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electrical:12v:deep_cycle_battery [2023/10/27 12:30]
frater_secessus [Deep cycle batteries] 		electrical:12v:deep_cycle_battery [2024/04/15 01:00] (current)
frater_secessus [Chain Store Batteries]
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 ===== specs ===== ===== specs =====
  
-  * Ah (Amp-hours) - the rated [[electrical:12v:battery_capacity|capacity]] of the battery+  * Ah (Amp-hours) - the rated [[electrical:12v:battery_capacity|capacity]] of the battery. The basic concept is that a 100Ah battery could theoretically deliver 10A for 10 hours (10A x 10h = 100Ah).  In practice deep cycle batteries are not drained to 0%, and the rate of discharge can affect the apparent capacity. 
   * Wh (Watt-hours) - like Ah above, only multiplied by the nominal voltage.     * Wh (Watt-hours) - like Ah above, only multiplied by the nominal voltage.  
     * 100Ah of lead is 1200Wh (100Ah x 12.0v).       * 100Ah of lead is 1200Wh (100Ah x 12.0v).  
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     * Lead is typically rated at the 1/20th the current as Ah (5A for a 100Ah battery) down to 50% DoD.     * Lead is typically rated at the 1/20th the current as Ah (5A for a 100Ah battery) down to 50% DoD.
     * LiFePO4 is typically rated at the 1/5th the current as Ah (20A for a 100Ah battery) down to 80% DoD.     * LiFePO4 is typically rated at the 1/5th the current as Ah (20A for a 100Ah battery) down to 80% DoD.
-    * both maximum and recommended charge/discharge currents are given [[electrical:12v:battery_capacity|in C]].+    * both maximum and recommended charge/discharge currents are given [[electrical:12v:battery_capacity|in C]] or Amps. 
  
  
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 Further reading:  [[https://marinehowto.com/what-is-a-deep-cycle-battery/|this page]] with further explanation and teardowns to show the difference between deep cycle and "deep cycle" batteries.  Further reading:  [[https://marinehowto.com/what-is-a-deep-cycle-battery/|this page]] with further explanation and teardowns to show the difference between deep cycle and "deep cycle" batteries. 
  
-----+==== Telco backup batteries ==== 
 + 
 +Telcos and other companies that need battery backup rotate their AGM batteries out regularly;  these find their way onto the used market on pallets for relatively low prices.   
 + 
 +These backup batteries are not meant to cycle, vandweller style.  They are designed to live on Float forever then suddently dump their power when grid power goes down.   
 + 
 +Can you make them work for you?  Maybe, but people who can squeeze some use out of them already know what they are doing.   
  
  
electrical/12v/deep_cycle_battery.1698424252.txt.gz · Last modified: 2023/10/27 12:30 by frater_secessus

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