |  225| |  $260.00|  124|  175| | | |
electrical/depth_of_discharge.txt ยท Last modified: 2023/08/17 21:36 by frater_secessus

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